Computer Literacy — Basics Quiz

Question 1

What is the full form of CPU?‌​‍

Accepted Answer

Central Processing Unit — CPU stands for Central Processing Unit. ‌​‍It is the 'brain' of the computer that performs arithmetic and logical operations.

Answer

Computer Personal Unit

Answer

Central Program Utility

Answer

Computer Processing Unit

Question 2

How many bytes are in 1 Kilobyte (KB)?‌​‍

Accepted Answer

1024 bytes — 1 KB = 1024 bytes (2¹⁰). Computers use binary (powers of 2), not decimal.‌​‍

Answer

1000 bytes

Answer

512 bytes

Answer

2048 bytes

Question 3

Which type of memory is RAM?‌​‍

Accepted Answer

Volatile memory — RAM (Random Access Memory) is volatile — it loses all data when the computer is turned off. ‌​‍ROM is non-volatile.

Answer

Permanent memory

Answer

Read-only memory

Answer

Optical memory

Question 4

Who invented the World Wide Web (WWW)?‌​‍

Accepted Answer

Tim Berners-Lee — Tim Berners-Lee invented the World Wide Web in 1989 at CERN (European Organisation for Nuclear Research).‌​‍

Answer

Bill Gates

Answer

Steve Jobs

Answer

Mark Zuckerberg

Question 5

Which keyboard shortcut is used to 'Undo' an action?‌​‍

Accepted Answer

Ctrl + Z — Ctrl + Z = Undo. Ctrl + Y = Redo. Ctrl + X = Cut. Ctrl + U = Underline.‌​‍

Answer

Ctrl + Y

Answer

Ctrl + U

Answer

Ctrl + X

Question 6

What technology did the first generation of computers primarily use?‌​‍

Accepted Answer

Vacuum Tubes — First generation computers (1940-1956) used vacuum tubes. ‌​‍ENIAC was the first general-purpose electronic computer.

Answer

Transistors

Answer

Integrated Circuits

Answer

Microprocessors

Question 7

Who introduced the '@' symbol in email?‌​‍

Accepted Answer

Ray Tomlinson — Ray Tomlinson introduced the @ symbol in email addresses in 1971. ‌​‍He is credited with inventing network email.

Answer

Tim Berners-Lee

Answer

Bill Gates

Answer

Larry Page

Question 8

What is the file extension for MS Excel documents?‌​‍

Accepted Answer

.xlsx — .xlsx is the file extension for MS Excel. ‌​‍.docx = Word, .pptx = PowerPoint, .pdf = Portable Document Format.

Answer

.docx

Answer

.pptx

Answer

.pdf

Question 9

Who created Linux?‌​‍

Accepted Answer

Linus Torvalds — Linus Torvalds created Linux in 1991. ‌​‍It is an open-source operating system. Android is based on the Linux kernel.

Answer

Steve Wozniak

Answer

Dennis Ritchie

Answer

James Gosling

Question 10

Who founded Google?‌​‍

Accepted Answer

Larry Page and Sergey Brin — Larry Page and Sergey Brin founded Google in 1998 while they were PhD students at Stanford University.‌​‍

Answer

Jeff Bezos and Elon Musk

Answer

Bill Gates and Paul Allen

Answer

Steve Jobs and Steve Wozniak

Question 11

What is the smallest unit of data in a computer?‌​‍

Accepted Answer

Bit — A Bit (Binary Digit) is the smallest unit of data, having a value of either 0 or 1. ‌​‍A Byte = 8 bits.

Answer

Byte

Answer

Nibble

Answer

Kilobyte

Question 12

When was the internet made available to the public in India?‌​‍

Accepted Answer

15 August 1995 — VSNL (Videsh Sanchar Nigam Limited) launched public internet service in India on 15 August 1995.‌​‍

Answer

26 January 1995

Answer

1 January 1996

Answer

15 August 1997

Question 13

Which of these is NOT an input device?‌​‍

Accepted Answer

Printer — Printer is an output device — it produces output from the computer. ‌​‍Keyboard, Mouse, and Scanner send data TO the computer (input).

Answer

Keyboard

Answer

Mouse

Answer

Scanner

Question 14

What is the full form of HTML?‌​‍

Accepted Answer

Hyper Text Markup Language — HTML = HyperText Markup Language. ‌​‍It is the standard language for creating web pages.

Answer

High Tech Modern Language

Answer

Hyper Transfer Markup Language

Answer

Home Tool Markup Language

Question 15

Which symbol must every formula in MS Excel begin with?‌​‍

Accepted Answer

= (equals) — In Excel, every formula must begin with the = (equals) sign. ‌​‍For example: =SUM(A1:A10), =AVERAGE(B1:B5).

Answer

+ (plus)

Answer

# (hash)

Answer

@ (at)

Computer Literacy — Basics Quiz