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COMMUNICATION CHANNELS:
A wire pair connecting two telephones is the simplest circuit, allowing communication in both directions. Other channels include coaxial cables, optical fibres, satellites, a light beam, microwaves, and others. Whatever the physical medium over or through which message travels, transmission may take place in a number of different modes. They are :
Simplex Half-duplex and Full-duplex. Simplex In this type of channel, the message travels in only one direction, that is from point A to point B but not back again.
Half-Duplex: Transmission can take place in either direction, but not at the same time. In other words, message can be transmitted either from A to B or by B to A one at a time.
Full-Duplex: In this type of arrangement messages can be transmitted and received over the same channel at the same time. Many librarians and information scientists are familiar with the latter two types because database search terminals must be set to transmit full or half duplex in order to communicate with database vendors' computers.
Question 1 Discuss the two basic operational characteristics of RR Only an active route is redistributed Route redistribution does not impact local route selection
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DIAGRMS OF TYPES OF LOCAL AREA NETWORK
Word Processing Software : The main use for word processing is found in secretarial offices and small publishing companies. However, if you are involved in generating your own cor
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Description A semaphore is a confined variable whose value can be accessed and changed only by the operations P and V and initialization operation known as ''Semaphoiinitislize''.
BUSES It can be seen from Figure 4 that there are three buses - the data bus, the address bus, and the control bus. Each bus consists of a group of parallel wires. The da
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Design Problem 1. Implement a basic file system managed from within a file. The file system should have the following capabilities: i. List files stored along with their sizes.
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