1. what is a computer

Dec 30,  · 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. Jul 23,  · 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).

What is Computer : Computer is computet electronic device that is designed to work with Information. Computer can not do anything without a Program. It represents the decimal numbers 1. what is a computer a string of binary digits. It uses read-only memory in the form of punch cards. The computer is an electronic device that takes input from the user and processes these data under how to build a six pack at home control of a set of instructions called program and gives the result output and saves future use.

It can process both numerical and non-numerical arithmetic and logical calculations. Four Functions about computer are:. Input Data :. Input is the raw information entered into a fomputer from the input devices.

It is the collection of letters, numbers, images etc. Process is the operation of data as per given instruction. It is totally internal process of the computer system. Output is the processed data given by computer after data processing. Output is also called as Result. We can save these results in the storage devices for the future use. Computers differ based on their data processing abilities. They are classified according to purpose, data handling and functionality.

According to functionality, computers are classified as:. At least, not in the way most of us think of mini. You know how big your personal computer is and its related family. About Dinesh Thakur. Accepts data. Processes data. Produces output. Stores results.

Techopedia Explains Computer

What is Computer: Computer is an electronic device that is designed to work with Information. The term computer is derived from the Latin term ‘computare’, this means to calculate or programmable machine. Computer can not do anything without a Program. It represents the decimal numbers through a string of binary digits. Feb 18,  · A computer is a machine or device that performs processes, calculations and operations based on instructions provided by a software or hardware program. It has the ability to accept data (input), process it, and then produce outputs. Computers can also store data for later uses in appropriate storage devices, and retrieve whenever it is necessary. In this lesson the class develops a preliminary definition of a computer. After brainstorming the possible definitions for a computer, the class works in groups to sort pictures into “is a computer” or “is not a computer” on poster paper and explain their motivations for choosing some of the most difficult categorizations. The teacher then introduces a definition of the computer and.

An expression is a particular concept in computer science in which a number of variables or constants, and operators and functions, are put together in a single statement that is acted on by a particular programming language. View full term. By clicking sign up, you agree to receive emails from Techopedia and agree to our terms of use and privacy policy.

A computer is a machine or device that performs processes, calculations and operations based on instructions provided by a software or hardware program. It has the ability to accept data input , process it, and then produce outputs. Computers can also store data for later uses in appropriate storage devices, and retrieve whenever it is necessary.

Modern computers are electronic devices used for a variety of purposes ranging from browsing the web, writing documents, editing videos, creating applications, playing video games, etc. They are designed to execute applications and provide a variety of solutions by combining integrated hardware and software components.

The earliest digital electronic device that could be defined as the first modern computer is the Colossus. The device used 2, vacuum tubes to perform multiple boolean logical operations to decode encrypted data. Modern computers come in all shapes and sizes to perform a broad range of different functions. Although the first ones that come to mind are desktop and laptop computers, many other less-assuming devices — such as grocery scanners, ATMs, and smart TVs — are computers as well.

The diffusion of smartphones, game consoles, wearables, and smart appliances made computers much more readily available in our daily life. A computer is made up of multiple parts and components that facilitate user functionality. Physical structure that houses a computer's processor, memory, storage, communication ports and peripheral devices. Each of these components called devices have a different purpose, which may be either accepting inputs, storing data or sending outputs.

For example, a mouse and a microphone are input devices used to record user activities and transform them into data that is transmitted to the system unit.

A hard disk is a storage unit where data is stored and accessed by other devices. A monitor or a speaker are output devices that transform processed data into respectively video and audio signals. Usually, the core components that represent the bare minimum that allow a computer to function are:.

A mainboard that provides basic connection between all the other hardware components and devices internal and external. A storage device where data is stored on a permanent basis. All parts of a computer that are not strictly physical, such as data, programs, applications, protocols, etc. Computer software includes all executable and non-executable data, such as documents, digital media, libraries, and online information. A computer works with software programs that are sent to its underlying hardware architecture for reading, interpretation and execution.

Computers are classified according to computing power, capacity, size, mobility and other factors, as personal computers PC , desktop computers, laptop computers, minicomputers, handheld computers and devices, mainframes or supercomputers.

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What Does Computer Mean? Techopedia Explains Computer The earliest digital electronic device that could be defined as the first modern computer is the Colossus. A computer has two primary categories: Hardware Physical structure that houses a computer's processor, memory, storage, communication ports and peripheral devices. Usually, the core components that represent the bare minimum that allow a computer to function are: Processor CPU The component that processes and executes inputs received from hardware and software.

Motherboard A mainboard that provides basic connection between all the other hardware components and devices internal and external.

Storage device A storage device where data is stored on a permanent basis. Software All parts of a computer that are not strictly physical, such as data, programs, applications, protocols, etc. Share this Term. Tech moves fast! Stay ahead of the curve with Techopedia! Join nearly , subscribers who receive actionable tech insights from Techopedia.

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