Computer

What is a Computer? Webopedia Definition

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By Vangie Beal

A computer is a programmable machine. The two principal characteristics of a computer are: It responds to a specific set of instructions in a well-defined manner and it can execute a prerecorded list of instructions (a program).

Modern Computers Defined

Modern computers are electronic and digital. The actual machinery wires, transistors, and circuits is called hardware; the instructions and data are called software.

All general-purpose computers require the following hardware components:

In addition to these components, many others make it possible for the basic components to work together efficiently. For example, every computer requires a bus that transmits data from one part of the computer to another.

Computer Classification: By Size and Power

Most people associate a personal computer (PC) with the phrase computer.  A PC is a small and relatively inexpensive computer designed for an individual

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What is a Computer?

Updated: 12/30/2019 by Computer Hope

Desktop computer, laptop, 2-in-1 PC.

A computer is a programmable device that stores, retrieves, and processes data. The term “computer” was originally given to humans (human computers) who performed numerical calculations using mechanical calculators, such as the abacus and slide rule. The term was later given to a mechanical device as they began replacing the human computers. Today’s computers are electronic devices that accept data (input), process that data, produce output, and store (storage) the results.

Computer overview

Below is a picture of a computer with each of the main components. In the picture below, you can see the desktop computer, flat-panel display, speakers, keyboard, and mouse. We’ve also labeled each of the input devices and output devices.

Desktop computer

History of the computer

The first digital computer and what most people think of as a computer was called the ENIAC. It was built during World War II (1943-1946) and was designed

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Computer – Wikipedia

Automatic general-purpose device for performing arithmetic or logical operations

A computer is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming. Modern computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks. A “complete” computer including the hardware, the operating system (main software), and peripheral equipment required and used for “full” operation can be referred to as a computer system. This term may as well be used for a group of computers that are connected and work together, in particular a computer network or computer cluster.

Computers are used as control systems for a wide variety of industrial and consumer devices. This includes simple special purpose devices like microwave ovens and remote controls, factory devices such as industrial robots and computer-aided design, and also general

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Computers: PC, Laptops & Desktops at Every Day Low Price | Walmart.com

Get your tech in check with powerful or portable computers

Are you ready to upgrade to a new computer? Walmart has plenty of options from laptops to tablets to desktop models all at Every Day Low Prices. Here’s how to shop for different models.

Laptop, tablet or desktop computer

The first thing to consider when buying a new computer is whether you want a laptop, a tablet or a desktop model.

Desktop computers

If you plan to use your computer in one location, desktops have many advantages.

  • Power – You can get a more powerful computer for your money. A typical, modern-day desktop computer can provide a 500-gigabyte hard drive, a 3.4-gigahertz dual-core processor, a 24x DVD+/-RW optical drive and 1 gigabyte of installed memory, which you can upgrade to 4GB.
  • Upgrade options – There are always options to upgrade. You can add a larger hard drive if your system
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computer – AOL Video Search Results

Yahoo!

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