Archive for the ‘Notes’ Category

• GPRS Architecture in Mobile Communication

  Oct 29, 13 • 27327 Views • Notes • Top Coaching Institute • 1 Comment

  General packet Radio Service (GPRS) is a enhancement of GPS, which is packet oriented mobile data service on the 2G and 3G cellular communication system.  It provide connection to the external packet data network through the GSM infrastructure with short

• Network Switching Subsystem in GSM

  Oct 29, 13 • 13282 Views • Notes • Top Coaching Institute • 1 Comment

  Network Switching Subsystem (NSS), handels the switching of GSM calls between external networks and the BSCs in the radio subsystem. This system is responsible for managing and providing external access to the several customer database. NSS is one of the most

• Introduction to Flip Flops and Latches

  Oct 29, 13 • 14277 Views • Notes • Sachin Pal • 2 Comments

  Latches and flip-flops are the basic elements for storing information. One latch or flip-flop can store one bit .There are basically four main types of latches and flip-flops: SR, D, JK, and T. The major differences in the flip flop. How can we make a circuit

• Classification of Signals as Causal, Non-Causal and Anti-Causal Signals

  Oct 26, 13 • 36047 Views • Notes • neelu kumari • 7 Comments

  The concept of signal arises in a wide variety of fields of science and technology as in communication, circuit design, seismology, bio medical engineering and speech processing etc. In simple terms anything that carries some sort of information is known as a

• OSI Model in Data Communication and Networking

  Oct 26, 13 • 15041 Views • Notes • Kamal Singh • 1 Comment

  Computer Users are located over a worldwide physical range. Therefore, in order to ensure that nationwide and world wide communication system can be developed ans are compatible to each other, an international group of standards are developed. These standards