Computers - General Questions (2)

Directions to Solve

Computers - General Questions

9.

The first Intel microprocessor to contain on-board cache memory was the ________.

A.	80386
B.	80486
C.	Pentium
D.	Pentium Pro

Answer: Option B

Explanation:

No answer description available for this question.

10.

During a read operation the CPU fetches ________.

A.	a program instruction
B.	another address
C.	data itself
D.	all of the above

Answer: Option D

Explanation:

No answer description available for this question.

11.

Which of the following is not an arithmetic instruction?

A.	INC (increment)
B.	CMP (compare)
C.	DEC (decrement)
D.	ROL (rotate left)

Answer: Option D

Explanation:

No answer description available for this question.

12.

Polled I/O works best when ________.

A.	there are no priority considerations
B.	priority considerations are frequent
C.	the polling rate exceeds 1000 s
D.	the polling rate is below 1000 s

Answer: Option A

Explanation:

No answer description available for this question.

13.

Which of the following was not a design improvement for the 8086/8088 over the 8085?

A.	Execution unit (EU)
B.	16-bit data bus
C.	Arithmetic logic unit (ALU)
D.	Bus interface unit (BIU)

Answer: Option C

Explanation:

No answer description available for this question.

14.

Which of the following is not a jump instruction?

A.	JB (jump back)
B.	JA (jump above)
C.	JO (jump if overflow)
D.	JMP (unconditional jump)

Answer: Option A

Explanation:

No answer description available for this question.

15.

What is occurring when two or more sources of data attempt to use the same bus?

A.	Bus contention
B.	Direct memory access
C.	Bus interruption
D.	PPI

Answer: Option A

Explanation:

No answer description available for this question.

16.

A 20-bit address bus can locate ________.

A.	1,048,576 locations
B.	2,097,152 locations
C.	4,194,304 locations
D.	8,388,608 locations

Answer: Option A

Explanation:

No answer description available for this question.

1
2
3
4