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Basic Theory Systems Components and Techniques
Operating Characteristics and Costs of Various
20 characters acoustic delay lines application binary coded decimal bits box number buffer storage card punches cards a minute cathode ray tubes central processing unit characters a second characters an inch circuits contained in box control unit cost data and instructions data on magnetic data-processing routine decimal digits digits plus sign electronic data electronic data-processing system electronic system Flexowriter Function inches a second input preparation equipment input-output line printers lines a minute Magnetic Core Memory magnetic cores magnetic drum Magnetic Tape Description Magnetic tape units manipulation Maximum number memory cell milliseconds number contained Operating Characteristics Circuitry paper the number payroll performed piece of paper previous balance primary storage printed pulses punched cards punched paper tape punched-card Read-write speed Recording density reel containing secondary storage source documents Speed of Basic storage device storage unit stored subtraction symbols tape punch tion transcribed tubes typewriter Unityper Univac Word length work-order data