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A personal computer, often referred to as a PC or simply computer, is a computer designed for individual use. [1] It is typically used for tasks such as word processing, internet browsing, email, multimedia playback, and gaming. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or technician.
On modern personal computers, users often want to run several applications at once. In order to ensure that one program cannot monopolize the computer's limited hardware resources, the operating system gives each application a share of the resource, either in time (CPU) or space (memory).
Application software is any computer program that is intended for end-user use – not operating, administering or programming the computer. An application ( app , application program , software application ) is any program that can be categorized as application software.
Offering common services, such as an interface for accessing network and disk devices. This enables an application to be run on different hardware without needing to be rewritten. [12] Application software runs on top of the operating system and uses the computer's resources to perform a task. [13]
Productivity software traditionally runs directly on a computer. For example, Commodore Plus/4 model of computer contained in ROM for applications of productivity software. Productivity software is one of the reasons people use personal computers .
Computer programming or coding is the composition of sequences of instructions, called programs, that computers can follow to perform tasks. [ 1 ] [ 2 ] It involves designing and implementing algorithms , step-by-step specifications of procedures, by writing code in one or more programming languages .
A personal area network (PAN) is a computer network used for communication among computers and different information technological devices close to one person. Some examples of devices that are used in a PAN are personal computers, printers, fax machines, telephones, PDAs, scanners, and video game consoles.
Computer engineers are involved in many hardware and software aspects of computing, from the design of individual microprocessors, personal computers, and supercomputers, to circuit design. This field of engineering includes not only the design of hardware within its own domain, but also the interactions between hardware and the context in ...