Important Computer MCQs
What does CPU stand for?Central Process UnitCentral Processing UnitComputer Personal UnitCentral Process UnitB) Central Processing UnitThe CPU is the brain of the computer, responsible for executing instructions and performing calculations.
Which of the following is an example of an operating system?Microsoft WordGoogle ChromeWindows 10Adobe PhotoshopC) Windows 10An operating system (OS) is software that manages hardware resources and provides services for computer programs. Windows 10 is one of the most popular OS.
Which type of computer memory is non-volatile?RAMCache memoryROMRegistersC) ROMROM (Read-Only Memory) is non-volatile, meaning it retains its data even when the computer is powered off.
Which of the following is the primary function of an operating system?Managing hardware resourcesRunning applicationsManaging internet connectionsDesigning the user interfaceA) Managing hardware resourcesThe operating system manages hardware resources like memory, CPU, and storage, allowing software applications to run.
What does the acronym 'HTTP' stand for?HyperText Transfer ProtocolHyperText Translation ProtocolHyper Transfer Text ProtocolHyper Tool Transfer ProtocolA) HyperText Transfer ProtocolHTTP is the protocol used for transferring data over the World Wide Web, enabling web browsers to request and receive data from web servers.
What is the full form of 'USB'?Universal Serial BusUnited Serial BusUniversal Service BusUnified Serial BusA) Universal Serial BusUSB is a standard for connecting peripherals like keyboards, mice, and external drives to a computer.
Which of the following is NOT an input device?KeyboardMouseMonitorScannerC) MonitorA monitor is an output device, while the other options are input devices used to provide data to the computer.
What is the main function of an ALU (Arithmetic Logic Unit)?Store dataPerform mathematical operationsExecute instructionsControl the computer's operationsB) Perform mathematical operationsThe ALU performs arithmetic and logic operations, such as addition, subtraction, and comparisons, within the CPU.
Which of the following is an example of a primary memory?Hard DiskRAMUSB DriveDVDB) RAMRAM (Random Access Memory) is primary memory, used to store data that is actively being used or processed by the computer.
What does the term "cloud computing" refer to?Using remote servers for storage and processingComputing using a personal computerUsing a local network for sharing filesUsing a computer without an internet connectionA) Using remote servers for storage and processingCloud computing refers to using the internet to access services, storage, and computing power provided by remote servers.
What is the purpose of the 'Cache Memory' in a computer system?To store programsTo store frequently used data for faster accessTo manage network trafficTo store large filesB) To store frequently used data for faster accessCache memory is a small, high-speed storage that stores frequently accessed data to reduce access time.
Which of the following is a type of software that controls the computer hardware?Application softwareUtility softwareSystem softwareFirmwareC) System softwareSystem software includes the operating system and utilities that manage computer hardware and provide a platform for running application software.
Which of the following is NOT a type of computer virus?TrojanWormCookieMalwareC) CookieA cookie is a small piece of data stored by a web browser to remember information, while the other options are types of malicious software.
Which is a common example of a storage device?CPURAMHard DrivePrinterC) Hard DriveA hard drive is a non-volatile storage device used to store data permanently.
What is the purpose of an IP address?To identify a device on a networkTo control the flow of data on the internetTo store data on the internetTo connect devices in a local area networkA) To identify a device on a networkAn IP address is a unique identifier for a device on a network, enabling communication between devices over the internet or local network.
Which of the following is an example of application software?Windows OSGoogle ChromeBIOSDevice driversB) Google ChromeApplication software helps users perform specific tasks, such as browsing the web in the case of Google Chrome.
What does BIOS stand for?Basic Input Output SystemBasic Integrated Operating SystemBinary Input Output SystemBase Input Operating SystemA) Basic Input Output SystemBIOS is firmware that initializes hardware during the startup process before the operating system loads.
What is the function of an operating system?Run applicationsManage system resourcesPerform mathematical calculationsProvide internet accessB) Manage system resourcesThe operating system manages hardware and software resources, like CPU, memory, and storage.
Which of the following is an example of cloud storage?Google DriveHard Disk DriveDVD-RDriveUSB Flash DriveA) Google DriveCloud storage allows users to store files online on a remote server, accessible from anywhere.
Which type of computer memory is temporary and volatile?ROMHard DiskRAMUSB DriveC) RAMRAM (Random Access Memory) is temporary memory that loses its data when the computer is powered off.
What does the term "URL" stand for?Uniform Resource LocatorUniform Remote LocatorUniversal Resource LocatorUniversal Remote LocatorA) Uniform Resource LocatorA URL is the address used to access a resource on the internet, such as a web page.
Which of the following is an example of an input device?PrinterMonitorKeyboardSpeakerC) Keyboard A keyboard is an input device used to enter data into a computer.
What is the purpose of the "Recycle Bin" in Windows?Store system filesTemporary storage for deleted filesStore applicationsManage user settingsB) Temporary storage for deleted filesDeleted files are stored in the Recycle Bin until they are permanently removed.
Which of the following is NOT a type of software?System softwareApplication softwareFirmwareHardwareD) HardwareHardware refers to the physical components of a computer, while the other options are types of software.
Which is the first step in the booting process?Load operating systemPower on self-test (POST)Load application softwareAccess hard driveB) Power on self-test (POST)The booting process begins with POST, which checks the system's hardware for issues.
Which is the default file system used by Windows operating systems?FAT32NTFSexFATHFS+B) NTFSNTFS (New Technology File System) is the default file system used by Windows for managing files.
Which of the following is a non-volatile memory type?CacheRAMFlash MemoryRegistersC) Flash MemoryFlash memory retains data even when the power is off, making it non-volatile.
Which of the following programming languages is used to design web pages?JavaHTMLC++D) PythonB) HTMLHTML (HyperText Markup Language) is used to structure and design web pages.
What does the "RAM" in a computer refer to?Read-Only MemoryRandom Access MemoryReal-time Access MemoryRandom Access MediaB) Random Access MemoryRAM is temporary memory that stores data currently in use by the system.
What is the main purpose of an operating system's kernel?Manage the user interfaceControl peripheral devicesManage system resourcesRun application softwareC) Manage system resourcesThe kernel manages hardware and software resources and is the core part of the operating system.
Which of the following is the smallest unit of data?ByteBitKilobyteMegabyteB) BitA bit is the smallest unit of data in computing, represented by a 0 or 1.
What is the function of a compiler?Store programsConvert source code into machine codeDebug programsPerform arithmetic operationsB) Convert source code into machine codeA compiler translates high-level source code into machine code that the CPU can execute.
Which of the following is an example of a video output device?PrinterMonitorKeyboardScannerThis is the explaination of this mcsqs