Operating System

erin gallagher
Flashcards by erin gallagher, updated more than 1 year ago
erin gallagher
Created by erin gallagher over 4 years ago
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operating system
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What is a user interface? A user interface (UI) is the part of an operating system, program or device that the user uses to input and receive data. In information technology, the user interface (UI) is everything designed into an information device with which a human being may interact -- including display screen, keyboard, mouse, light pen, the appearance of a desktop, illuminated characters, help messages, and how an application program or a Web site invites
What is a file manager? A file manager or file browser is a computer program that provides a user interface to manage files and folders. The system that an operating system or program uses to organize and keep track of files. For example, a hierarchical file system is one that uses directories to organize files into a tree structure. Although the operating system provides its own file management system, you can buy separate file management systems.
What does booting the computer mean? To boot (as a verb; also "to boot up") a computer is to load an operating system into the computer's main memory or random access memory (RAM). Once the operating system is loaded (and, for example, on a PC, you see the initial Windows or Mac desktop screen), it's ready for users to run applications. Why do we boot a computer? Booting is actually using a 'boot loader' programme that is self sustaining to start up. It comes from the term "pull yourself up by your bootstraps" as it is self-sustaining - the first one was in the 1950s.
What are system resources? A resource, or system resource, is any physical or virtual component of limited availability within a computer system. Every device connected to a computer system is a resource. System resources are often talked about in relation to system memory (your computer's RAM) but resources might also come from the CPU, the motherboard, or even other hardware
What is basic computer tasks? In computer programming, a task is a basic unit of programming that an operating system controls. Depending on how the operating system defines a task in its design, this unit of programming may be an entire program or each successive invocation of a program Since one program may make requests of other utility programs, the utility programs may also be considered tasks (or subtasks). All of today's widely-used operating systems support multitasking , which allows multiple tasks to run concurrently, taking turns using the resources of the computer
Can you have a computer without an operating system? Since one program may make requests of other utility programs, the utility programs may also be considered tasks (or subtasks). All of today's widely-used operating systems support multitasking , which allows multiple tasks to run concurrently, taking turns using the resources of the computer What is an operating system? the low-level software that supports a computer's basic functions, such as scheduling tasks and controlling peripherals.
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