What does MS stand for in MS Office?

MS stands for Microsoft, the company that develops the Office suite including Word, Excel, and PowerPoint.

What does NOS mean in computing?

NOS stands for Network Operating System, which manages network resources and allows multiple computers to communicate.

Which components are part of the CPU?

The CPU consists of the Arithmetic Logic Unit (ALU), Control Unit, and registers that process instructions and data.

What is the shortcut key to close a document in MS Word?

The shortcut key to close a document in MS Word is Ctrl + W.

What does VOIP stand for?

VOIP stands for Voice Over Internet Protocol, which allows voice communication over the internet.

What does HTTPS mean?

HTTPS stands for Hyper Text Transfer Protocol Secure, a secure version of HTTP used for safe web browsing.

What is DMA in computers?

DMA stands for Direct Memory Access, a process that allows hardware to access memory directly without CPU intervention.

Who is known as the father of the computer?

Charles Babbage is known as the father of the computer for inventing the concept of a programmable computing machine.

What does Email stand for?

Email stands for Electronic Mail, a system for sending messages electronically over the internet.

Which company is the largest in microprocessors?

Intel is one of the largest and most influential companies in the microprocessor industry.

What is the main function of RAM?

RAM (Random Access Memory) temporarily stores data and instructions for the CPU to access quickly during processing.

What is ROM in a computer?

ROM (Read Only Memory) is non-volatile memory that permanently stores critical system instructions.

What is the full form of URL?

URL stands for Uniform Resource Locator, the address used to access websites on the internet.

What is the main purpose of an operating system?

An operating system manages computer hardware, provides a user interface, and enables software applications to run.

Which is the primary input device for a computer?

The keyboard is the primary input device for entering data and commands into a computer.

What is the function of a modem?

A modem converts digital data from a computer into analog signals for transmission over telephone lines and vice versa.

What is the difference between software and hardware?

Hardware refers to physical components of a computer, while software is a collection of programs and instructions executed by the hardware.

What is the full form of PDF?

PDF stands for Portable Document Format, a file format used to present documents independent of software and hardware.

Which shortcut key is used to copy text?

The shortcut key to copy text is Ctrl + C.

Which device is used to display computer output?

A monitor is used to display the output from a computer visually.

What is the full form of BIOS?

BIOS stands for Basic Input Output System, which initializes hardware during the booting process of a computer.

What is a compiler in computer programming?

A compiler is a software that converts high-level programming code into machine language executable by a computer.

What is cloud computing?

Cloud computing provides on-demand computing services and storage over the internet, allowing access from anywhere.

What is the difference between HTTP and HTTPS?

HTTP is an unsecured protocol for web communication, whereas HTTPS is secure and encrypts data transmitted between browser and server.

What is an IP address?

An IP address is a unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.

What is the difference between LAN and WAN?

LAN (Local Area Network) covers a small area like an office, while WAN (Wide Area Network) spans large geographic areas like cities or countries.

What is the function of a router?

A router connects multiple networks, directs data packets between devices, and manages traffic on the network.

What is the meaning of AI in computer science?

AI stands for Artificial Intelligence, a field of computer science that enables machines to simulate human intelligence and decision-making.

A database is an organized collection of data that can be easily accessed, managed, and updated using database management systems (DBMS).

Malware is malicious software designed to damage, disrupt, or gain unauthorized access to computer systems.

What is the function of a firewall?

A firewall protects a computer network by monitoring and controlling incoming and outgoing network traffic based on security rules.

What is a spreadsheet software?

Spreadsheet software like MS Excel is used to organize, calculate, and analyze data in rows and columns.

What is the difference between primary and secondary memory?

Primary memory (RAM) is fast and temporary, while secondary memory (hard drives, SSDs) is slower but permanent for long-term storage.

What is the function of a printer?

A printer is an output device that converts digital documents into physical paper copies.

What is phishing in cybersecurity?

Phishing is a cyber attack method where attackers trick users into revealing sensitive information such as passwords or credit card numbers.

What is the difference between analog and digital signals?

Analog signals are continuous waves representing information, while digital signals use discrete binary values (0s and 1s) for data transmission.

What is a web browser?

A web browser is software that allows users to access, retrieve, and view information on the internet, such as Chrome, Firefox, or Edge.

What is the use of a search engine?

A search engine helps users find information on the internet by indexing websites and returning relevant results based on keywords.

What is the full form of URL?

URL stands for Uniform Resource Locator, which specifies the address of a resource on the internet.

What is the function of a keyboard?

A keyboard is an input device used to enter text, numbers, and commands into a computer.

What is the purpose of a mouse in a computer?

A mouse is an input device used to point, select, drag, and interact with items on a computer screen.

What is the use of antivirus software?

Antivirus software protects computers from viruses, malware, and other malicious programs by scanning and removing threats.

Computer 1000 Important MCQs 2026 PDF from Past Papers

Download PDF Click here

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1	100 Most Repeated Computer MCQs	2	MS Excel
3	MS Word	4	MS PowerPoint
5	MS Access	6	MS Office
7	Computer Shortcut Keys	8	Internet related Information
9	Internet and Social Media	10	Information Technology (IT)
11	Use of AI	12	Computer Basic Hardware Components
13	Important Abbreviations (Computer)	14	Computer Short Questions
15	Use of Mobile Apps

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Computers use which language to process data?

Megabyte
Binary
Processing
Representational
All of these

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