11th Computer Science MCQ’s with Answers Chapter no 5 | 1st Year Computer Science Mcqs

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Chapter 5

Computer Architecture

Encircle the most appropriate answer among the following options  choose which one is correct?

1          Data and programs that are not being use by computer are stored in choose which one is correct?

  • Secondary storage
  • Cache
  • Primary storage
  • printer

2          A set of instructions that run the computer are choose which one is correct?

  • Hardware
  • document
  • CPUs
  • Software

3          The idea of stored program was given by choose which one is correct?

  • Charles Babbage
  • John Leitbiz
  • John Von Neumann
  • Pascal

4          Which one is the brain of computer?

  • RAM
  • CPU
  • Motherboard
  • System unit

5          Which component of a computer decodes and executes program constructions?

  • Main memory
  • Control unit
  • Bus interconnection
  • ALU

6          The component of computer that stores data and program while these are being executed is called choose which one is correct?

  • Main memory
  • Control unit
  • Bus interconnection
  • ALU

7          The component of computer that is used to connect different parts of the computer together is called choose which one is correct?

  • Register
  • I/O unit
  • Bus interconnection
  • CPU

8          A computer drives its basic strength from choose which one is correct?

  • Speed
  • Memory
  • Accuracy
  • All

9          The program that contains instructions to operate a device is called choose which one is correct?

  • Device driver
  • Device Operator
  • Device linking
  • Device system

10        Which component of CPU is responsible for performing arithmetic and logical operations on numeric data?

  • ALU
  • Control unit
  • Register
  • None

11        CPU is an example of choose which one is correct?

  • Software
  • Input unit
  • Hardware
  • Output unit

12        Which is a storage device?

  • CPU
  • Clock
  • Floppy disk
  • Bus

13        Which component of computer coordinates all activities in the computer?

  • ALU
  • Control unit
  • Bus interconnection
  • Reni

14        Registers Which component of computer is responsible for comparison of two numbers?

  • ALU
  • Control unit
  • Memory
  • Hard Disk

15        — is the component of CPU choose which one is correct?

  • Main memory
  • Bus interconnection
  • ALU
  • None

16        CPU includes all of the following components except?

  • Main memory
  • ALU
  • Control unit
  • Registers

17        The cells of memory are logically organized into group of choose which one is correct?

  • 4-bits
  • 5-bits
  • 7-bits
  • 8-bits

18        CPU is an example of choose which one is correct?

  • Software
  • a program
  • Hardware
  • an output unit

19        The address of instruction under the processor execution is contained within choose which one is correct?

  • Program Counter
  • Current Instruction Register
  • Memory address registers
  • Memory Buffer register

20        RAM is a choose which one is correct?

  • Read Only Memory
  • Permanent memory
  • Volatile memory
  • None

 21              is non-volatile memory choose which one is correct?

  • RAM
  • DRAM
  • ROM
  • SRAM

22        ___chips must be refreshed with electric charge periodically?

  • SRAM
  • ROM
  • EEPROM
  • DRAM

23        ROM is choose which one is correct?

  • Read Only Memory
  • Non-volatile
  • Volatile
  • Both a and b

24        —is a type of ROM?

  • PROM
  • EPROM
  • EEPROM
  • All

25        — memories can be re-written by using electrical devices?

  • PROM
  • ROM
  • EEPROM
  • EPROM

26        Which memory is used to increase the processing speed of computer?

  • RAM
  • ROM
  • Cache Memory
  • SRAM

27        Files not being used by computer are stored in choose which one is correct?

  • Secondary storage
  • Cache
  • Primary Storage
  • Registers

28        A set of parallel electrical lines used to transfer data is called choose which one is correct?

  • Monitor
  • Computer Clock
  • 1/O unit
  • Bus

29        The circuit board on which processor and other chips are mounted is called choose which one is correct?

  • Master board
  • Main board
  • Motherboard
  • All

30        The external devices that are connected to a computer are called choose which one is correct?

  • Buses
  • Registers
  • Peripherals
  • Slots

31        A computer drives its basic strength from choose which one is correct?

  • Speed
  • Memory
  • Accuracy
  • ALL of the above

32        The arithmetic and logic unit performs the following operations  choose which one is correct?

  • Controls Computer operations
  • Performs arithmetic functions such as addition and subtraction etc.
  • Performs logical comparisons such as equal, greater than, less than etc.
  • Both b and c

33        How many categories the system bus is divided?

  • 2
  • 3
  • 4
  • 5

34        Which one is not a type of bus?

  • Cache
  • Control bus
  • Address bus
  • Data bus

35        CPU sends command signals to different components of computer through choose which one is correct?

  • Data bus
  • Address bus
  • Control bus
  • All

36        A bus that communicates data between CPU and memory is called choose which one is correct?

  • Data bus
  • Address bus
  • Control bus
  • All

37        — – command is used to write data into memory?

  • 1/O Write
  • Transfer Ask
  • Memory Write
  • 1/0

38        Read Temporary storage area within CPU is called choose which one is correct?

  • Register
  • ALU
  • Bus interconnection
  • Linked code

39        Which one is faster?

  • RAM
  • Cache
  • Register
  • Hard disk

40        Which is not a type of register?

  • Math coprocessor
  • Flag
  • Accumulator
  • Segment

 41       – – registers holds the address of the next instruction to be fetched for execution choose which one is correct?

  • IR
  • PC
  • MAR
  • MBR

42        – – registers holds the address of the next instruction to be fetched for memory choose which one is correct?

  • IR
  • PC
  • MAR
  • MBR

43        Which register holds the address of active memory location that is being currently accessed by the CPU?

  • IR
  • PC
  • MAR
  • MBR

44        Which is a storage device?

  • CPU
  • Clock
  • Floppy disk
  • Bus

45        Which component is responsible for comparing the contents of two pieces of data choose which one is correct?

  • ALU
  • Control Unit
  • Memory
  • None

46        Which register holds the contents of data/instruction read from, or written in memory?

  • IR
  • PC
  • MAR
  • MBR

47               registers acts as counter for looping process?

  • EAX
  • EBX
  • ECX
  • EDX

48              registers is used for arithmetic and data operations?

  • AX
  • BX
  • CX
  • DX

49                registers holds the base location of all executable instructions in the program?

  •  CS
  • DS, SS
  • ES, FS
  • FS, GS

50              registers contains the base location of the current program stack?

  • CS
  • DS
  • ES
  • SS

51.       The size of segment register is choose which one is correct?

  • 2-bytes
  • 2 KB
  • 2 MB
  • 2 bits

52        The program that contains instructions to operate a device is called choose which one is correct?

  • Device driver
  • Device operator
  • Device linking
  • Device system

53        Which component of CPU decodes and executes the programs instructions?

  • Clock
  • CU
  • Cache
  • ALU

54        Which component handles the processor’s communication with its peripheral devices?

  • 1/O Unit
  • Hard Disk
  • Registers
  • CD

55        Which is not a component of a CPU?

  • Clock
  • Register
  • Main Memory
  • Cache

56        The basic unit for data storage is choose which one is correct?

  • Byte
  • Bit
  • TB

  • GB

57        8 Bytes is equal to choose which one is correct?

  • Bit
  • 48 bits
  • 32 Bits
  • 64 bits

58        The process of taking action on the decoded instruction is called choose which one is correct?

  • Decode instruction
  • Execute instruction
  • Activate instruction
  • None

59        The process of decoding the instruction so that the computer can understand it is called choose which one is correct?

  • Decode instruction
  • Execute instruction
  • Translate instruction
  • Fetch instruction

60        The programming languages that are close to human language are called choose which one is correct?

  • High-level
  • Low-level
  • Medium-level
  • Machine

61.       The programming languages that are very close to machine code are called choose which one is correct?

  •  High-level
  • Low-level
  • Medium-level
  • Machine

62        How many types of language translator?

  • 2
  • 4
  • 5
  • 3

63                 is a type of language translator?

  • Compiler
  • Assembler
  • Interpreter
  • All

64        The set of parallel lines to connect to different parts of the computer is called choose which one is correct?

  • Bus
  • Memory
  • 1/O
  • ALL

65                of the above Which register is used for counting purpose?

  • AX
  • CX
  • DX
  • BX

66        Which register is known as Accumulator?

  • AX
  • CX
  • DX
  • BX

67        The program written in assembly language is translated with the help of choose which one is correct?

  • Compiler
  • Assembler
  • Interpreter
  • Decoder

68        The translated program into machine code is called choose which one is correct?

  • Source program
  • Object program
  • System program
  • Application software

69        The output of the compiler is called choose which one is correct?

  • Program
  • Source code
  • Application
  • Object code

70.       The special programs that are used to convert a source code into object code are called choose which one is correct?

  • Language translator
  • Language processor
  • Both a and b
  • Operating system

71        Which is not a general purpose register?

  • EDX
  • EAX
  • EEX
  • EBX

72        The register that holds the current Instruction is called

  • MBR
  • MAR
  • IR
  • PC