Abstract: This chapter presents the principles of microcomputer. Computers are generally classified as mainframe computers, minicomputers, and microcomputers. The distinguishing feature of a microcomputer is that its central processor unit (CPU) is a single integrated circuit (IC). This central component is termed microprocessor. The CPU, or microprocessor in the case of a microcomputer, generates three buses that are a set of circuit connections. The computer program that the CPU executes is held in memory, which in microcomputers is invariably arranged in 8-bit (a bit is 0 or 1) locations. Input/output chips are used to connect the microcomputer to a wide variety of peripheral equipment (backing store, printer, VDU), data links to other computers, instrumentation and electrical equipment in control applications, displays of various types, and other devices. Microprocessors typically possess 3 or 4 interrupts. One interrupt (normally named RESET) is arranged to become set when the computer system is switched on or alternatively when a Reset pushbutton is pressed.
Publication Year: 1989
Publication Date: 1989-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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