This video explains the 7 layers of the OSI model of networking.
Data Communications & Networking
What is the OSI Reference Model? This is an important topic in all courses on computer science, information technology. This article discusses the OSI model of networking in detail, the role of each of the 7 layers, and the discussion on what is a protocol.
The term ‘protocol’ is heard very frequently in data communications and networking. What does ‘protocol’ mean? This article explains the computer communication process, what is a protocol, layered protocols, advantages of layered protocols, and defines what is an open system.
What is the 8421 code or the BCD code?
Click on the topic to start the quiz. On completing the quiz, you will immediately receive the correct answers on your email. Computer Fundamentals: Computer Fundamentals Digital Electronics, Digital Circuits and Systems: Computer Number Systems – Quiz 1 1’s and… Read More ›
In this video we discuss the conversion of Binary number to Hexadecimal Number
This video explains the process of converting a hexadecimal number to its binary equivalent.
This video lecture discusses the method of converting an octal number to its hexadecimal equivalent.
Sign extension of a binary number. This video explains what is sign extension of a binary number and why it is necessary. It also explains, with 3 examples, how to carry out sign extension of different types of binary numbers.