Computer GK MCQs

1.       Which one of the following is not an Operating System ?

(A) IBM AIX                   (B) Linux

(C) Sun Solaris                        (D) Firefox

Answer: D

2.       Which of the following represents one billion characters?

(A) Terabyte                  (B) Kilobyte

(C) Megabyte                (D) Gigabyte

Answer: D

Explanation:

One million=1,000,000

one billion=1,000,000,000=1000³

1 byte may hold 1 character

1000 bytes=1 kilobyte

1000² bytes=1 megabyte

1000³ bytes=1 gigabyte

3.       Which one of the following represents the binary equivalent of the decimal number 25?

(A) 11011          (B) 10101

(C) 01101          (D) 11001

Answer: D

4.       Encoding or scrambling data for transmission across a network is known as:

(A) Decryption              (B) Protection

(C) Detection                (D) Encryption

Answer: D

5.       When a file contains Instructions that can be carried out by the Computer, it is often called a(n) ………….. file.

(A) data                          (B) Information

(C) executable             (D) application

Answer: C

6.       Computers use the …………. number system to store data and perform calculations.

(A) octal             (B) hexadecimal

(C) binary          (D) decimal

Answer: C

7.       ……………… helps in capturing row data and entering into Computer System.

(A) CPU                         (B) Integrated Circuit

(C) Input device           (C) Motherboard

Answer: C

8.       This technology allows a phone call to be routed over network wires.

(A) VOIP                                    (B) teleconferencing

(C) video-conferencing          (D) None of these

Answer: A

9.       Which is an instant messenger that is used for chatting?

(A) Google Talk            (B) AltaVista

(C) MAC                                    (D) Microsoft Office

Answer: A

10.    Which of the following is not an output device?

(A) Keyboard                (B) Printer

(C) Speaker                  (D) Monitor

Answer: A