Latest Computers General Knowledge(GK) Questions and answers

1 .

Select the smallest memory size ?

A)

Peta Byte

B)

Terabyte

C)

Kilobyte

D)

Gigabyte

Correct Answer : Option (C) - Kilobyte

1. Byte

2. Kilo Byte

3. Mega Byte

4. Giga Byte

5. Tera Byte

6. Peta Byte

7. Exa Byte

8. Zetta Byte

9. Yotta Byte

2 .

Compilers and Interpreters are themselves ?

A)

Programs

B)

Mnemonics

C)

Codes

D)

None of the above

Correct Answer : Option (A) - Programs

Compilers and interpreters are themselves Programs.

In computer science, an interpreter is a computer program that directly executes, i.e. performs, instructions written in a programming or scripting language, without requiring them previously to have been compiled into a machine language program.

Difference Between Interpreter and Compiler. We generally write a computer program using a high-level language. ... Hence, a compiler or an interpreter is a program that converts program written in high-level language into machine code understood by the computer.

An interpreter is a computer program which executes a statement directly. ... Compiler scans the entire program once and then converts it into machine language which can then be executed by computer's Page on processor.in short compiler translates the entire program in one go and then executes it.

3 .

What is the number of bit patterns provided by a 7 bit code?

A)

64

B)

128

C)

256

D)

512

Correct Answer : Option (B) - 128

Number of bit patterns provided by a 7 bit code 2^7=128. It is based on Binary Number System (0 or 1).

4 .

In present-day computing, which code is used and is accepted worldwide?

A)

ISCII

B)

ASCII

C)

EBCDIC

D)

Hollerith Code

Correct Answer : Option (B) - ASCII

American Standard Code for Information Interchange (ASCII) is the predominant character set encoding of present-day computers. ASCII codes represent text in computers, telecommunications equipment, and other devices. Most modern character-encoding schemes are based on ASCII, although they support many additional characters.

5 .

In operating system, Round Robin Scheduling means :

A)

Repetition policy

B)

A process allocation policy

C)

A memory allocation policy

D)

A kind of scheduling

Correct Answer : Option (D) - A kind of scheduling

Round robin is the scheduling algorithm used by the CPU during execution of the process . Round robin is designed specifically for time sharing systems . It is similar to first come first serve scheduling algorithm but the preemption is the added functionality to switch between the processes.

6 .

The fastest, costlier and relatively small form of storage managed by computer system hardware is :

A)

Main memory

B)

Flash Memory

C)

Cache

D)

Disk

Correct Answer : Option (C) - Cache

Cache memory, also called CPU memory, is random access memory (RAM) that a computer microprocessor can access more quickly than it can access regular RAM. Cache is the fastest and most costly form of storage. For example, Level 1 (L1) cache is extremely fast but relatively small, and is usually embedded in the processor chip (CPU). Cache memory is volatile and managed by the computer system hardware.

7 .

After â€˜PROMâ€™ is programmed, we can only ____ the information.

A)

read

B)

write

C)

remove

D)

read and write

Correct Answer : Option (A) - read

PROM (Programmable Read-Only Memory) is a memory chip on which data can be written only once. Once it is programmed, data is permanent and it cannot be erased. The information is stored permanently in the memory cell. We can only read that data but cannot write data on it.

8 .

The two specific heats of gases are related by :

A)

Cp /Cv = R

B)

Cp â€“ Cv = RJ

C)

Cp + Cv = RJ

D)

Cp â€“Cv = R/J

Correct Answer : Option (D) - Cp â€“Cv = R/J

There are two specific heats of gases- Specific Heat at Constant Pressure (Cp) and Specific Heat at Constant Volume (Cv). Heat supplied at constant pressure is used up in two ways: (a) for doing work in expansion and (b) for raising the temperature by 1o C, while at constant volume heat supplied is used only for rise of temperature. Therefore, Cp is always greater than Cv. They are related as: Cp-Cv = R/J. This relation is called Mayer’s Relation.

9 .

Rearranging and allocating space in memory to provide for multiple computing tasks is called

A)

Multitasking

B)

Memory Management

C)

Networking

D)

Multiprogramming

Correct Answer : Option (B) - Memory Management

Memory management provides ways to dynamically allocate portions of memory to programs at their request, and free it for reuse when no longer needed. It enables the allocation of additional memory space or release of unwanted space at run time for optimizing the use of storage space. It provides flexibility in adding, deleting or rearranging data items at run time.

10 .

Which application is used for accessing the information on internet?

A)

web browser

B)

Microsoft word

C)

system software

D)

operating system

Correct Answer : Option (A) - web browser

A web browser is a software application for accessing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier (URL). The major web browsers are Firefox, Internet Explorer, Google Chrome, Opera, etc.