Digital Computers; Pre-Recorded Computer Programs in the Form of Magnetic Tape Recordings (on Tape Reels, Disks, or Cassettes) or Electronic Chips-Namely, Operating Systems for Controlling Digital Computer Operation, Computer Language Processors (Such as Fortran and Cobal), Computer Performance Test Diagnostic Programs, Assembler Programs for Producing Machine Instructions from Symbolic Input Data, and Compiler Programs for Translating User Programs into Machine Language Programs; Components of Electronic Digital Computers-Namely, Core Memories, Programmers' Consoles, Input/Output Distributors for Interfacing Peripherals to a Computer, Communication Interfaces for Connecting Digital Computers to Telephone Lines, Housings for Packaging Digital Computer Circuitry Together in a Chassis with a Card Cage and Power Supply for Providing the Voltages Used by the Digital Computer Circuitry; Peripheral Computer Equipment-Namely, Magnetic Data Storage Disk Drives, Magnetic Data Storage Tape Drives, Video Computer Terminals, Computer Data Printers, Computer Paper Tape Reader/Punch Machines, Computer Line Printers, and Computer Paper Card Readers; and Computerized Automatic Test Equipment Having Test Stations for Applying Electrical Signals to Electronic Circuitry Under Test, and for Evaluating Electrical Signals Received from the Electrical Equipment Under Test