Question 1 of 5
Which of the following is not an input device?
A. VDU
B. Keyboard
C. Monitor
D. Light Pen
A
VDU
B
Keyboard
C
Monitor
D
Light Pen
Why: Input devices are used to enter data into the computer. Keyboard and Light Pen are input devices for typing and pointing respectively. VDU (Visual Display Unit) and Monitor are primarily output devices that display information from the computer. Therefore, Monitor (option C) is not an input device.
Question 2 of 5
Which component is considered the "brain" of the computer?
A. Hard Drive
B. CPU
C. RAM
D. GPU
A
Hard Drive
B
CPU
C
RAM
D
GPU
Why: The CPU (Central Processing Unit) is known as the brain of the computer because it performs the majority of processing tasks, executes instructions from programs, performs calculations, and controls other components. RAM stores data temporarily, GPU handles graphics, and Hard Drive stores data permanently.
Question 3 of 5
A microprocessor unit, a memory unit, and an input/output unit form a ____.
A. Microcomputer
B. CPU
C. Compiler
D. ALU
A
Microcomputer
B
CPU
C
Compiler
D
ALU
Why: A microcomputer is a complete computer system on a smaller scale, consisting of a microprocessor (CPU), memory unit for storage, and input/output units for interaction. CPU is just the processor, ALU is part of CPU for arithmetic, and compiler translates code.
Question 4 of 5
The software used to drive microprocessor-based systems is known as ___.
A. Firmware
B. Assembly language programs
C. Flowchart instructions
D. BASIC interpreter instructions
A
Firmware
B
Assembly language programs
C
Flowchart instructions
D
BASIC interpreter instructions
Why: Firmware is software embedded in hardware, specifically designed to control and drive microprocessor-based systems like BIOS in computers. It operates at a low level directly interfacing with hardware, unlike higher-level languages or instructions.
Question 5 of 5
The table below lists some components of a computer system. Put one tick on each row to describe each component as either: software, hardware, or both. (Note: Common components include RAM, CPU, Operating System, Monitor, Hard Disk, Application Software)
Why: Hardware refers to physical components of a computer system that can be touched, such as RAM (volatile memory), CPU (processor), Monitor (display), and Hard Disk (storage). Software consists of programs and instructions, like Operating System (manages hardware) and Application Software (user programs). No common components are both.
