by admin | Jun 7, 2015 | sem3
Pulse Amplitude Modulation Pulse Amplitude Modulation is “pulse shaping”. Essentially, communications engineers realize that the shape of the pulse in the time domain can positively or negatively affect the characteristics of that pulse in the frequency...
by admin | Jun 7, 2015 | sem3
Serial and Parallel Interfaces In telecommunication and computer science, serial communication is the process of sending data one bit at a time, sequentially, over a communication channel or computer bus. This is in contrast to parallel communication, where several...
by admin | Jun 7, 2015 | sem3
Data communication Hardware The transfer of data over a communications circuit requires appropriate hardware and software. Once these are working you can use various applications for the following services and operations:- Internet Having registered with an Internet...
by admin | Jun 7, 2015 | sem3
Error Detection and Correction There are many reasons such as noise, cross-talk etc., which may help data to get corrupted during transmission. The upper layers work on some generalized view of network architecture and are not aware of actual hardware data...
by admin | Jun 7, 2015 | sem3
Data Communication Codes DATA CODES This refers to the way in which data is represented. The sender and receiver must use the same code in order to communicate properly. Here, we will briefly look at two common codes, one which was developed earlier on and was widely...
by admin | Jun 7, 2015 | sem3
Data Communication Circuits Circuit configuration is the basic physical layout of the circuit. There are two fundamental circuit configurations: point-to-point and multipoint. In practice, most complex computer networks have many circuits, some of which are...
