Thursday, February 4, 2021





1. ______is used by the CPU to communicate with devices that are contained within the computer, through physical connections such as cable or printed circuits.

a) Bus

 b) Control Bus

 c) Program 

d) Stack pointer

2. Microprocessors as switching devices are for ______ generation.

Ans. Fourth

3. In a computer most processing takes place in_____

Ans. CPU

4. Large scale integration is used in _____ Processor.

Ans. Memory

5. The number of pins in 8085 microprocessor is _____

Ans. 40 pins

6. Memory location in INTEL 8085 microprocessor has ______ numbers.

Ans. 65536

7. The sign Flag sets in 8085 when ______.

Ans. 16 bits

8. The five Flip –Flop set in 8085 is called _____.

Ans. Flap

9. In 8085 there are _____ General purpose registers.

Ans. 6

10. The part of micro-processor which performs number crunching and logical comparisons is called _______ .

(a) Arithmetic and Logic Unit (ALU)

(b) Register

(c) Cache

(d) timer

11. ALU stands for ______.

(a) Arithmetic and Logic University 

(b) Arithmetic and Local Unit

(c) Arithmetic and Logic Unit 

(d) Analysis and Logic Unit

12. The part of micro-processor used for storing values needed for next cycle of processing is called ______ .

(a) Arithmetic and Logic Unit (ALU)

(b) Register

(c) clock

(d) timer

13. The part of micro-processor holding data which is needed for forthcoming cycles of processing is called ______ .

(a) Arithmetic and Logic Unit (ALU)

(b) Register

(c) Cache

(d) timer

14. The part of micro-processor which maintains a clock and induces each cycle of processing through a pulse is called ______.

(a) Arithmetic and Logic Unit (ALU)

(b) Register

(c) Cache

(d) timer

15. The number of floating point operations carried out by a micro-processor in one second is called ______.

(a) FLOPS 

(b) timer

(c) clock 

(d) frequency

16. The number of cycles of operations performed by a processor per second is called its _____.

(a) bus speed

(b) connection speed

(c) clock speed

(d) baud rate

17. Whereas clock speed is the gross number of operations performed by a processor per second, FLOPS represents ________ of processor per second.

(a) wasted time

(b) effective out turn

(c) wasted cycles

(d) clock speed

18. A floating point operation may require ______ clock cycle to complete.

(a) just one

(b) less than one

(c) zero

(d) more than one

19. Intel Pentium processor was preceded by Intel processor.

(a) Core 2 duo 

(b) 80486/ 486

(c) Core i3 

(d) Core i5

20. Which is an internal power supply units of CPU?




 D Stablizer

21. From the following which is known as the administrative section of the computer system?

a) Control Unit

b) Input Unit

c) RAM

d) Central Processing Unit

22. Component of CPU which is responsible for comparing the contents of two pieces of data is

a) ALU

b) CU

c) Memory

d) Register

23. When arithmetic, logic and control unit of a computer are combined into a single unit, it is known as

a) Central processing unit

b) memory unit

c) I/O unit

d) Operating unit

24. Brain of a computer is called

a) CPU

b) Software

c) Herd disk

d) Memory

25. A CPU contains

a) A card reader & a printing device

b) An analytical engine & a control unit

c) A control unit & an arithmetic logic unit

d) None of these

26. Movement of signals between CPU & I/O is

a) ALU

b) Control unit

c) Memory unit

d) Secondary storage

27. The part of the CPU that access & decodes program instructions, & coordinates the flow of data among various system components is the

a) Control unit 

b) ALU

c) Megahertz 

d) Motherboard

28. What does CPU stands for

a) Central processing unit 

b) Central process unit

c) Central printing unit 

d) Central peripheral unit

29. CPU consists of following parts

a) CU and main memory

b) CU and ALU

c) Main memory and storage

d) Operating system and application

30. Input is modified into output by

a) peripherals

b) Memory

c) CPU

d) Storage

31. Part of CPU which coordinates all functions of computer & other components

a) Mother board

b) Coordination board

c) Control unit

d) ALU

32. The function of CPU is

a) To provide external storage of text

b) To communicate with the operator

c) Ro read, interpret & process the information & instructions

d) Assembler

33. This components is required to process data into information & consist of integrated circuits

a) CPU

b) Hard disk

c) RAM

d) ROM

34. Memory unit is one part of

a) Control unit

b) CPU

c) Input device

d) Output device

35. _____ is the common name of IC

Ans. Chip

36. A device, which is not connected to CPU is called as ________ device.

a) Offline

 b) Online

c) off device

 d) not working

37. The technology that stores only the essential instructions on a microprocessor chip and thus enhances its speed is referred to as______


 b) ALU

c) Logo 

d) Command

38. The amount of time taken to complete a process is called _____

a) Turnaround Time

b) Processing Time

c) Process Time

d) Working Time

39. CPU reads secondary memory from _____ memory.

a) Main

b) ROM

c) Hard Disk

d) Cache

40. CPU is expanded as _______.

(a) Central Power Unit

(b) Critical Processing Unit

(c) Central Processing Unit

(d) Cerebral Processing Unit

41. ______ is called the "Brain of Computer".

(a) CPU 

(b) monitor

(c) keyboard

 (d) mouse

42. In the CPU of a computer, _______ delivers power supply to all the components at appropriate voltages.

(a) Hard Disk

(b) Mother Board

(c) Switch Mode Power Supply (SMPS)

(d) DVD drive

43. Parts of CPU are

a) ALU, CU, MU 

b) ALU, peripherals, memory


 d) ALU, RAM, Heetson


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