Completed
Basic Computer Organisation
Questions From This Challenge
Q1mcq1 mark
Which of the following best describes 'software'?
A set of programs and instructions that tell hardware what to do ✓
The physical, touchable parts of a computer system
A device used to input data into a computer
The electronic circuitry that performs arithmetic operations
Q2mcq1 mark
In a computer system, which of these is classified as an input device?
Scanner ✓
Monitor
Printer
Speaker
Q3mcq1 mark
Which of these is an output device?
Plotter ✓
Keyboard
Mouse
Microphone
Q4mcq1 mark
The part of the CPU responsible for performing arithmetic and logical operations is the:
Arithmetic Logic Unit (ALU) ✓
Control Unit (CU)
Cache Memory
Register File
Q5mcq1 mark
Which CPU component directs and coordinates the operations of the computer by sending control signals to other units?
Control Unit (CU) ✓
Arithmetic Logic Unit (ALU)
Primary Memory
Secondary Storage
Q6mcq1 mark
Which statement correctly distinguishes primary memory from secondary memory?
Primary memory is directly accessible by the CPU and is usually volatile, while secondary memory is non-volatile and used for long-term storage ✓
Primary memory is non-volatile while secondary memory is volatile
Both are equally fast and directly accessed by the CPU
Secondary memory is always smaller in capacity than primary memory
Q7mcq1 mark
RAM (Random Access Memory) is best described as:
A volatile primary memory that loses its contents when power is turned off ✓
A non-volatile memory used to permanently store the BIOS
A type of secondary storage device
A device used only for input operations
Q8mcq1 mark
Cache memory is placed between the CPU and RAM mainly to:
Reduce the speed gap between the CPU and main memory by storing frequently used data ✓
Permanently store the operating system
Replace the need for secondary storage
Convert analog signals into digital form
Q9mcq1 mark
In terms of speed and closeness to the CPU, which correctly orders memory from fastest/closest to slowest/farthest?
Registers -> Cache -> Primary Memory -> Secondary Memory ✓
Secondary Memory -> Primary Memory -> Cache -> Registers
Cache -> Registers -> Secondary Memory -> Primary Memory
Primary Memory -> Registers -> Cache -> Secondary Memory
Q10mcq1 mark
1 KB (kilobyte) is equal to how many bytes?
1024 ✓
1000
1024000
100
Q11mcq1 mark
How many kilobytes (KB) are there in 4 megabytes (MB)?
4096 ✓
4000
4194304
400
Q12mcq1 mark
Which of the following correctly orders memory units from smallest to largest?
Byte, KB, MB, GB ✓
KB, Byte, MB, GB
GB, MB, KB, Byte
MB, KB, Byte, GB
Q13mcq1 mark
A hard disk drive (HDD) is an example of:
Secondary storage ✓
Primary memory
An input device
A processing unit
Q14mcq1 mark
Which of these best explains why data in RAM is lost when the computer is switched off, but data on a hard disk is not?
RAM is volatile while the hard disk is non-volatile storage ✓
RAM is larger in capacity than the hard disk
The hard disk is directly connected to the CPU while RAM is not
RAM stores only software while the hard disk stores only hardware instructions
Q15mcq1 mark
8 bits together form one:
Byte ✓
Nibble
Word
Kilobyte