The digital revolution

Chapter The digital revolution

Teach Yourself Electricity and Electronics Third Edition Book
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Summary of Contents

Teach Yourself Electricity and Electronics Third Edition Book

  • The digital revolutionThis chapter has touched upon digital basics, but cannot possibly go into depth. Thescope of digital electronics is vast, and it grows and changes daily. If you are studying tobe an electrical engineer, you’ll take numerous courses in digital electronics.Specialties include data communications, video communications, satellite communi-cations, space communications, navigation, medical devices, modems, calculators, com-puters, video games, control systems, and so on almost ad infinitum. It would be easyto fill a book as large as this one with material devoted only to digital technology. Engi-neers devote careers to fields as specific as digital signal processing, digital CD record-ing, or digital robotics-control devices.During the 1980s, digital technology replaced analog circuits in everything fromwristwatches to radios. Along with proliferation, costs have plummeted while sophistica-tion has grown geometrically. These trends will continue in the twenty-first century.QuizRefer to the text in this chapter if necessary. A good score is at least 18 correct. Answersare in the back of the book.1. The value of the decimal number 23 in binary form is:A. 1011.B. 110111.C. 10111.D. 11100.2. The binary number 110001 represents the digital number:A. 49.B. 25.C. 21.D. 13.3. The fifth digit from the right in a binary number carries a decimal value of:A. 64.B. 32.C. 24.D. 16.4. The largest possible decimal number that can be represented by six binarydigits (bits) is:A. 256.B. 128.C. 64.D. 63.568 Basic digital principles