COMPUTER BASIC
What is the primary function of a modem? To convert digital signals to analog signals and vice-versa.To store data permanently.To process instructions from the CPU.To display visual output.A) To convert digital signals to analog signals and vice-versa.A modem (modulator-demodulator) is a device that converts digital data into analog signals for transmission over telephone lines or cable and reconverts the analog signals back into digital data at the receiving end.
Which of the following is an example of an input device?MonitorSpeaker KeyboardPrinter C) KeyboardA keyboard is an input device used to enter characters and functions into a computer system. The other options are output devices.
What does the acronym "RAM" stand for?Random Access MemoryRead-Only MemoryRemote Access ModuleRandom Address MainframeA) Random Access MemoryRAM is a type of computer memory that can be accessed randomly, allowing any byte of memory to be accessed without touching the preceding bytes. It is a form of volatile storage used for temporary data.
In a spreadsheet program like Microsoft Excel, what is a "cell"?The intersection of a row and a column.A small program that runs within the spreadsheet.A chart or graph.A formula or function.A) The intersection of a row and a column.In spreadsheet software, a cell is the basic rectangular unit where data is stored. It is defined by the column and row it occupies.
What is the purpose of an IP address?To identify a user's password.To uniquely identify a device on a network.To encrypt data transmissions.To protect a computer from viruses.B) To uniquely identify a device on a network.An IP (Internet Protocol) address is a unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
Which type of software is responsible for managing a computer's resources, such as memory, processes, and hardware? Application softwareOperating systemUtility software Programming languageB) Operating systemAn operating system (OS) is the most important software that runs on a computer. It manages the computer's memory, processes, and all of its software and hardware.
What is a "firewall"?A type of computer virus.A software or hardware-based network security system that controls incoming and outgoing network traffic.A tool used to clean up a computer's hard drive.A program that compresses files.B) A software or hardware-based network security system that controls incoming and outgoing network traffic.A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
Which of the following is a non-volatile type of memory?RAMCache memoryROMVirtual memoryC) ROMROM (Read-Only Memory) is a type of memory that retains its data even after the power is turned off, making it non-volatile. RAM is a type of volatile memory.
What is the main function of a graphics processing unit (GPU)?To manage network connections. To handle mathematical calculations.To accelerate the creation and rendering of images, videos, and animations.To store long-term data. C) To accelerate the creation and rendering of images, videos, and animations.A GPU is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device.
What is the difference between LAN and WAN?LAN is for personal computers, while WAN is for servers. LAN is a local network, while WAN covers a wide geographical area. LAN is wireless, while WAN is wired. LAN is for small files, while WAN is for large files. B) LAN is a local network, while WAN covers a wide geographical area.LAN (Local Area Network) connects devices in a limited area like a home or office, whereas WAN (Wide Area Network) connects devices across a wider area, such as a country or the world.
Which of the following is an example of an input device?PrinterSpeakerScannerMonitor C) ScannerA scanner is a device that captures images, printed text, or objects and converts them into digital format, making it an input device.
What does the acronym "RAM" stand for? Readily Available MemoryRandom Access MemoryReal-time Application ModuleRemote Access MainframeB) Random Access MemoryRAM is a form of computer memory that can be read and changed in any order, typically used to store working data and machine code.
What is the primary function of a web browser?To edit documents.To manage a computer's operating system. To access and view web pages.To protect against viruses.C) To access and view web pages.A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web.
In spreadsheet software like Microsoft Excel, a "cell" is defined as:The entire document.A single box at the intersection of a row and a column.A group of worksheets.The toolbar at the top of the screen.B) A single box at the intersection of a row and a column.In a spreadsheet, a cell is the basic unit for storing data and formulas, located where a row and column intersect.
What is the binary number system based on?Two digits (0 and 1)Ten digits (0 to 9)Eight digits (0 to 7) Sixteen digits (0 to 9 and A to F)A) Two digits (0 and 1)The binary number system, or base-2, is a system that represents numerical values using two symbols, typically 0 and 1.