CH1_LECTURE-3.pdf
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The document discusses the network, transport, session, presentation, and application layers of the OSI model. The network layer is responsible for logical addressing, routing, switching, and quality of service. The transport layer handles process-to-process delivery, port addressing, segmentation and reassembly, flow control, and error control. The session layer controls dialogs and synchronization, while the presentation layer handles translation, compression and encryption. The application layer provides user services like email, file transfer, and web access.
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This document provides an overview of combinational logic circuits. It defines combinational logic as logic circuits whose outputs are determined solely by the present combination of inputs. The document outlines different types of basic combinational logic circuits like AND-OR, AND-OR-Invert, XOR and XNOR. It also discusses implementing combinational logic using NAND and NOR gates. Additional topics covered include binary adders and subtractors, magnitude comparators, decoders, encoders, multiplexers and demultiplexers.
Chapter 3_Logic Gates (EEEg4302).pdf
This document provides an overview of common logic gates. It describes the operation and truth tables of inverters, AND gates, OR gates, NAND gates, NOR gates, exclusive OR gates, and exclusive NOR gates. Applications are given for each gate type, such as using an AND gate in a car seatbelt alarm system and using a NOR gate in an aircraft monitoring system. The document establishes that NAND and NOR gates are universal, meaning they can be combined to perform the functions of other gate types.
Chapter 2_Number system (EEEg4302).pdf
This document provides an overview of number systems covered in a digital logic design course. It discusses decimal, binary, hexadecimal, and octal number systems. For binary numbers, it describes conversion between decimal and binary, signed numbers using 1's and 2's complement representation, and arithmetic operations like addition, subtraction, multiplication, and division on signed binary numbers.
Chapter 1_Introduction to digital design (EEEg4302).pdf
This document provides an introduction to digital design. It defines digital and analog signals, with digital signals using discrete voltage levels to represent binary digits of 1 and 0, while analog signals have continuously varying voltage levels. Digital signals are more efficient for processing, transmission, storage and reproduction compared to analog signals. Logic levels define the high and low voltage ranges used to represent 1s and 0s. Digital waveforms switch between these logic levels over time. Digital logic design uses binary numbers to perform logic operations like AND, OR and NOT through logic gates to process inputs and outputs for computing and electronics applications.
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