• Micro Computer :- Micro Computer is a small, relatively inexpensive computer with a microprocessor as its CPU. • Mini Computer :- Mini computers were designed for control, instrumentation, human interaction, and communication switching as it is distinct from calculation and record keeping. • Mainframe Computers :- Mainframe Computers is a powerful multi-user computer that can support thousand users simultaneously. • Super Computer :- Super Computers are best in terms of processing capacity and also the most expensive one.
GSM : Global system for mobile comunication LTE : Long term evolution VOLTE : Voice over long term evolution IOS : IPhone operating system * CAPTCHA : Completely automated public turing test to tell computers and humans apart DOS : Disk operating system * It is also known as Challenge response authentication.
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