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TYPES OF DIGITAL COMPUTERS • There are four Types of Digital Computer in terms of size, power and speed. Supercomputer Mainframe Computer Minicomputer Microcomputer
MICROCOMPUTER • A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit (CPU). It includes a microprocessor, memory and input/output devices. • Also known as “personal computer.” • Includes workstations, desktops, servers, laptops, notebook. • Examples are the IBM pc, Apple Macintoshes, Dell.
MINICOMPUTER • Minicomputer emerged in the mid-1960s and were first developed by IBM Corporation. • This computer fills the space between the mainframe and microcomputer. • This may also be called a mid-range computer. • Minicomputer may contain one or more processors, support multiprocessing and tasking, and generally resilient to high workloads. • Examples are DEC’S, VAX, RANGE.
SUPERCOMPUTER • The biggest in size, the most expensive in price than any other is classified and known as supercomputer. • It can process trillions of instructions in seconds, this computer is neither used as a PC in a home nor student in college. • This is special purpose computer, most govt. institution use this type of computer for their different calculation and heavy job, different industries use this huge computer for designing the products.
MAINFRAME COMPUTER • Mainframe computer is a large, expensive, powerful computer that can handle hundreds or thousand of clients at a same time. • Mainframes store huge amounts of data, instructions, and information. • Large Corporations or government agencies that handle a high volume of data. • For example, an airlines use mainframe to handle airlines reservations, banks manage customer accounts. • Usually store in aspecial secure rooms that have a control climate.
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