001: 32562
003: Starlibrary PMS 4.5
005: 20180420
020: ^a0-13-085634
066: ^aro.D
072: ^aIntroductory Concepts
082: ^a621
100: ^aronald
240: ^aDigital Systems principles and applications
245: ^aDigital Systems principles and applications
260: ^c2001
650: ^aLogic Gates and Boolean Algebra
650: ^aNumber Systems and Codes