Laptop A Defination

A laptop is a personal computer designed for mobile use and small enough to sit on one's lap. A laptop integrates most of the typical components of a desktop computer, including a display, a keyboard, a pointing device (a touchpad, also known as a trackpad, and/or a pointing stick), speakers, and often including a battery, into a single small and light...

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Function of Computer

A general purpose computer has four main components: the arithmetic logic unit (ALU), the control unit, the memory, and the input and output devices (collectively termed I/O). These parts are interconnected by busses, often made of groups of wires.Inside each of these parts are thousands to trillions of small electrical circuits which can be turned...

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Window (computing)

In computing, a window is a visual area containing some kind of user interface. It usually has a rectangular shape. It displays the output of and allows input of one or more processes.Windows are primarily associated with graphical displays, where they can be manipulated with a mouse cursor.A graphical user interface (GUI) using windows as one of its...

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Programs of Computer

In practical terms, a computer program may run from just a few instructions to many millions of instructions, as in a program for a word processor or a web browser. A typical modern computer can execute billions of instructions per second (gigahertz or GHz) and rarely make a mistake over many years of operation. Large computer programs consisting of...

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Stored program architecture

The defining feature of modern computers which distinguishes them from all other machines is that they can be programmed. That is to say that a list of instructions (the program) can be given to the computer and it will store them and carry them out at some time in the future.In most cases, computer instructions are simple: add one number to another,...

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History of Computer

The first use of the word "computer" was recorded in 1613, referring to a person who carried out calculations, or computations, and the word continued to be used in that sense until the middle of the 20th century. From the end of the 19th century onwards though, the word began to take on its more familiar meaning, describing a machine that carries...

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A Computer Defination

A computer is a machine that manipulates data according to a set of instructions.Although mechanical examples of computers have existed through much of recorded human history, the first electronic computers were developed in the mid-20th century (1940–1945). These were the size of a large room, consuming as much power as several hundred modern personal...

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