Types of Computers in Hindi || Super computer/Servers/ Wearable computers
Channel: Hitek Nirmal
Date: 2018-04-27

A computer is a machine that can be programmed to manipulate symbols. Its principal characteristics are:

It responds to a specific set of instructions in a well-defined manner.
It can execute a prerecorded list of instructions (a program).
It can quickly store and retrieve large amounts of data.
Therefore computers can perform complex and repetitive procedures quickly, precisely and reliably. 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:

Central processing unit (CPU): The heart of the computer, this is the component that actually executes instructions organized in programs ("software") which tell the computer what to do.
Memory (fast, expensive, short-term memory): Enables a computer to store, at least temporarily, data, programs, and intermediate results.
Mass storage device (slower, cheaper, long-term memory): Allows a computer to permanently retain large amounts of data and programs between jobs. Common mass storage devices include disk drives and tape drives.
Input device: Usually a keyboard and mouse, the input device is the conduit through which data and instructions enter a computer.
Output device: A display screen, printer, or other device that lets you see what the computer has accomplished.
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.

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