Quick recall · 198 cards
Short MCQ-style retrieval prompts. Tap a card to reveal the answer.
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Which of the following is the most common input device used to input text, numbers, and instructions into the computer?
B · Keyboard
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What provides common services for computer programs using computer hardware and software resources? Give examples.
B · System Software
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Which one of the following is not computer hardware?
D · Microsoft Word
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Which one of the following is an input device?
C · Keyboard
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The processor's speed has been measured in what?
A · Hertz
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A device that allows users to feed data into a computer for analysis and storage and to give commands to the computer is called
B · b) Input device
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User communicates with a computer with the help of which devices?
D · d) Both a and b
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Which device allows you to enter data and instructions into a computer?
A · a) Input device
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Which device converts human-understandable data and programs into a form that computers can understand and process?
C · c) Input
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A device that communicates the results of data processed by the computer and converts the digital information into a form that humans can easily read and understood is called
C · c) Output
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True or False: a) Size of SRAM is smaller than the size of DRAM.
A · True
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True or False: b) DRAM is faster to access compared to SRAM.
B · False
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True or False: c) DRAM is used to build Cache memory.
B · False
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True or False: d) Flash memory is slower than SRAM and DRAM.
A · True
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True or False: e) Flash memory is a volatile memory.
B · False
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True or False: f) SRAM is a non-volatile memory.
B · False
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Which type of memory is used to store programs and data when there is insufficient RAM?
C · Virtual memory
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The faster, costlier and relatively small form of storage managed by computer system hardware is:
C · Cache
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The main function of the central processing unit is to:
B · b. carry out program instructions
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What is the primary function of the CPU?
C · c. To process data and execute instructions
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Which component of the CPU is responsible for performing arithmetic and logic operations?
B · b. ALU (Arithmetic Logic Unit)
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What is the purpose of the Control Unit in the CPU?
C · c. To control the flow of data and instructions within the CPU
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Brain of computer is ____________
C · c. Central Processing Unit
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Control Unit acts as the central nervous system of the computer. a) True b) False
A · a) True
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Which of the following best defines a computer system?
B · A combination of hardware and software that accepts input, processes data, stores data, and produces output
A computer system includes hardware and software working together to accept input, process data, store it, and produce output.
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Which characteristic of a computer system refers to its ability to perform multiple tasks simultaneously?
B · Multitasking
Multitasking is the ability of a computer to perform multiple tasks at the same time.
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Which of the following is NOT a characteristic of a computer system?
B · Emotions
Computers do not have emotions; this is not a characteristic of computer systems.
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Which of the following best describes the main function of the processing unit in a computer system?
C · To execute instructions and process data
The processing unit (CPU) executes instructions and processes data.
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Which of the following is an example of an output device?
C · Monitor
A monitor displays information to the user, making it an output device.
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Which component is responsible for temporarily holding data and instructions during processing?
B · RAM
RAM (Random Access Memory) temporarily holds data and instructions for quick access during processing.
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Which of the following correctly lists the four basic components of a computer system?
A · Input, Output, Processing, Storage
The four basic components are Input, Output, Processing, and Storage.
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Refer to the diagram below. Which component labeled in the block diagram is responsible for storing data permanently?
C · Component C (Storage Unit)
The storage unit is responsible for permanent data storage.
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Which type of computer is classified as a microcomputer primarily designed for individual use?
C · Personal computer
Personal computers are microcomputers designed for individual use.
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Which of the following computers is mainly used for complex scientific calculations and weather forecasting?
A · Supercomputer
Supercomputers are used for complex scientific calculations and simulations.
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Refer to the classification chart below. Which type of computer is represented by the smallest block indicating lowest processing power and size?
D · Microcomputer
Microcomputers are the smallest in size and processing power among the listed types.
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Which generation of computers used transistors instead of vacuum tubes?
B · Second generation
Second generation computers used transistors replacing vacuum tubes.
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Which feature is characteristic of third generation computers?
A · Use of integrated circuits
Third generation computers used integrated circuits for improved performance.
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Which generation of computers introduced the use of microprocessors?
C · Fourth generation
Fourth generation computers introduced microprocessors.
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Refer to the timeline diagram below. Which generation is represented by the period 1940-1956?
A · First generation
The first generation of computers spanned approximately 1940-1956 and used vacuum tubes.
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Which hardware component is known as the 'brain' of the computer?
B · Central Processing Unit (CPU)
The CPU is called the brain of the computer because it controls all operations.
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Which memory type is volatile and loses data when power is turned off?
C · RAM
RAM is volatile memory and loses data when power is off.
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Which of the following is an example of an input device?
C · Keyboard
Keyboard is used to input data into the computer.
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Refer to the CPU architecture diagram below. Which part labeled 'B' is responsible for performing arithmetic and logical operations?
B · Arithmetic Logic Unit (ALU)
The ALU performs arithmetic and logical operations.
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Which of the following represents data in a computer system?
A · Text, numbers, images, and sounds
Data can be represented as text, numbers, images, and sounds in a computer.
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Which number system is primarily used by computers to represent data?
B · Binary
Computers use the binary number system (0s and 1s) to represent data.
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Which of the following is a basic operation performed by a computer during processing?
C · Arithmetic calculation
Arithmetic calculation is a basic operation performed during processing.
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Refer to the data flow diagram below. Which stage labeled 'C' represents the processing phase in the computer cycle?
B · Processing
The processing phase is where data is processed by the CPU.
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Which software type manages the hardware and provides a platform for application software?
A · System software
System software manages hardware and provides a platform for applications.
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Which of the following is an example of application software?
B · Word processor
Word processors are application software used for document creation.
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Which software type acts as an intermediary between hardware and user applications?
A · System software
System software acts as an intermediary between hardware and applications.
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Which of the following software is responsible for managing files and controlling peripherals?
A · Operating system
Operating systems manage files and control hardware peripherals.
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Which of the following correctly lists the sequence of basic computer operations in the processing cycle?
A · Input → Processing → Storage → Output
The correct sequence is Input, Processing, Storage, and Output.
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Refer to the process cycle diagram below. Which stage labeled 'D' represents the output phase?
D · Output
The output phase is where processed data is sent to output devices.
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Which operation is performed during the 'fetch' phase of the instruction cycle?
C · Retrieve instruction from memory
During the fetch phase, the CPU retrieves the instruction from memory.
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Which of the following is NOT part of the basic instruction cycle in a computer?
D · Compile
Compile is a programming process, not part of the instruction cycle.
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Which of the following best defines computer hardware?
A · The physical components of a computer system
Hardware refers to the tangible, physical parts of a computer system such as the CPU, memory devices, and input/output devices.
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Which classification of hardware components includes devices like keyboard, mouse, and scanner?
A · Input Devices
Input devices are hardware components used to enter data and instructions into a computer system.
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Which of the following is NOT a primary classification of computer hardware?
C · Software Applications
Software applications are programs, not hardware components. Hardware includes input, output, storage, and processing units.
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Which of the following best describes the classification of hardware components based on their function?
A · Input, Output, Storage, Processing
Hardware components are typically classified by their function into input, output, storage, and processing units.
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Which input device is primarily used for pointing, clicking, and dragging on a computer screen?
A · Mouse
A mouse is a pointing device used to interact with graphical elements on the screen.
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Which input device converts printed text or images into digital form?
A · Scanner
A scanner captures printed text or images and converts them into digital data for the computer.
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Which input device is best suited for capturing live video and images for video conferencing?
A · Webcam
A webcam captures live video and images, commonly used in video conferencing.
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Which input device is commonly used by gamers for controlling movement and actions in video games?
A · Joystick
A joystick is a specialized input device used for gaming to control movement and actions.
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Which of the following input devices uses voice recognition to input data into a computer?
A · Microphone
A microphone captures audio input which can be processed by voice recognition software.
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Which output device is used to display visual information to the user?
A · Monitor
A monitor displays images, videos, and graphical output from the computer.
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Which output device produces a hard copy of digital documents?
A · Printer
Printers produce physical copies of digital documents on paper.
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Which output device converts digital audio signals into sound waves?
A · Speaker
Speakers convert digital audio signals into audible sound for the user.
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Which output device is commonly used to display presentations on a large screen during meetings?
A · Projector
Projectors display computer output on large screens for group viewing.
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Which output device uses ink or toner to produce images on paper?
A · Printer
Printers use ink or toner cartridges to produce printed images and text.
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Which of the following is a non-volatile storage device commonly used to store large amounts of data?
A · Hard Disk Drive (HDD)
HDDs provide permanent storage and retain data even when power is off.
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Which storage device uses flash memory and has no moving parts, offering faster access than HDDs?
A · Solid State Drive (SSD)
SSDs use flash memory technology to provide faster data access and durability.
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Which storage device is commonly used for backup and archival and stores data on magnetic tape?
A · Magnetic Tape
Magnetic tape is used for long-term storage and backup due to its high capacity and low cost.
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Which optical storage device uses laser technology to read and write data on discs?
A · CD/DVD
CDs and DVDs use lasers to read/write data on optical discs.
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Which storage device is best suited for fast temporary data storage during program execution?
A · RAM
RAM is volatile memory used for temporary storage and fast access during processing.
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Refer to the diagram below of a CPU block diagram. Which component is responsible for performing arithmetic and logical operations?
A · ALU (Arithmetic Logic Unit)
The ALU performs all arithmetic and logical operations within the CPU.
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Which part of the CPU controls the execution of instructions and directs the flow of data within the computer?
A · Control Unit
The Control Unit manages instruction execution and coordinates activities of the CPU and other components.
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Which CPU component temporarily holds data and instructions for quick access during processing?
A · Registers
Registers are small, fast storage locations inside the CPU used to hold data and instructions temporarily.
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Which type of memory is volatile and loses its contents when the power is turned off?
A · Primary Memory (RAM)
Primary memory such as RAM is volatile and requires power to retain data.
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Which of the following is an example of secondary memory used for permanent data storage?
A · Hard Disk Drive (HDD)
HDD is a secondary memory device used for long-term data storage.
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Which memory type is faster and used to store frequently accessed data to speed up processing?
A · Cache Memory
Cache memory is a small, fast memory located close to the CPU to speed up access to frequently used data.
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Which of the following is NOT a characteristic of primary memory?
C · Permanent storage
Primary memory is volatile and temporary; permanent storage is a feature of secondary memory.
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Which of the following is an example of a peripheral device used to extend computer functionality?
A · External Hard Drive
Peripheral devices like external hard drives connect externally to provide additional functionality.
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Which interface is commonly used to connect peripheral devices such as keyboards and mice to a computer?
A · USB (Universal Serial Bus)
USB is a widely used interface for connecting input/output peripherals to computers.
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Which peripheral device is used to convert digital signals into analog signals for output devices like speakers?
A · Digital-to-Analog Converter (DAC)
DAC converts digital data into analog signals for devices such as speakers and headphones.
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Which of the following is a smart peripheral device that can both input and output data?
A · Touchscreen
A touchscreen acts as both an input device (touch) and output device (display).
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Refer to the diagram below showing various ports and connectors. Which port is typically used to connect a monitor to a computer?
A · HDMI
HDMI ports are commonly used to connect monitors and other display devices.
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Which port is primarily used for connecting external storage devices and supports hot-swapping?
A · USB
USB ports allow connection of external devices like flash drives and support hot-swapping without rebooting.
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Which port is used to connect a computer to a wired network for internet access?
A · Ethernet
Ethernet ports connect computers to local area networks (LAN) using network cables.
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Which port is used to connect analog audio devices such as headphones or microphones?
A · Audio Jack
Audio jacks are used to connect analog audio input/output devices like headphones and microphones.
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Which generation of computers used vacuum tubes as the main electronic component?
A · First Generation
First generation computers (1940s-1950s) used vacuum tubes for circuitry and magnetic drums for memory.
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Which generation of computers introduced the use of integrated circuits (ICs), improving speed and reducing size?
A · Third Generation
Third generation computers (1960s) used ICs, which replaced transistors and vacuum tubes.
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Which generation of computers is characterized by the use of microprocessors and personal computers?
A · Fourth Generation
Fourth generation computers (1970s-present) use microprocessors enabling compact and powerful personal computers.
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Which of the following best defines computer hardware?
A · The physical components of a computer system
Computer hardware refers to the tangible physical parts of a computer system such as the CPU, memory devices, and input/output devices.
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Which of the following is NOT a classification of hardware components?
C · Operating systems
Operating systems are software, not hardware components. Hardware classifications include input devices, processing units, storage devices, etc.
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Which hardware component acts as the brain of the computer, executing instructions and managing operations?
A · Central Processing Unit (CPU)
The CPU is the primary processing unit responsible for executing instructions and controlling other components.
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Which of the following is a correct classification of hardware components based on their function?
A · Input, Processing, Output, Storage
Hardware components are commonly classified into input, processing, output, and storage devices based on their roles.
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Refer to the diagram below showing a block diagram of computer hardware. Which block represents the device that converts user commands into machine-readable signals?
A · Input Unit
The Input Unit receives data and instructions from the user and converts them into signals understandable by the computer.
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Which of the following is the most commonly used input device for entering textual data into a computer?
A · Keyboard
The keyboard is the primary input device used to enter text, numbers, and commands into a computer.
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Which input device is used to convert printed text or images into digital form?
A · Scanner
A scanner captures printed text or images and converts them into digital data for the computer.
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Which input device is primarily used for capturing audio signals and converting them into digital data?
A · Microphone
Microphones capture sound waves and convert them into electrical signals for digital processing.
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Which of the following input devices is best suited for controlling movement in computer games?
A · Joystick
A joystick is designed to control movement and direction in gaming and simulation applications.
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Which input device uses optical recognition to read barcodes and convert them into digital data?
A · Barcode Reader
Barcode readers scan barcodes and translate the patterns into digital information for processing.
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Refer to the diagram below showing various input devices. Which device is labeled as the one that detects finger movement and taps on a flat surface?
A · Touchpad
A touchpad detects finger movement and taps on a flat surface and is commonly used in laptops.
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Which output device is primarily used to display visual information to the user?
A · Monitor
Monitors display visual output such as text, images, and videos to the user.
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Which output device produces a hard copy of digital documents and images on paper?
A · Printer
Printers convert digital data into physical printed copies on paper.
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Which output device converts digital audio signals into sound waves?
A · Speaker
Speakers convert electrical audio signals into audible sound for the user.
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Which output device is best suited for displaying presentations on a large screen to an audience?
A · Projector
Projectors display computer output onto large surfaces such as screens or walls for group viewing.
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Refer to the diagram below showing output devices. Which device is labeled as the one that produces physical copies of documents?
A · Printer
The printer is the output device that produces physical paper copies of digital documents.
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Which of the following is a volatile storage device that temporarily holds data and instructions during processing?
A · Random Access Memory (RAM)
RAM is volatile memory that temporarily stores data and instructions while the computer is running.
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Which storage device uses magnetic storage to store large amounts of data permanently?
A · Hard Disk Drive (HDD)
HDDs use magnetic platters to store data permanently and provide large storage capacity.
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Which storage device stores data using flash memory and has no moving parts?
A · Solid State Drive (SSD)
SSDs use flash memory to store data and are faster and more durable than HDDs because they have no moving parts.
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Which storage medium is primarily used for archival and backup purposes due to its sequential access nature?
A · Magnetic Tape
Magnetic tape is used for backups and archival storage because it stores data sequentially and is cost-effective for large volumes.
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Refer to the diagram below showing the internal layout of a Hard Disk Drive (HDD). Which component is responsible for reading and writing data on the disk platters?
A · Read/Write Head
The read/write head moves over the platters to read and write data magnetically.
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Which part of the CPU is responsible for performing arithmetic and logical operations?
A · Arithmetic Logic Unit (ALU)
The ALU performs all arithmetic calculations and logical comparisons within the CPU.
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Which CPU component directs the flow of data between the CPU and other hardware components by interpreting instructions?
A · Control Unit (CU)
The Control Unit manages and coordinates the activities of the CPU by directing data flow and instruction execution.
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Which of the following registers temporarily holds data and instructions during CPU processing?
A · Register
Registers are small, fast storage locations inside the CPU that hold data and instructions temporarily during processing.
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Which CPU component is responsible for fetching instructions from memory, decoding them, and executing the operations?
A · Control Unit (CU)
The Control Unit fetches, decodes, and executes instructions by coordinating with other CPU parts.
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Refer to the CPU architecture schematic below. Identify the component labeled as responsible for arithmetic and logical operations.
A · ALU
The ALU is the part of the CPU that performs arithmetic and logical operations.
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Which memory type is non-volatile and stores data permanently even when the computer is turned off?
A · Secondary Memory
Secondary memory such as hard drives and SSDs store data permanently and retain it without power.
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Which of the following is an example of primary memory used for temporary data storage during program execution?
A · Random Access Memory (RAM)
RAM is primary memory used for temporary storage of data and instructions while programs run.
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Which memory type is faster and located closer to the CPU to speed up data access?
A · Cache Memory
Cache memory is a small, fast memory located inside or near the CPU to reduce access time to frequently used data.
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Which type of memory is read-only and stores firmware instructions essential for booting the computer?
A · Read-Only Memory (ROM)
ROM stores permanent firmware instructions that cannot be modified and are used during system startup.
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Refer to the diagram below comparing primary and secondary memory. Which memory type is volatile and loses data when power is off?
A · Primary Memory
Primary memory such as RAM is volatile and loses data when power is turned off, unlike secondary memory.
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Which of the following devices is considered a peripheral device that extends the computer's functionality externally?
A · Printer
Printers are peripheral devices connected externally to provide additional output capabilities.
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Which interface is commonly used to connect external storage devices such as USB flash drives to a computer?
A · USB (Universal Serial Bus)
USB is a widely used interface for connecting external peripherals including storage devices.
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Which peripheral device is used to convert digital signals into analog signals for audio output?
A · Speakers
Speakers convert digital audio signals into analog sound waves for listening.
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Which peripheral interface allows high-definition video and audio transmission between devices?
A · HDMI
HDMI transmits high-definition video and audio signals between compatible devices.
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Refer to the diagram below showing various peripheral interfaces. Which port is typically used for wired network connections?
A · Ethernet Port
The Ethernet port is used for wired network connections via an RJ45 cable.
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Which port is commonly used to connect external monitors to a computer for video output?
A · VGA or HDMI Port
VGA and HDMI ports are used to connect monitors and other display devices for video output.
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Which port is used to connect a computer to a wired local area network (LAN)?
A · Ethernet Port
Ethernet ports connect computers to wired networks using RJ45 cables.
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Which port type supports hot-swapping and is widely used for connecting external devices like keyboards, mice, and storage drives?
A · USB Port
USB ports support hot-swapping and are the most common interface for external peripherals.
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Refer to the diagram below illustrating common computer ports. Which port is used for connecting analog audio output devices?
A · Audio Jack
The audio jack is used to connect headphones, speakers, and other analog audio devices.
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Which generation of computers introduced the use of integrated circuits (ICs) leading to smaller and faster machines?
A · Third Generation
The third generation of computers used integrated circuits, improving speed and reducing size compared to earlier generations.
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Which generation of computers was characterized by the use of vacuum tubes for circuitry and magnetic drums for memory?
A · First Generation
First generation computers used vacuum tubes and magnetic drums and were large and less reliable.
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Which generation of computers introduced microprocessors, leading to the development of personal computers?
A · Fourth Generation
The fourth generation used microprocessors, enabling smaller, faster, and affordable personal computers.
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Refer to the timeline diagram below showing computer generations. Which generation is associated with the use of artificial intelligence and parallel processing?
A · Fifth Generation
The fifth generation focuses on AI, parallel processing, and advanced computing technologies.
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A user installs a PCIe 4.0 x16 GPU into a motherboard that supports only PCIe 3.0 x8 slots. Which of the following best describes the impact on GPU performance and compatibility?
A · The GPU will operate at PCIe 3.0 x8 speeds with full compatibility and minimal performance loss in most applications
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A user replaces a standard 5400 RPM HDD with a 7200 RPM HDD in a laptop. Considering power consumption, heat generation, and performance, which of the following statements is MOST accurate?
B · 7200 RPM HDD consumes more power and heat but performance gain is noticeable mainly in sequential reads/writes
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Which of the following best defines an input device?
A · A device that sends data to the computer for processing
Input devices are hardware components used to send data and control signals to a computer for processing.
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Which of the following is NOT a classification of input devices?
D · Digital output devices
Digital output devices are output devices, not a classification of input devices.
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Which input device converts physical documents into digital format?
A · Scanner
A scanner is used to convert physical documents and images into digital data.
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Which of the following input devices is classified as a pointing device?
A · Mouse
A mouse is a pointing input device used to interact with graphical elements on the screen.
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Which of the following best describes a touch screen as an input device?
A · It combines input and output functions in a single device
A touch screen acts both as an input device (touch detection) and output device (display).
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Which of the following best defines an output device?
A · A device that receives data from the computer and presents it to the user
Output devices receive processed data from the computer and present it in a usable form to the user.
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Which of the following is NOT a classification of output devices?
C · Storage output devices
Storage devices are not output devices; they are used for data storage.
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Which output device is primarily used to display visual information on a screen?
A · Monitor
A monitor displays visual output from the computer to the user.
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Which output device converts digital audio signals into audible sound?
A · Speakers
Speakers convert digital audio signals into sound waves that can be heard by humans.
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Which of the following output devices can project computer images onto a large screen for presentations?
A · Projector
Projectors display computer images on large surfaces, useful for presentations.
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Which input device is most commonly used to enter text and commands into a computer?
A · Keyboard
The keyboard is the primary input device used for entering text and commands.
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Which input device is used to point, click, and drag objects on a computer screen?
A · Mouse
A mouse is a pointing device used to interact with graphical elements on the screen.
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Which input device captures live video and images for use in video conferencing?
A · Webcam
A webcam captures live video and images for communication and recording.
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Which input device converts spoken words into digital signals for processing by a computer?
A · Microphone
A microphone captures audio input by converting sound waves into digital signals.
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Which input device is best suited for digitizing printed photographs into editable digital images?
A · Scanner
Scanners convert physical photographs into digital images for editing and storage.
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Which input device allows users to write or draw directly on a computer screen?
A · Graphics tablet
A graphics tablet allows users to input hand-drawn images or handwriting digitally.
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Which output device is primarily used to produce hard copies of documents?
A · Printer
Printers produce physical copies of digital documents on paper.
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Which output device displays images and text on a screen for user interaction?
A · Monitor
Monitors display visual output from the computer to the user.
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Which output device converts digital audio signals into sound waves?
A · Speakers
Speakers output audio signals as sound waves audible to humans.
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Which output device is best suited for displaying presentations to a large audience?
A · Projector
Projectors display images on large screens suitable for audiences.
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Which output device uses ink or toner to produce text and images on paper?
A · Printer
Printers use ink or toner cartridges to print documents and images on paper.
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Which specialized input device is used to convert printed text into editable digital text?
A · Scanner with OCR software
Scanners combined with Optical Character Recognition (OCR) software convert printed text into editable digital text.
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Which specialized input device is used to capture sound for voice recognition or recording?
A · Microphone
Microphones capture audio input for voice recognition or recording.
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Which specialized input device is commonly used for video calls and live streaming?
A · Webcam
Webcams capture live video for communication and streaming purposes.
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Which specialized input device is used to digitize hand-drawn sketches or signatures?
A · Graphics tablet
Graphics tablets allow users to input drawings or signatures digitally.
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Which specialized input device uses light sensors to scan barcodes for data input?
A · Barcode scanner
Barcode scanners use light sensors to read barcode patterns and input data.
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Which specialized output device is used to amplify audio signals for better sound quality?
A · Speakers
Speakers amplify and output audio signals as sound.
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Which specialized output device projects computer images onto a large screen for group viewing?
A · Projector
Projectors display images on large surfaces for audiences.
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Which specialized output device converts digital signals into vibrations for tactile feedback?
A · Haptic device
Haptic devices provide tactile feedback by converting digital signals into vibrations.
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Which specialized output device is used in theaters and auditoriums to amplify sound for large audiences?
A · Public address (PA) system speakers
PA system speakers amplify sound for large venues such as theaters and auditoriums.
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Which interface is commonly used to connect keyboards and mice to a computer?
A · USB
USB (Universal Serial Bus) is the standard interface for connecting input devices like keyboards and mice.
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Which interface is primarily used to connect monitors to computers for video output?
A · HDMI
HDMI (High-Definition Multimedia Interface) is commonly used for transmitting video and audio from a computer to a monitor.
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Which connectivity type allows wireless communication between input/output devices and computers?
A · Bluetooth
Bluetooth is a wireless technology used to connect devices without cables.
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Which of the following connectors is used to connect audio output devices like headphones and speakers?
A · 3.5 mm audio jack
The 3.5 mm audio jack is a standard connector for audio output devices.
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Which technology trend has greatly influenced the development of input devices in recent years?
A · Touchscreen and gesture recognition
Touchscreen and gesture recognition technologies have revolutionized input devices by enabling more natural user interactions.
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Which of the following is a recent advancement in output device technology?
A · OLED displays
OLED (Organic Light Emitting Diode) displays offer better color, contrast, and energy efficiency compared to older technologies.
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Which technology trend has enabled wireless input and output device connectivity?
A · Bluetooth and Wi-Fi
Bluetooth and Wi-Fi technologies allow wireless communication between devices and computers.
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Which of the following is a challenge in the evolution of input/output devices?
A · Ensuring compatibility across multiple platforms
Compatibility issues arise as new devices and standards evolve, requiring careful design to ensure interoperability.
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If a keyboard is not responding, which of the following is the first step in troubleshooting?
A · Check the connection or cable
Checking the physical connection is the first step to ensure the keyboard is properly connected.
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Which of the following can cause compatibility issues with input/output devices?
A · Using outdated drivers
Outdated or incompatible drivers can prevent devices from functioning correctly with the operating system.
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Which troubleshooting step should be taken if a printer prints blank pages?
A · Check ink or toner levels
Low or empty ink/toner cartridges cause blank pages to be printed.
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When connecting a new input device, which factor is most important to ensure compatibility?
A · Supported operating system and drivers
The device must have compatible drivers and support the operating system to function properly.
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Which of the following is a volatile type of primary memory used for temporary data storage during program execution?
B · RAM
RAM (Random Access Memory) is volatile memory, meaning it loses its data when power is turned off. It is used for temporary data storage during program execution.
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Which type of primary memory is non-volatile and typically stores firmware or bootstrap programs?
C · ROM
ROM (Read-Only Memory) is non-volatile and stores firmware or bootstrap programs that are essential for starting the computer.
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Which of the following best describes the main difference between RAM and ROM?
A · RAM is volatile; ROM is non-volatile
RAM is volatile memory used for temporary data storage, while ROM is non-volatile memory used for permanent storage of firmware.
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Which of the following statements about RAM is TRUE?
C · It allows both read and write operations
RAM allows both read and write operations and is used for temporary data storage while the computer is running.
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Which secondary storage device uses magnetic disks to store data?
B · HDD
HDD (Hard Disk Drive) uses magnetic disks to store data magnetically.
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Which of the following secondary storage devices is known for having no moving parts and faster data access speed?
B · SSD
SSD (Solid State Drive) has no moving parts and provides faster data access compared to HDDs.
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Which secondary storage device is most suitable for long-term archival storage and is read using a laser?
B · Optical Disk
Optical disks such as CDs and DVDs use lasers to read data and are often used for long-term archival storage.
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Which of the following is NOT a characteristic advantage of flash memory compared to HDDs?
C · Lower cost per GB
Flash memory generally has a higher cost per GB compared to HDDs, despite advantages in speed and durability.
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Cache memory is primarily used to:
B · Increase the speed of data access between CPU and RAM
Cache memory is a small, fast memory located close to the CPU used to speed up data access between CPU and RAM.
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Which memory type is the smallest and fastest, used to hold data immediately needed by the CPU?
B · Registers
Registers are the smallest and fastest memory inside the CPU used to hold data and instructions immediately required during processing.
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Which of the following best describes the position of cache memory in the memory hierarchy?
B · Between CPU registers and RAM
Cache memory is located between the CPU registers and RAM to provide faster access to frequently used data.
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Which memory characteristic refers to the ability of memory to retain data when power is turned off?
A · Volatility
Volatility refers to whether memory retains data without power. Non-volatile memory retains data when power is off.
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Which of the following memory types generally has the highest speed but lowest capacity?
A · Cache Memory
Cache memory is faster than RAM and secondary storage but usually has much lower capacity.
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Which memory characteristic is generally inversely proportional to speed and directly proportional to cost per bit?
A · Capacity
Higher capacity memory tends to be slower and less expensive per bit, while faster memory usually has lower capacity and higher cost per bit.
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In the memory hierarchy, which of the following correctly orders memory from fastest to slowest?
A · Registers > Cache > RAM > Secondary Storage
The correct order from fastest to slowest is Registers, Cache, RAM, then Secondary Storage.
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Which of the following best explains why cache memory improves CPU performance?
B · It reduces the average time to access data from main memory
Cache memory stores frequently accessed data to reduce the average time the CPU takes to access data from slower main memory.
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Which of the following is NOT a typical use of PROM (Programmable ROM)?
B · Storing data that can be rewritten multiple times
PROM can be programmed only once; it cannot be rewritten multiple times. Memory that can be rewritten multiple times is EEPROM or Flash.
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Which type of ROM can be electrically erased and reprogrammed multiple times, making it useful for firmware updates?
C · EEPROM
EEPROM (Electrically Erasable Programmable ROM) can be erased and reprogrammed electrically multiple times, allowing firmware updates.
