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A+ Core Hardware & Operating System

A+ Core Hardware & Operating System. Historical Perspective. Hardware Intel 8080 microprocessor Intel 8086 prototype microprocessor IBM PC Intel 8088 5.25” floppy drive 64 KB RAM Power-on self-test. Operating System Computer Program for Microcomputer (CP/M)

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A+ Core Hardware & Operating System

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  1. A+ Core Hardware & Operating System Historical Perspective Instructor Robert Wiley

  2. Hardware Intel 8080 microprocessor Intel 8086 prototype microprocessor IBM PC Intel 8088 5.25” floppy drive 64 KB RAM Power-on self-test Operating System Computer Program for Microcomputer (CP/M) Quick & Dirty Operating System (QDOS) – 6wks Microsoft Disk Operating System (MS-DOS) Command Line Input CP/M clone Personal Computer (PC) History Instructor Robert Wiley

  3. Hardware IBM PC XT 10 MB hard drive 640 KB RAM Expanded memory IBM PC AT Intel 286 (i.e. 80286) 1.44 MB floppy drive 20 MB hard drive Color video card Extended memory Operating System MS-DOS 2 Command-line interface Conventional memory Real-mode programs MS-DOS 3 Networking No Graphical User Interface (GUI) Protected mode programs Personal Computer History Instructor Robert Wiley

  4. Hardware Xerox Palo Alto Apple Macintosh IBM Personal System/2 PS/2 mouse Intel 386 (486) CPU 3.5" 1.44 MB floppy Operating System Graphical User Interface MAC OS/2 2.0 32-bit multi-tasking Personal Computer History Instructor Robert Wiley

  5. Hardware IBM PC compatible Serial Mouse Intel 386 (486) CPU Intel Clones (e.g. AMD) PC compatible Intel 386 Expanded & extended memory dilemmas Operating System MS-DOS 5 EDIT command QBASIC.EXE UNDELETE MS-DOS 6 EMM386.EXE Disk Compression Personal Computer History Instructor Robert Wiley

  6. Hardware PC Intel 486 machines Expanded memory card obsolete Operating System Windows 3.x Co-op multi-tasking Virtual memory Graphical Interface Underlying OS functions were performed by DOS Personal Computer History Instructor Robert Wiley

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