Computers Questions and Answers

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Q1
Which of the following is not a basic element within the microprocessor?
  • A Microcontroller
  • B Arithmetic logic unit (ALU)
  • C Register array
  • D Control unit
Answer: Option A
Q2
Which method bypasses the CPU for certain types of data transfer?
  • A Software interrupts
  • B Interrupt-driven I/O
  • C Polled I/O
  • D Direct memory access (DMA)
Answer: Option D
Q3
Which of the following is not an enhancement to the Pentium that was unavailable in the 8086/8088?
  • A "Pipelined" architecture
  • B Expansion of cache memory
  • C Inclusion of an internal math coprocessor
  • D Data/address line multiplexing
Answer: Option D
Q4
Which bus is bidirectional?
  • A Address bus
  • B Control bus
  • C Data bus
  • D None of the above
Answer: Option C
Q5
DMA is particularly suited for data transfer between the ________.
  • A disk drive and CPU
  • B disk drive and RAM
  • C disk drive and ROM
  • D disk drive and I/O
Answer: Option B
Q6
The first microprocessor had a(n)________.
  • A 1-bit data bus
  • B 2-bit data bus
  • C 4-bit data bus
  • D 8-bit data bus
Answer: Option C
Q7
Which microprocessor has multiplexed data and address lines?
  • A 8086/8088
  • B 80286
  • C 80386
  • D Pentium
Answer: Option A
Q8
Which is not an operand?
  • A Variable
  • B Register
  • C Memory location
  • D Assembler
Answer: Option D
Q9
Which is not part of the execution unit (EU)?
  • A Arithmetic logic unit (ALU)
  • B Clock
  • C General registers
  • D Flags
Answer: Option B
Q10
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

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