computer 

                                                        👉 A programmable machine that performs high-speed processing of numbers, as well as of text, graphics, symbols, and sound. All computers contain a central processing unit that interprets and executes instructions; input devices, such as a keyboard and a mouse, through which data and commands enter the computer; memory that enables the computer to store programs and data; and output devices, such as printers and display screens, that show the results after the computer has processed data.

COMPUTER DIFINITION︖
😄👉  An electronic device that stores and manipulates information. Unlike a calculator, it is able to store a program and retrieve information from its memory. Most computers today are digital, which means they perform operations with quantities represented electronically as digits.


Major types of computers


Analog computer - represents data by measurable quantities
Desktop computer - a personal computer that fits on a desk and is often used for business or gaming
Digital computer - operates with numbers expressed as digits
Hybrid computer - combines features of both analog and digital computers
Laptop (notebook) - an easily transported computer that is smaller than a briefcase
Mainframe (big iron) computer - a centralized computer used for large scale computing
Microcomputer - generally referred to as a PC (personal computer). Uses a single integrated semiconductor chip microprocessor.
Minicomputer - an antiquated term for a computer that is smaller than a mainframe and larger than a microcomputer
Netbook - a smaller and less powerful version of a laptop
Personal computer (PC) - a digital computer designed to be used by one person at a time
Smartphone - a cellular telephone designed with an integrated computer
Supercomputer - a high performing computer that operates at extremely high speeds
Tablet computer (tablet PC) - a wireless personal computer with a touch screen
Workstation - equipment designed for a single user to complete a specialized technical/scientific task

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