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Company: ITT (International Telephone & Telegraph)
Based: Detroit, MI. Founded: 1920 Founder: Sosthenes Behn and Hernand Behn Specialty: International telecommunications manufacturing & Systems. Defense Contractor. ITT's Semiconductor division manufactures consumer audio, video and text IC's, Automotive products and controllers. |
ITT System 12 / Network 2000 ESS 1240 Switch-Port Chip (1982)

Item #467
ITT's System 12 (formerly known as ITT-1240) Electronic Switching System ( ESS) was a new generation of digital switching equipment designed by ITT to fulfill the needs of a future Integrated Services Network concept that was know as Network 2000. Four models were designed: ITT 1210, 1220, 1230 & 1240.
ITT produced the 1240 digital exchange for voice and data. LSI and commercially available microprocessors were used for line and trunk interface units that were Microprocessor controlled.
"The small device embedded in this paperweight is an LSI Switch-Port chip, a key element in the ITT 1240 Digital Switching Exchange. Measuring less than one-quarter af an inch square, the circuit contains more than 12,000 transistors. 16 of these chips mounted on a printed circuit board constitute a Digital Switching Element, a fundamental functional element of the ITT 1240 Digital Switching Exchange."
ITT produced the 1240 digital exchange for voice and data. LSI and commercially available microprocessors were used for line and trunk interface units that were Microprocessor controlled.
"The small device embedded in this paperweight is an LSI Switch-Port chip, a key element in the ITT 1240 Digital Switching Exchange. Measuring less than one-quarter af an inch square, the circuit contains more than 12,000 transistors. 16 of these chips mounted on a printed circuit board constitute a Digital Switching Element, a fundamental functional element of the ITT 1240 Digital Switching Exchange."
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IBM Intel ITT LSI Memorex Micron MIT Microvision Motorola National Semi
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AMD Amdahl Analog Devices Apple Atari AT&T Bell Labs Burroughs
Control Data Cray Cyrix Data General DEC ESI Fujitsu HP Hughes
IBM Intel ITT LSI Memorex Micron MIT Microvision Motorola National Semi
NCR NEC Nvidia Panasonic PHILCO PMI RCA Remington Rand Samsung
Signetics Sperry Sun Microsystems TSMC UNIVAC Western Electric Etc.








