This industry group comprises establishments primarily engaged in manufacturing computers and computer peripheral equipment. Computers can be digital, analogue or hybrid. Digital computers, the most common type, are devices that can do all of the following: (1) store the processing program or programs and the data immediately necessary for the execution of the program; (2) be freely programmed in accordance with the requirements of the user; (3) perform arithmetical computations specified by the user; and (4) execute, without human intervention, a processing program that requires the computer to modify its execution, by logical decision, during the processing run. Analogue computers are capable of simulating mathematical models and comprise, at least, analogue, control and programming elements. Peripherals are assemblies of components that are self-contained, but designed for use with computers. For purposes of classification, a peripheral must consist of more than a loaded circuit board. Peripheral equipment may be installed inside or outside the computer's housing. Important types of peripheral equipment are input-output devices, such as monitors, keyboards, mice and joysticks; storage devices, such as disk drives and CD-ROM readers; and printers. Dumb computer terminals, automated teller machines (ATM's), point-of-sale (POS) terminals and bar slug scanners are treated as peripheral equipment. Computers and peripheral equipment may be sold complete or in kits to be assembled by the purchaser.

This industry group comprises establishments primarily engaged in manufacturing equipment used to move signals electronically over wires or through the air, such as telephone apparatus, radio and television broadcast equipment, and satellite communications equipment.

This industry group comprises establishments primarily engaged in manufacturing electronic audio and video equipment.

This industry group comprises establishments primarily engaged in manufacturing semiconductors and other electronic components. The following activities involving printed circuit boards are undertaken in this industry group: the production of the laminate material; the manufacture of the bare (rigid or flexible) printed circuit boards without mounted electronic components; and the loading of electronic components onto the boards.

This industry group comprises establishments primarily engaged in manufacturing navigational, measuring, medical and controlling devices.

This industry group comprises establishments primarily engaged in manufacturing magnetic and optical media, and the mass reproduction of recordings on such media. The media include audio and video tapes, diskettes, hard disk media and CD-ROMs. The products of the industry are blank media; and software (shrink-wrapped), audio, video, and multimedia products recorded on these media.