Nowadays, computers play an important role in our everyday lives. Many exams now include a section on basic computer knowledge to test how well candidates understand computer systems and their use. It is important for those preparing for the exam to know these basic computer questions to avoid losing marks. With basic computer knowledge, you can do many tasks easily. Therefore, anyone who wants to enhance their computer knowledge should practice these basic computer questions. Here we are including more than 100 basic computer questions for you which can help your upcoming exams and job interviews..
Answer: CPU stands for Central Processing Unit. It is the primary component of a computer that performs instructions and processes data.
Answer: RAM, or random access memory, is temporary computer memory that is used to store programs or data used by the processor. The data stored in it is automatically flushed when the system shuts down or restarts.
Answer: Hardware is the physical component of a computer that you can see and touch. Like CPU, memory, hard disk, and other internal and peripheral components. Software, on the other hand, is the set of instructions that tells the hardware how to perform tasks and execute programs and data.
Answer: An operating system (OS) is software that manages computer hardware and provides a user interface, enabling users to interact with and run applications on a computer or device
Answer: Windows, macOS, Linux, Android, iOS.
Answer: The motherboard is the main circuit board in a computer. It houses the CPU, memory, and other essential components and provides the electrical connections between them.
Answer: BIOS stands for Basic Input/Output System. It is a firmware that initializes hardware during the boot process and provides a way for the operating system to communicate with the computer’s hardware.
Answer: A peripheral device is an external hardware component that connects to a computer, such as a printer, keyboard, or mouse.
Answer: Input devices are hardware devices that allow users to input data into a computer. Examples include keyboards, mice, and scanners.
Answer: Output devices are hardware devices that display or present information from a computer. Examples include monitors, printers, and speakers.
Answer: A computer file is a digital container or storage unit that holds data or information, such as text, images, programs, or other types of content. It is identified by a unique name and is stored on a computer or other storage devices.
Answer: A computer folder is a digital container used to organize and store files. It serves as a directory or storage location within a computer’s file system. Folders help users categorize and manage their files more efficiently, making it easier to locate and access specific information
Answer: A hard drive, or hard disk drive (HDD), is a primary data storage device used in computers and other electronic devices. It is a non-volatile storage device, meaning it retains data even when the power is turned off
Answer: A Solid-State Drive (SSD) is a type of computer storage device that uses flash memory to store all computer digital data
Answer: USB stands for Universal Serial Bus. It is a standard interface used for connecting various devices, such as external drives, keyboards, and cameras, to a computer.
Answer: A graphics card is a hardware component that handles the rendering of images and videos. It is crucial for displaying graphics on a computer monitor.
Answer: A CPU core is an individual processing unit within a central processing unit. Modern CPUs often have multiple cores, allowing them to handle multiple tasks simultaneously.
Answer: Bandwidth refers to the maximum rate of data transfer across a network or communication channel, often measured in bits per second.
Answer: A firewall is a security system, either hardware or software-based, that monitors and controls incoming and outgoing network traffic based on predetermined security rules
Answer: Cloud computing is a technology model that enables access to computing resources, such as servers, storage, databases, networking, software, and analytics, over the internet (“the cloud”).
Answer: A web browser is a software application that allows users to access and navigate the World Wide Web. It enables users to view and interact with web pages, websites, and online content. Examples include Chrome, Firefox, and Safari.
Answer: An IP address, or Internet Protocol address, is a numerical label that is assigned to a computer or other device connecting to a network and the Internet so that it can access network resources. Examples 192.168.1.100
Answer: A URL (Uniform Resource Locator) is a web address that specifies the location of a resource on the internet. It typically consists of the protocol (e.g., http:// or https://) the domain name, and the specific path to the resource. What is a URL? Examples https://simiservice.com/
Answer: HTTP, or Hypertext Transfer Protocol, is the foundation of data communication on the World Wide Web. It is an application layer protocol that enables the transfer of hypertext, typically in the form of web pages and resources, between a web browser and a web server
Answer: HTTP (Hypertext Transfer Protocol) is the foundation of data communication on the World Wide Web. HTTPS (Hypertext Transfer Protocol Secure) is the secure version of HTTP, providing encrypted communication over a computer network, usually the Internet.
Answer: Malware is a broad term that refers to any malicious software designed to harm or exploit computer systems. Viruses are a specific type of malware. While all viruses are malware, not all malware are viruses.
Answer: Antivirus software is a program designed to detect, prevent, and remove malicious software (malware) from a computer or network. It helps protect against viruses, worms, trojans, and other threats.
Answer: It is a type of small network that allows computers and other devices in a home, office, or campus to connect to the network and access shared resources.
Answer: Wi-Fi is a technology that allows devices to connect wirelessly to a local area network (LAN) using radio waves. It enables internet access without the need for physical cables.
Answer: A router is a networking device that forwards data between computer networks. It acts as a central hub, directing traffic between devices on a local network and the wider internet.
Answer: DNS (Domain Name System) translates human-readable domain names into IP addresses, allowing computers to locate and connect on the internet.
Answer: A protocol is a set of rules and conventions that govern how data is transmitted and received between devices on a network. It ensures standardized communication.
Answer: HTML (Hypertext Markup Language) is the standard markup language for creating and structuring web pages. It is used to define the structure and layout of content on the World Wide Web.
Answer: CSS (Cascading Style Sheets) is a style sheet language used for describing the presentation of a document written in HTML. It defines how elements on a web page should be styled, such as layout, colors, and fonts.
Answer: JavaScript is a high-level, versatile programming language primarily used for building interactive and dynamic content on websites
Answer: GUI stands for Graphical User Interface. It is a type of interface that allows users to interact with electronic devices or software through graphical elements such as icons, buttons, and windows.
Answer: A database is an organized collection of structured data, typically stored and accessed electronically. It allows for efficient data management and retrieval.
Answer: FTP (File Transfer Protocol) is a standard network protocol used to transfer files from one host to another over a TCP-based network, such as the Internet.
Answer: A modem, short for modulator-demodulator, is a networking device that converts analog signals to digital and vice versa to connect devices to the Internet.
Answer: Data encryption is the process of converting plain or readable data into a coded or unreadable form using algorithms and keys.
Answer: A backup is a copy of data stored separately from the original to prevent data loss in case of accidental deletion, hardware failure, or other disasters.
Answer: Virtualization is a technology that allows multiple virtual instances or environments to run on a single physical computer or server.
Answer: A QR code (Quick Response code) is a two-dimensional barcode that contains information readable by a QR code scanner, typically used for quickly accessing websites or information.
Answer: Phishing is a cyber-attack where attackers use deceptive emails, messages, or websites to trick individuals into revealing sensitive information, such as passwords or financial details.
Answer: CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a challenge-response test used on websites to determine whether the user is a human or an automated bot
Answer: A search engine is a software system that helps users find information on the internet by indexing and retrieving relevant web pages based on user queries.
Answer: Programming languages are formal languages used to instruct computers. Examples include Python, Java, and C++.
Answer: Open-source software is software whose source code is freely available to the public. Users can view, modify, and distribute the code. This means that users not only have the right to use the software but also the freedom to study how it works, make changes, and share those changes with others
Answer: Pixel resolution refers to the number of pixels in an image, usually expressed as the width and height of the image in pixels. Higher resolutions result in sharper and more detailed images.
Answer: A byte is a unit of digital information consisting of 8 bits. It is often used to represent a character in computer systems.
Answer: Binary code is a system of representing information using the binary number system, which uses only two digits (0 and 1). It is fundamental to digital computing.
Answer: A cache is a high-speed data storage layer that temporarily stores frequently accessed or recently used data to enhance data retrieval performance.
Answer: Multitasking is the ability of an operating system or computer to execute multiple tasks simultaneously, allowing users to switch between applications and perform various activities concurrently.
Answer: A server is a computer or a system that provides resources, services, or functionality to other computers or devices, known as clients, within a network.
Answer: TCP/IP, or Transmission Control Protocol/Internet Protocol, is a suite of communication protocols that form the foundation of the Internet and most computer networks. It provides a set of rules and conventions for devices to communicate and exchange data over a network.
Answer: A LAN cable, or Ethernet cable, is a type of cable used to connect devices within a Local Area Network (LAN). It enables the transfer of data between devices such as computers, routers, and switches.
Answer: A protocol in networking is a set of rules governing the format and transmission of data between devices on a network, ensuring standardized communication.
Answer: A VPN (Virtual Private Network) is a technology that creates a secure, encrypted connection over the internet, allowing users to access a private network as if they were directly connected to it. VPNs enhance privacy and security, especially when using public networks.
Answer: A power supply unit (PSU) converts electrical power from an outlet into a form that a computer can use. It supplies power to the various components within a computer
Answer: Overclocking is the process of increasing a computer component’s clock rate (usually the CPU) to operate at a higher speed than its officially designated maximum.
Answer: Latency refers to the time it takes for data to travel from its source to its destination in a computer network. It is the delay or lag between the initiation of a data transfer and the actual reception or processing of the data. Latency is usually measured in milliseconds (ms
Answer: The main difference lies in the amount of memory a system can address. A 32-bit system can address up to 4 GB of RAM, while a 64-bit system can address much more, allowing for better performance and handling of larger datasets.
Answer: A proxy server acts as an intermediary between a user’s device and the internet. It can be used for various purposes, including improving security, privacy, and performance.
Answer: A sound card is a computer hardware component that enables a computer to produce an audio sound. It converts digital audio signals into analog signals for output to speakers or headphones.
Answer: A domain name registrar is a service provider that enables individuals and organizations to register and acquire domain names for their websites. These registrars oversee the entire domain registration process and handle various technical aspects associated with it.
Answer: Spyware is malicious software that secretly gathers information about a user’s online activities without their knowledge or consent. It can track keystrokes, capture passwords, and transmit sensitive data to third parties.
Answer: A script is a series of instructions written in a scripting language that can be executed to perform specific tasks or automate processes within a computer program or software.
Answer: A compiler is a software tool that translates source code written in a high-level programming language into machine code or bytecode, which can be executed by a computer’s CPU.
Answer: Cloud storage refers to the online storage of data on remote servers accessible through the Internet. Users can store, access, and manage their data from various devices connected to the internet.
Answer: A UPS, or Uninterruptible Power Supply, is a device that provides backup power to a computer or other electrical equipment in case of a power outage.
Answer: A network switch is a device that connects multiple computers or devices within a local area network (LAN) and uses MAC addresses to forward data to the appropriate destination.
Answer: A web server is a software application or hardware device that stores, processes, and delivers website web pages and other web content to Network-connected users.
Answer: SQL stands for Structured Query Language. It is a programming language used for managing and manipulating relational databases.
Answer: A heat sink is a passive cooling device used to dissipate heat generated by electronic components, particularly in devices like computer processors (CPUs), graphics processing units (GPUs), and other integrated circuits.
Answer: A computer file system is a method or structure used by operating systems to organize and store data on storage devices such as hard drives, solid-state drives, and other storage media
Answer: cybersecurity, is the process of protecting computer systems, networks, programs, and data from digital attacks, unauthorized access, damage, or theft.
Answer: The smallest unit of data in a computer is a binary digit, commonly known as a “bit.” A bit can have a value of either 0 or 1, representing the most basic form of data in computing.
Answer: the “Father of Computers” is often attributed to Charles Babbage. He was an English mathematician and inventor who conceptualized the idea of the programmable mechanical computer in the 19th century.
Answer: An interpreter is a type of computer program or software that directly executes instructions written in a high-level programming language without the need for a separate compilation step.
Answer: The early web browser, initially named WorldwideWeb (later changed to Nexus to prevent confusion with the World Wide Web), was developed in 1990 by the British computer scientist Sir Tim Berners-Lee.
Answer: The first widely recognized computer virus is known as the “Brain” virus. It was created by two Pakistani brothers, Basit Farooq Alvi and Amjad Farooq Alvi, in 1986.
Answer: The unit commonly used to measure the speed or processing power of a computer is Hertz (Hz). The term “Hertz” represents the number of cycles per second.
Answer: The computer mouse was invented by Douglas Engelbart. He was an American engineer and inventor who conceived the idea of the mouse as a device for interacting with computers.
Answer: The motherboard is the primary circuit board and central component of a computer system. Various hardware components are connected directly or indirectly to the motherboard.
Answer: ASCII, which stands for American Standard Code for Information Interchange, is a character encoding standard that uses numeric codes to represent text characters.
Answer: Computer ports are physical or virtual interfaces on a computer or electronic device that allow the connection of external peripherals, devices, or networks
Answer: WWW stands for the World Wide Web, which is a system of interlinked hypertext documents and multimedia content accessed via the internet
Answer: A cookie, in the context of computing and the internet, is a small piece of data stored on a user’s device by a web browser.
Answer: A computer network is a set of interconnected computers and other devices that communicate with each other and share resources.
Answer: An algorithm is a step-by-step procedure or set of rules designed to solve a specific problem or perform a particular task.
Answer: The purpose of antivirus software is to detect, prevent, and remove malicious software, commonly known as malware, from computer systems
Answer: The invention of the keyboard, in the context of a typewriter or computer keyboard, is attributed to Christopher Latham Sholes, an American newspaper editor and printer
Answer: Artificial Intelligence (AI) refers to the development of computer systems that can perform tasks that typically require human intelligence
Answer: An algorithm is a step-by-step set of instructions or rules designed to perform a specific task or solve a particular problem.
Answer: Cryptography is the practice and study of techniques for secure communication and data protection in the presence of adversaries.
Answer: The Internet is a global network of interconnected computers and computer networks that communicate using standardized protocols.
Answer: MBR stands for Master Boot Record, and it is a crucial data structure located at the beginning of a storage device, typically a hard disk drive (HDD) or a solid-state drive (SSD). The MBR plays a fundamental role in the process
Answer: The first computer manufactured in India was the “SIDAC” (System for Interactive Computing and Animation), developed by the Electronics Corporation of India Limited (ECIL) in the early 1980s.
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