A Collector's Guide to Personal Computers and Pocket Calculators
Books Americana, 1993 - Microcomputers - 366 pages
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5.25-inch floppy drive 80 characters advertised Altair Announced Apple assembled August BASIC batteries black-and-white built-in bytes calculator Capacity Cassette color cont controller Corp Cost CP/M Data storage Data Systems designed device Digital Display Dot matrix Dual early electronic expandable expandable to 64 expansion slots external floppy disk drive four function keys graphics hard drive included initially Integral Intel interface Introduced June keyboard later lines lines of 80 machine March memory microcomputer microprocessor Model modem monitor Motorola MS-DOS November numeric keypad operating system Operator input optional parallel port personal computer Physical pixels portable pounds printer Processor Production production by 1984 production by July Program running Scientific September serial ports single sold Speed standard supply tape Technology terminal Type unit Value weighed Zenith Data Systems Zilog