By John Y. Hsu
ISBN-10: 1461265428
ISBN-13: 9781461265429
ISBN-10: 1461300479
ISBN-13: 9781461300472
An knowing of contemporary laptop good judgment - incorporating center wisdom of quantity platforms, quantity conversions, Boolean algebra, stories, and good judgment circuits - is key to extra research of desktop architectures, approach software program, and laptop networks. Computer common sense: Design rules and Applications introduces and describes the proper thoughts, rules and functions of contemporary desktop common sense layout. The e-book is self-contained, with an introductory bankruptcy that concisely covers the background of computing units, in addition to quantity structures, quantity conversions, signed and unsigned integers, exterior code, and electronic and digitizing recommendations. devoted chapters on Boolean algebra, transistor circuits, combinatorial common sense circuits, and sequential good judgment circuits around off the paintings. The emphasis is on layout and applications.
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Example text
In this century, we live in an exciting world with digital data, voice, and video, and the digital signals are transmitted, received, and processed by computers. In a digital computer, logic circuits are designed to process and store bits. In order to fully understand computer logic, it is important to study the next chapter on Boolean algebra. 8 Summary Points 1. A digital computer has three major components: CPU, memory, and 1/0 controller. 2. Computers use the base 2 number system, so a digital signal has two voltage levels.
The two steps are shown here: \f1 EXAMPLE \(\A . \13) . \C = (A + B) . 2. (\A3+\Al) In this example, we can write the complement function V2 directly. We can expand the product terms in four steps and get the same result. We would like to design logic circuits with AND, OR, and NOT gates because they are more intuitive. 4 Other Logical Operators In practice, there are many other logical operators, each of which is implemented by a logic circuit. Thanks to DeMorgan's theorem we can design any logic circuit with only NAND and NOT gates.
F1 VI = = (\A . \13) + C (A + B) . \C The complement function VI can be written directly in one step. However, in order to see this, we can apply DeMorgan's theorem to this equation in two steps. First, treat what is grouped in the parentheses as one variable and apply DeMorgan's theorem to expand the group and the variable C. Then apply DeMorgan's theorem again to obtain the final result. The two steps are shown here: \f1 EXAMPLE \(\A . \13) . \C = (A + B) . 2. (\A3+\Al) In this example, we can write the complement function V2 directly.