Computing

Question 1

1A 32-bit address bus can address a maximum of

Hard

A. 32 GB B. 2 GB C. 4 GB of memory D. 64 KB

Question 2

2The memory address register holds

Hard

A. the instruction count B. the data itself C. the result of calculations D. the address of data to be accessed

Question 3

3Which part of the CPU carries out arithmetic and logical operations?

Easy

A. program counter B. memory address register C. control unit D. arithmetic logic unit

Question 4

4The instruction currently being decoded is held in the

Medium

A. program counter B. current instruction register (CIR) C. MAR D. accumulator

Question 5

5The accumulator is a register that

Easy

A. stores files B. holds the next instruction address C. holds the results of ALU calculations D. controls the screen

Question 6

6A multi-core processor improves performance by

Hard

A. executing several instructions in parallel B. cooling faster C. storing more files D. increasing RAM

Question 7

7Which memory loses its contents when the power is switched off?

Easy

A. hard disk B. flash drive C. ROM D. RAM

Question 8

8A multi-core processor

Easy

A. has more RAM B. has a bigger screen C. uses vacuum tubes D. has more than one processing unit on a chip

Question 9

9The MAR holds the

Easy

A. result of a calculation B. current instruction C. data being transferred D. address of the memory location being accessed

Question 10

10In the fetch–decode–execute cycle, the address of the next instruction is held in the

Hard

A. ALU B. program counter C. MDR D. accumulator