Explanation: To move a copy of a file from one computer to another over a communication channel is typically referred to as file transfer. Explanation: File transfer: File transfer involves the process of copying files from one location to another, which could be between computers connected via a network or over the internet. This process allows users to share files, documents, media, or any digital content between devices. File transfer methods can include using file transfer protocols such as FTP (File Transfer Protocol), SFTP (Secure File Transfer Protocol), HTTP (Hypertext Transfer Protocol), or through cloud storage services. File encryption: File encryption is the process of encoding information in a way that only authorized parties can access it. It is used to protect sensitive data during storage or transmission to prevent unauthorized access or tampering. While encryption can be part of file transfer for security reasons, it specifically focuses on securing data rather than the act of transferring files. File modification: File modification refers to altering or changing the contents of a file, such as editing a document, updating a spreadsheet, or modifying an image. It involves making changes to the existing file rather than transferring it between computers. File copying: File copying is the act of duplicating a file from one location to another within the same storage device or between different storage devices on the same computer. It involves creating an identical copy of the original file in a new location. Conclusion: In the context described, the action of moving a copy of a file from one computer to another explicitly refers to file transfer, which encompasses the process of transmitting files over a communication channel between separate computing devices. Therefore, the correct answer is: File transfer

Explanation: VDU stands for Visual Display Unit, which is synonymous with both screen and monitor in computing terminologies. Explanation: Screen: In computing, a screen refers to the physical surface where visual output from a computer is displayed. It includes the display area where text, graphics, and images are presented to the user. Monitor: A monitor is a device that displays visual output from a computer. It includes the screen (display panel) as well as the electronics and casing that support the display functionality. Monitors come in various types such as CRT (Cathode Ray Tube), LCD (Liquid Crystal Display), LED (Light Emitting Diode), and OLED (Organic Light Emitting Diode). Both 1 & 2: VDU (Visual Display Unit) is a term used interchangeably with both "screen" and "monitor" to refer to the visual output device of a computer system. It encompasses the physical display screen and its associated electronics that render visual information generated by the computer. Printer: A printer is an output device that produces hard copies of digital documents or images on paper or other media. It is used to create permanent visual representations of digital content, unlike a VDU which is used for real-time display and interaction. Conclusion: Both "screen" and "monitor" are commonly used to describe the visual display unit (VDU) of a computer system. Therefore, the correct answer is: Both 1 & 2

Explanation: The 'Ctrl + C' keyboard shortcut in most computer applications is used for copying selected content. Explanation: Copy: When you press 'Ctrl + C' (or Command + C on Mac), it copies the selected text, files, or other content to the clipboard. The copied content remains in its original location and can be pasted into another location or document using the 'Ctrl + V' (or Command + V) shortcut. Cut: The 'Ctrl + X' shortcut is used to cut selected content, which removes it from its original location and places it on the clipboard. Cut content can be pasted elsewhere using 'Ctrl + V'. Paste: The 'Ctrl + V' shortcut is used to paste content from the clipboard into the current location. This action inserts the copied or cut content at the cursor's position. Undo: The 'Ctrl + Z' shortcut is used to undo the last action performed, whether it was typing, deleting, formatting, or other operations depending on the application. Conclusion: In the context of keyboard shortcuts: Ctrl + C is used for copying selected content to the clipboard. Ctrl + X is used for cutting selected content to the clipboard. Ctrl + V is used for pasting content from the clipboard. Therefore, the correct answer is: Copy

Explanation: DOS stands for Disk Operating System. Explanation: Disk Operating System: DOS is a term used to describe early operating systems that were primarily designed to manage and control disk operations on personal computers. The most well-known DOS is MS-DOS (Microsoft Disk Operating System), which was developed by Microsoft and widely used during the 1980s and early 1990s. DOS provides the basic functionality to manage files, run applications, and interact with hardware devices using a command-line interface. Disk operating session: This term is not a commonly recognized acronym or description for an operating system. It does not accurately describe the function or historical context of DOS. Digital Operating System: While "digital" can refer to computer-based operations, there is no widely recognized operating system known as "Digital Operating System." It does not correspond to the common understanding of DOS. Digital Open system: This phrase does not represent an operating system acronym or term commonly used in computing. It does not describe an operating system or its functionality. Conclusion: DOS, specifically Disk Operating System, refers to early operating systems focused on disk management and was crucial in the development of personal computing. MS-DOS, for example, was foundational for the growth of the PC industry and remains influential in computing history. Therefore, the correct answer is: Disk Operating System

Explanation: A computer program that converts an entire program into machine language is called a compiler. Explanation: Compiler: A compiler is a software tool that translates the entire source code of a program written in a high-level programming language (like C, C++, Java) into machine code or executable code that the computer's processor can directly execute. The process involves several stages: lexical analysis (breaking down the source code into tokens), syntax analysis (parsing the tokens into a parse tree), semantic analysis (checking the semantics and producing intermediate code), optimization (improving the efficiency of the intermediate code), and code generation (producing the final machine code). Interpreter: An interpreter, in contrast to a compiler, translates and executes the source code line by line or statement by statement, without converting the entire program into machine code first. It interprets and executes the code directly, often without producing a separate executable file. Simulator: A simulator is a program that models the behavior of a system or process. It is used to study the behavior of a system under different conditions or to simulate real-world scenarios. It does not convert high-level code into machine code like a compiler does. Commander: This term does not correspond to a computer program that converts high-level code into machine language. It does not describe a specific software tool or process related to programming or compiling. Conclusion: A compiler is essential in software development for converting human-readable source code into executable machine code, enabling the computer to execute programs efficiently. Therefore, the correct answer is: Compiler

Explanation: The output quality of a printer is primarily measured by dots per inch (DPI). Explanation: Dots per inch (DPI): This metric indicates the resolution or clarity of printed output. DPI refers to the number of individual dots of ink or toner that a printer can produce in a linear inch. Higher DPI values generally result in sharper and more detailed prints, especially noticeable in images, graphics, and fine text. Dot per square inch: This term is less commonly used to measure printer output quality compared to DPI. It does not accurately describe the resolution or clarity of printed output as directly as DPI does. Dots printed per unit time: This measures the printing speed of a printer, not its output quality. It refers to the number of dots or pages that a printer can produce within a specific timeframe (e.g., pages per minute). All of the above: While DPI is the primary measure of output quality, the phrase "All of above" is not accurate because DPI and dots per square inch are related but not interchangeable terms, and dots printed per unit time measures speed, not quality. Conclusion: DPI is the standard measurement used to assess the resolution and quality of printed output from a printer. Higher DPI generally correlates with better print quality, especially for detailed images and text. Therefore, the correct answer is: Dot per inch (DPI)