Part 8: FDM & TDM in Data Communication

Part 8: FDM & TDM in Data Communication

  Signal multiplexing is a process in which multiple signals can be transmitted together over the same communication medium simultaneously. Time division multiplexing Time division multiplexing is a technique of separating the signals in time domain. In TDM the...

Part 5: Modulation in Data Communications

Part 5: Modulation in Data Communications

Analog to Analog Modulation Analog-to-analog conversion, or modulation, is the representation of analog information by an analog signal. It is a process by virtue of which a characteristic of carrier wave is varied according to the instantaneous amplitude of the...

Part 2: Data Communication – Network Models

Part 2: Data Communication – Network Models

Networking Network A network is a set of devices (often referred to as nodes) connected by links. A node can be a computer, printer, or any other device capable of sending and/or receiving data generated by other nodes  on the network. Network criteria Performance...

Part 1: Introduction to Data Communications

Part 1: Introduction to Data Communications

Data Communications Data Communications :  Data Communication is the exchange of data (in the form of 0’s and 1’s) between two devices via some form of transmission  medium (such  a cable). In other way can define, Data Communication is a process of exchanging data or...

Frequency Word for IELTS Listening

Frequency Word for IELTS Listening

Frequency Word for IELTS Listening School a. Library  WordSentence1. Shelf 2. Librarian 3. The stacks 4. Return 5. Fine 6. Magazine 7. Copier  8. Overdue  9. Reading room  10. Reference...

Chapter 5: System request on SDLC

Chapter 5: System request on SDLC

System Request In most organizations, project initiation begins by preparing a  system request. A  system request is a document that describes the business reasons for building a system and the value that the system is expected to provide.The project sponsor...