Understanding Computers and Data Processing: Today and Tomorrow

applications applications software assembly language BASIC bytes called cell Chapter characters chips COBOL commands communications computer system contains control structures created data processing database management delete design tools disk unit display devices Display terminal document dot-matrix EBCDIC electronic employee enable equipment example file managers floppy disk flowchart FORTRAN graphics hard disk hardware high-level languages IBM PC images input keyboard magnetic main memory mainframes microcomputer systems microprocessor minicomputers modem module operating system optical organization output devices primary memory printers problem processor productivity software programming language pseudocode puter record require secondary storage shown in Figure software package speed spreadsheet spreadsheet packages stored structure charts structured programming symbols system unit systems analyst systems development systems software tape teleprocessing tion track transmission types UNIX UNIX UNIX users vendor word processing worksheet