Principles of CMOS VLSI design: a systems perspective
Principles of CMOS VLSI design: a systems perspective
The essence of logic circuits
Digital design principles and practices
Digital design principles and practices
Modern VLSI design (2nd ed.): systems on silicon
Modern VLSI design (2nd ed.): systems on silicon
Introduction to VLSI Systems
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Although the development of digital computers can be traced back to Charles Babbage, who conceived a mechanical machine with toothed wheels to perform arithmetic processes, electrical principles first found application in digital computers in the form of electromechanical relays. The most prominent examples of this type of computer are the Bell Labs relay machines (q.v.) and the Harvard Mark I (q.v.) and Mark II. Even while these machines were under construction in the early and middle 1940s, it was recognized that an electronic computer would offer great advantages in terms of computational speed. Electronic computers use electronic circuits that interconnect electronic components called gates. Gates implement basic operations called Boolean or logic functions. This article starts with a brief overview of Boolean algebra, the theory that underlies such circuits.