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Computer Basics

Description: Computer Fundamentals Computer KnowledgeComputer KnowledgeComputer Basics
Number of Questions: 15
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Which of the following registers holds the instruction code currently being executed?

  1. Memory address register

  2. Base register

  3. Program counter

  4. Instruction register

  5. Stack pointer


Correct Option: D
Explanation:

It holds the instruction code currently being executed.

Which of the following memory types has the fastest speed?

  1. Main memory

  2. Cache memory

  3. Internal memory

  4. Secondary memory

  5. All the memory types have the same speed


Correct Option: C
Explanation:

The internal memory refers to the high-speed register. It is the fastest memory.

Which of the following decodes( interprets) the retrieved (from the program stored in memory) instructions and then send them for further processing?

  1. RAM

  2. Monitor

  3. Motherboard

  4. ALU

  5. CU


Correct Option: E
Explanation:

CU retrieves the instructions using registers one by one from the program, which is stored in the memory. The instructions are interpreted (or decoded) by the control unit itself, and then the decoded instructions are sent to the ALU for processing.

Which of the following is the extension of an image file?

  1. .wps

  2. .wma

  3. .tiff

  4. .asx

  5. .css


Correct Option: C
Explanation:

It is the extension of the image file of Tagged Image File Format.

What is the function of Base Address Register?

  1. It holds the address of the data item to be retrieved from the main memory.

  2. It holds the starting address of the memory stack.

  3. It holds the address of the next instruction to be executed.

  4. It holds the instruction code currently being executed.

  5. It holds the address of the top element of the memory stack.


Correct Option: B
Explanation:

It is done by Base Address Register.

Which of the following is not a derived gate?

  1. OR Gate

  2. XOR Gate

  3. NAND Gate

  4. NOR Gate

  5. None of the above


Correct Option: A
Explanation:

This is not a derived gate, it is a basic gate.

Which of the following constants represents carriage return?

  1. 'a'

  2. ''

  3. ''

  4. ''

  5. '
    '


Correct Option: E
Explanation:

'r' represents carriage return.

Which of the following is a valid numeric constant?

  1. 25,000

  2. 698354L

  3. 7.1e 4

  4. 1.5E+2.5

  5. $255


Correct Option: B
Explanation:

It represents long integer.

Arrange the following characters in ascending order according to their ASCII value.
b, A, (z-A), 0, Z

  1. (z-A), 0, b, A, Z

  2. 0, (z-A), b, A, Z

  3. A,(z-A),0,b,Z

  4. 0, (z-A), A, Z, b

  5. (z-A), 0, A, Z, b


Correct Option: D
Explanation:

The ASCII value of the given characters is as follows.
b=98
A=65
(z-A)=57
0=48
Z=90
So, the correct order isĀ 0, (z-A), A, Z, b. Hence, this option is correct.

Which of the following is incorrect about Windows 95?

  1. Windows 95 was known as Windows 4.0.

  2. It has plug and play features.

  3. It is a 16-bit operating system.

  4. It helps in easier location of system configuration file.

  5. It allows right mouse pointer.


Correct Option: C
Explanation:

It is 32-bit operating system that enables the computer to perform in a faster and more efficient way.

Which of the following is not a type of RAM?

  1. ADRAM

  2. DDR SDRAM

  3. RDRAM

  4. CDRAM

  5. DDRCDRAM


Correct Option: E
Explanation:

It is not a type of RAM.

Which of the following is not a type of ROM?

  1. PROM

  2. EPROM

  3. EEPROM

  4. EEEPROM

  5. Flash EPROM


Correct Option: D
Explanation:

It is not a type of ROM.

Which of the following is the extension of a game file?

  1. .dem

  2. .wsf

  3. .sys

  4. .cfm

  5. .srt


Correct Option: A
Explanation:

It is the extension of Video Game Demo File of the game file.

Which of the following is the representative computer of fourth generation computers?

  1. ENIAC

  2. IBM 7094

  3. IBM 360

  4. Intel's Xeon

  5. Motorola's 68020


Correct Option: E
Explanation:

This representative computer belongs to fourth generation computers.

Which of the following is the example of a Batch operating system?

  1. Windows 98

  2. Windows 2000

  3. MS-DOS

  4. UNIX

  5. LINUX


Correct Option: C
Explanation:

It is the example of Batch operating system.

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