What are Charachteristics of Computer

Following are the important characteristics of a computer:

1. Speed

Computers work at a very high speed. They are much faster than humans.

A computer can perform billions of calculations in a second. Computer speed is measured in Mega Hertz (MHz).

2. Storage

A computer can store large amounts of data permanently.

3. Processing

A computer can process the given instructions for processing of data. It can perform different types of processing like addition, subtraction, multiplication and division.

4. Accuracy

Accuracy means the capability to provide results without any errors. Computer can process large amounts of data and produce 100% accurate results.

5. Recalling

A computer can recall the stored data and information at any time, as and when required.

6. Cost Reduction

Computer can reduce cost. We can do a work in less time and cost by computer. A single person, with computer, can do work of many people in an office.

8. Versatile

A computer can perform different types of tasks. We can use a computer in educational institute, in hospital, bank or at home. computers are being used in banks industry, medical, science and engineering fields.

9. No Feelings

Computer has no feelings. It cannot be affected by sorrows and happiness.

10. No Intelligence

Computer itself is not intelligent. It only follows the given instructions. If a computer is given a program for addition it cannot perform subtraction by itself.

Introduction To Computer
1.1 What is Computer
1.2 What are Characteristics of Computer
1.3 What are the basic units or components of a computer
1.4 What are Different Types of Computer
1.5 Write a note on Classification of Computers
1.6 What are the basic operations of a computer
1.7 Explain The Concept of A Computer System
1.8 What are uses of computer at Home
1.9 Uses Of Computer in Business Organizations
1.10 Uses Of Computer In Education Field
1.11 Uses Of Computer in Medical Field
1.12 Uses Of Computer In Industry
1.13 Uses Of Computer In Science
1.14 Differentiate between Analog and Digital Computers - See more at: http://forfreeeducation.blogspot.com/2011/02/what-is-computer.html#sthash.tDLl7iTh.dpuf

Further Suggested Reading:

Explain different types of storage devices

Topic: Explain different types of storage devices in Computer systems Storage Devices Storage devices are used to store data and instructions permanently. Storage devices are also called secondary storage devices / backing storage devices / external storage devices or auxiliary storage devices. Examples of storage devices include Hard Disk, CD and DVD etc. Why Secondary Storage Devices are Used? Secondary storage devices are used because: Primary memory(RAM) is volatile and temporary. When computer is switched off, all data in ram is erased. Storage devices can store large amounts of data and instructions permanently whereas Primary memory has less capacity of storing data. Types Of Storage Devices There are three main types of storage devices: Magnetic Tape Magnetic Disk Optical Disk Flash Memory storage devices 1. Magnetic Tape Magnetic tape is the oldest storage device. It is made of plastic coated with m...

Explain Different Types Of Output Devices

Output devices Out put devices are used to display results of processing to the user. They perform the following functions: Receive results from memory Convert data into human readable form Display results to the user Examples include: Monitor, printer, plotter, speaker, and multimedia projector. Different Types of Output Devices 1. Monitor LCD Monitor CTR Monitor Monitor is the most commonly used output device used to display results of processing. It has a TV like shape. Pictures on monitor are formed with picture elements called PIXEL. Monitors may be Monochrome that will display results in Black & White. Color Monitors are also available. They display results in multi colors. Monitor produces soft copy output. 2. Printers Printers are used to produce hard copy out put. They print processing results on paper. Printers are divided into two main categories: · ...

What are Different Types of Input Devices With Examples

Topic: Different types of input devices of a computer system with examples, pictures and explanation: Topics Covered are: Definition of Input Devices Functions of Input Devices ( How input devices work? ) Examples of Input Devices Pictures / Images of different input devices Different Examples of Input Devices With Description Keybboard Mouse Trach Ball Trackpad Joy Stick Light Pen Microphone Scanner Graphic Tablet ( Digitizer ) Digital Camera Touch Screen ( I/O Device / Dual Device - Perform Both Functions input + Output ) INPUT DEVICES ( Definition ) Input devices are used to enter data and instructions into computer memory from external world. Input Device is a hardware part of the computer that is used to enter data and instructions into computer memory. The examples of input devices include: Keyboard, Mouse , Track ball, Track Pad, Joy stick, Touch Screen, Light pen, Scanner , Digital Camera, Microphone, Graphics tablet e...

Perfect Computer Notes

Search This Blog