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How M. Morris Mano and Michael D. Ciletti Updated the Classic Textbook on Digital Design for the 5th Edition


Digital Design: A Modern Update of a Classic Textbook




Introduction




Have you ever wondered how computers, smartphones, cameras, robots, and other electronic devices work? How do they process information, perform calculations, store data, communicate with each other, and interact with humans? The answer lies in digital design, which is the science and art of creating digital systems using binary logic.




Digital-Design-[5th-Edition]--M-Morris-Mano- amp -Michael-D-Ciletti



What is digital design?




Digital design is a branch of engineering that deals with designing, analyzing, and implementing digital systems using discrete values (usually 0 and 1) instead of continuous values (such as voltage or current). Digital systems are composed of digital components, such as transistors, diodes, resistors, capacitors, switches, wires, LEDs, etc., that can be arranged in various configurations to perform different functions.


Why is digital design important?




Digital design is important because it enables us to create complex and sophisticated electronic devices that can perform tasks that are impossible or impractical with analog systems. For example, digital systems can process large amounts of data faster and more accurately than analog systems; they can store and retrieve data more efficiently and reliably than analog systems; they can communicate with other digital systems using standardized protocols and formats; they can be programmed to perform different functions depending on the user's needs; they can be integrated into small and low-power devices that can be used in various domains; they can be easily tested, debugged, modified, and upgraded.


What are the main topics covered in this book?




This book is a modern update of the classic authoritative text on digital design by M. Morris Mano and Michael D. Ciletti. It teaches the basic concepts of digital design in a clear, accessible manner. It presents the basic tools for the design of digital circuits and provides procedures suitable for a variety of digital applications. The main topics covered in this book are:



  • Basic concepts of digital design, such as binary systems, Boolean algebra and logic gates, combinational logic circuits, and sequential logic circuits.



  • Design of digital circuits, such as registers and counters, memory and programmable logic devices, finite state machines, and synchronous and asynchronous circuits.



  • Applications of digital design, such as arithmetic circuits, computer architecture, microcontrollers and embedded systems, and digital signal processing.



The book also includes numerous examples, exercises, problems, and case studies to illustrate the concepts and techniques of digital design.


Basic Concepts of Digital Design




In this section, we will review the basic concepts of digital design that are essential for understanding and designing digital systems. We will start with the binary system, which is the foundation of digital design. Then we will introduce Boolean algebra and logic gates, which are the mathematical tools for manipulating binary values. Next, we will discuss combinational logic circuits, which are digital circuits that produce outputs based on the current inputs. Finally, we will explore sequential logic circuits, which are digital circuits that produce outputs based on the current inputs and the previous states.


Binary systems




A binary system is a system that uses two discrete values to represent information. The two values are usually denoted by 0 and 1, which are called binary digits or bits. A bit can be physically implemented by a device that can switch between two states, such as on/off, high/low, open/closed, etc. For example, a transistor can act as a bit by switching between conducting and non-conducting states; a diode can act as a bit by switching between forward and reverse bias states; a switch can act as a bit by switching between open and closed states; an LED can act as a bit by switching between lit and unlit states; etc.


A binary system can represent any type of information by using a sequence of bits. For example, a binary system can represent numbers by using different positional systems, such as binary (base 2), octal (base 8), decimal (base 10), hexadecimal (base 16), etc. A binary system can also represent characters by using different codes, such as ASCII (American Standard Code for Information Interchange), Unicode (Universal Character Set), etc. A binary system can also represent images by using different formats, such as bitmap (BMP), JPEG (Joint Photographic Experts Group), PNG (Portable Network Graphics), etc. A binary system can also represent sounds by using different formats, such as WAV (Waveform Audio File Format), MP3 (MPEG-1 Audio Layer III), AAC (Advanced Audio Coding), etc.


Boolean algebra and logic gates




Boolean algebra is a branch of mathematics that deals with logical operations on binary values. It was developed by George Boole in the 19th century and is widely used in digital design. Boolean algebra defines three basic logical operations: NOT, AND, and OR. The NOT operation reverses the value of a bit; the AND operation produces 1 if both bits are 1; the OR operation produces 1 if either bit is 1. These operations can be represented by truth tables that show the output for every possible input combination.


A NOT A --- --- 0 1 1 0 A B A AND B --- --- --- 0 0 0 0 1 0 1 0 0 1 1 1 A B A OR B --- --- --- 0 0 0 0 1 1 1 0 1 1 1 1 Boolean algebra also defines other derived logical operations, such as NAND (NOT AND), NOR (NOT OR), XOR (Exclusive OR), XNOR (Exclusive NOR), etc., that can be obtained by combining the basic operations. These operations can also be represented by truth tables.


A B A NAND B --- --- --- 0 0 1 0 1 1 1 0 1 1 1 0 A B A NOR B --- --- --- 0 0 1 0 1 0 1 0 0 71b2f0854b


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