Deck 1: Data Storage

Question 1

Which of the following instructions (as described in the language description table) changes the contents of a memory cell?

A) 10AB
B) 20AB
C) 30AB
D) 40AB

Answer 1

C

Question 2

Which of the following instructions (as described in the language description table) changes the contents of register 7?

A) 4077
B) 4075
C) 4057
D) 37BB

Answer 2

C

Question 3

Which of the following instructions will not produce the same result as the other two? (Refer to the language description table.)

A) 9555
B) 2500
C) 1500

Answer 3

C

Question 4

In which of the following locations is information most readily available for manipulation by the CPU?

A) Cache memory
B) Main memory
C) Mass storage
D) General-purpose registers

Question 5

Which of the following instructions (as described in the language description table) places 00000000 in register 5?

A) 25FF
B) 9555
C) 15FF
D) 8555

Question 6

If register A contained the pattern 00000000, which of the following instructions could alter the contents of register 0? (Refer to the language description table.)

A) 700A
B) 800A
C) 900A

Question 7

Which of the following instructions will not produce the same result as the other two? (Refer to the language description table.)

A) A502
B) A506
C) A50A

Question 8

Which of the following is not a form of parallel processing?

A) SISD
B) MIMD
C) SIMD

Question 9

What mask in register F would cause the instruction 7AAF (refer to the language description table) to put a 1 in the most significant bit of register A without disturbing the other bits?

A) 11111110
B) 00000001
C) 10000000
D) 011111111

Question 10

Which of the following instructions (as described in the language description table) will not change the contents of register 5?

A) 1508
B) 2508
C) A503
D) A508

Question 11

Which of the following instructions falls in the category of data transfer instructions?

A) LOAD
B) AND
C) ROTATE
D) JUMP

Question 12

Which of the following instructions (as described in the language description table) is equivalent to requesting that register A be rotated to the left by three bits?

A) AA₀5
B) AA₀3
C) AA₀8
D) AA₀1

Question 13

Which of the following is not a component of a machine instruction?

A) Op-code
B) Port
C) Operand

Question 14

The bus in a computer is an example of which form of communication?

A) Serial
B) Parallel
C) Neither A nor B

Question 15

Which of the following is not contained in a CPU?

A) Instruction register
B) Program counter
C) General-purpose register
D) Memory cell

Question 16

What mask in register F would cause the instruction 8AAF (refer to the language description table) to put a 0 in the most significant bit of register A without disturbing the other bits?

A) 11111110
B) 00000001
C) 10000000
D) 011111111

Question 17

Which of the following is not an activity performed entirely within a CPU?

A) Fetch instructions
B) Perform Boolean operations
C) Perform arithmetic operations
D) Move data between registers

Question 18

Which of the following instructions (as described in the language description table) is essentially an unconditional jump?

A) B033
B) B₁33
C) B₂33
D) B333

Question 19

Which of the following instructions (as described in the language description table) places 00000000 in register A?

A) 1A₀0
B) 2A₀0
C) 3A₀0
D) 200A

Question 20

Which of the following instructions does not fall in the category of arithmetic/logic instructions?

A) ROTATE
B) ADD
C) OR
D) JUMP

Question 21

What is used to differentiate memory used for instructions and memory used for data?

Question 22

Which step of the machine cycle examines the op-code of the next instruction to be executed?

A) Load
B) Fetch
C) Decode
D) Execute

Question 23

Explain the concept of throughput and techniques by which throughput is increased.

Question 24

The following is a routine encoded in the machine language described in the language description table. Explain (in a single sentence) what the routine does. (Explain what the entire routine does as a unit rather than reciting what each instruction does.)

Question 25

The following is a routine encoded in the machine language described in the language description table. Explain (in a single sentence) what the routine does. (Explain what the entire routine does as a unit rather than reciting what each instruction does.)

Question 26

Below is a short routine written in the machine language described in the language description table and stored in a machine's memory beginning at address 50. What must be in the memory cell at address 40 to avoid an unending loop? ________________________________________

Question 27

The following table shows a portion of a machine's memory containing a program written in the language described in the language description table. What will happen if the machine is started with its program counter containing 00?

Question 28

An ARM based processor is an example of what kind of computer architecture?

A) DSL
B) CISC
C) RISC
D) Pentium

Question 29

Suppose the instruction B₁A5 (as described in the language description table) is stored in main memory at addresses E0 and E1. Moreover, suppose registers 0 and 1 contain the patterns FF and 75, respectively. What value will be in the CPU's program counter immediately after executing the instruction?
____________

Question 30

What is the difference between a conditional jump instruction and an unconditional jump instruction?

Question 31

Describe the machine cycle.