Data Communications & Networking

Digital Systems – Advantages and Disadvantages

Digital systems are systems that use discrete values to represent information or data. They offer advantages such as high accuracy, easy storage and transmission, easy manipulation, reliability, and scalability. However, they also have disadvantages such as limited resolution, sampling errors, higher cost, data security concerns, and dependency on technology.

The TCP/IP Protocol

What is TCP / IP?  TCP – Transmission Control Protocol   IP – Internetwork Protocol   TCP/IP refers to a collection of protocols   The name TCP/IP is misleading because TCP and IP are only two of the many  protocols in this collection… Read More ›

OSI Model: A Complete Overview of Its Layers and Functions

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.

Data Communications Protocols: Everything You Need to Know (Part 1)

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.

Quiz Page – Computer Science, Computer Engineering, IT

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 ›

What is Sign Extension of a Binary Number?

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.