Computer Architecture - MCQs Online Quiz

Computer Architecture - MCQs Online Quiz. Find the most important and more conceptual multiple-choice questions (MCQs) with answers of Computer, ICS Part 1 Chapter No.5: Computer Architecture, for the interview and final examinations of intermediate for all boards of Pakistan and entry test for admission in universities i.e., ECAT.

 

We tried our best to provide the most important and best multiple-choice questions (MCQs) from this chapter named Computer Architecture. This post covers the topics i.e., the basic architecture of the computer, control unit, arithmetic & logic unit, CPU registers, RAM (DRAM, SRAM), cache memory, general-purpose registers, special-purpose registers, segment registers, fetch decode and execute the instructions.

 

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➤ Computer Architecture - Short Questions
➤ Applications and Uses of Computer - Short Questions
➤ Applications and Uses of Computer - MCQs Set-1
➤ Applications and Uses of Computer - MCQs Set-2
➤ Data Communication - MCQs 
➤ Data Communication - Short Questions
➤ Information Networks - Short Questions
➤ Information Networks - MCQs

Chapter 5: Computer Architecture

MCQs | Online Quiz

 

1. A circuit that generates signals to direct the entire computer to carry out some tasks?
   1.   CU
   2.   ALU
   3.   cache
   4.   none of these
2. A platter in hard disk is divided into concentric divided into concentric circles called?
   1.   track
   2.   sector
   3.   partition
   4.   none of these
3. A small computer on single chip is known as?
   1.   CU
   2.   ALU
   3.   microcontroller
   4.   microprocessor
4. All components of computer are attached on a circuit board called?
   1.   CPU
   2.   CU
   3.   motherboard
   4.   none of these
5. Each instruction for CPU is divided into?
   1.   operation code
   2.   address of operand
   3.   instruction type
   4.   opcode + address of operand
6. For storing address of next instruction to be fetched, ___ register is used?
   1.   PC
   2.   IR
   3.   MAR
   4.   stack pointer
7. For storing data coming from or going to main memory, the register used by CPU is?
   1.   PC
   2.   IR
   3.   MBR
   4.   data register
8. If memory location is to be read, CPU places address in?
   1.   PC
   2.   IR
   3.   MAR
   4.   none of these
9. In a byte, extreme left bit is called?
   1.   most significant bit
   2.   least significant bit
   3.   MSB + LSB
   4.   none of these
10. In a byte, extreme right bit is called?
    1.   most significant bit
    2.   least significant bit
    3.   MSB + LSB
    4.   none of these
11. Normally the size of general-purpose register is?
    1.   8 bits
    2.   16 bits
    3.   24 bits
    4.   32 bits
12. The assembly language code is converted into machine code by?
    1.   compiler
    2.   assembler
    3.   interpreter
    4.   all of these
13. The access time for any part of main memory is?
    1.   different
    2.   equal
    3.   may be same
    4.   none of these
14. The address registers are always used with combination to which register?
    1.   instruction pointer
    2.   data index
    3.   stack index
    4.   all of these
15. The bus controller uses ___ command to indicate grant of bus to a device?
    1.   bus allows
    2.   bus permitted
    3.   bus grant
    4.   bus given
16. The CPU or other components of computer can access a memory location through?
    1.   address
    2.   value
    3.   name
    4.   none of these
17. The data form stack can be stored or retrieved in which order?
    1.   last in first out
    2.   first in first out
    3.   first in last out
    4.   last in first out + first in last out
18. The direct connection of all I/O devices with system bus is not possible because?
    1.   each device has different organization
    2.   each device has different data transfer rate
    3.   each device has different data format
    4.   all of these
19. The features of an operating include?
    1.   memory management
    2.   manage hardware resources
    3.   data security
    4.   all of these
20. The instructions like LOAD, STORE are examples of?
    1.   zero address instruction
    2.   one address instruction
    3.   two address instruction
    4.   three address instruction
21. The time it takes to reach required sector after reaching the desired track in hard disk is called?
    1.   seek time
    2.   rotational delay
    3.   access time
    4.   none these
22. The type of RAM which does not require refreshing to store or retrieve data?
    1.   SRAM
    2.   DRAM
    3.   SRAM + DRAM
    4.   none of these
23. The time used to move the head to appropriate track after reading address in hard disk is called?
    1.   seek time
    2.   rotational delay
    3.   access time
    4.   none these
24. To handle I/O operations which of the following technique is used?
    1.   interrupts
    2.   MDA
    3.   interrupts + MDA
    4.   none of these
25. What will happen when an instruction is loaded into main memory?
    1.   Its address is loaded into PC
    2.   control is given to CPU
    3.   CPU executes the instruction
    4.   all of these
26. Which of the following code can run directly on microprocessor?
    1.   object code
    2.   machine code
    3.   source code
    4.   all of these
27. Which of the following address register store the base address of the segment containing all memory variables?
    1.   code segment
    2.   data segment
    3.   stack segment
    4.   extra segment
28. Which of the following components of computer architecture convert data from input devices to information by processing it?
    1.   CPU
    2.   memory
    3.   I/O unit
    4.   none of these
29. Which of the following information is sent to address bus for communication?
    1.   address of data
    2.   address of device
    3.   name of device
    4.   address of data + address of device
30. Which of the following is disadvantage of using interrupts by I/O unit?
    1.   running processes are paused
    2.   CPU performance gets down
    3.   running processes are paused + CPU performance gets down
    4.   none of these
31. Which of the following is general purpose register?
    1.   accumulator register
    2.   base register
    3.   counter register
    4.   all of these
32. Which of the following is a special purpose register?
    1.   MBR
    2.   IR
    3.   MAR
    4.   all of these
33. Which of the following is an advantage of using DMA by I/O unit?
    1.   easier implementation
    2.   improved performance of CPU
    3.   overall-cost is cheap
    4.   all of these
34. Which of the following is faster memory?
    1.   RAM
    2.   register
    3.   hard disk
    4.   cache
35. Which of the following is not a kind of register?
    1.   accumulator
    2.   math coprocessor
    3.   segment
    4.   flag
36. Which of the following is not a type of RAM?
    1.   PRAM
    2.   SRAM
    3.   DRAM
    4.   none of these
37. Which of the following is used to temporary store frequently used data by CPU to improve its efficiency?
    1.   hard disk
    2.   RAM
    3.   cache
    4.   register
38. Which of the following register is used for manipulating or processing blocks of main memory?
    1.   special purpose
    2.   general purpose
    3.   segment
    4.   all of these
39. Which of the following technique involves CPU for I/O operation?
    1.   interrupts
    2.   DMA
    3.   interrupts + DMA
    4.   none of these
40. Which of the following type of bus is unidirectional?
    1.   control
    2.   data
    3.   address
    4.   control + address
41. Which of the following type of instruction formats results in long instructions?
    1.   zero address
    2.   one address
    3.   two address
    4.   three address
42. Which of the following general-purpose register is suitable when repetition of tasks is required?
    1.   AX
    2.   BX
    3.   CX
    4.   DX