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What is the need of a hybrid in telephone networks?
Digital exchanges need receive and transmit signals upon separate two-wire circuits. It calls for two-wire to four-wire conversion. This conversion is normally needed for trunk transmissions in analog exchanges. The circuit which performs 2- wire to 4-wire conversion is termed as Hybrid. A transformer based hybrid circuit is demonstrated in figure. The critical function of a hybrid is to make sure that there is no coupling of signal from the input to the output in the 4-wire circuit.
The first part of the address in electronic mailbox identifies? The first part of address in E-Mail identifies the user's mail box.
Explain the term - ancestors The ancestors of modern age computer were mechanical and electro-mechanical instruments. This ancestry can be traced as back and seventeenth centur
Explain Clone process. A clone process is generated using primitive type clone by duplicating its parent process. However unlike traditional processes it might be share its con
In order to suppress the leading zeroes of a number field the which keywords is used ? NO-ZERO.
a. What is the meaning of user interaction? What are the dissimilar styles in which forms of interaction can be classified? Give one advantage, disadvantage and an example of every
Q. How to Change Default Drive in dos? To modify a default drive type the new drive letter followed by colon (:) and then press Enter. For example, if the default drive is A a
Q. Describe Memory and Memory unit? Input devices can fetch instructions or data only sequentially though a program may or may not be executed sequentially because looping, jum
An object model for university system Establishing relationship among various classes in the system is the primary activity. Here, we have a simple model of a University System
What is a spanning Tree? A spanning tree is a tree associated with a network. All the nodes of the graph appear on the tree once. A minimum spanning tree is a spanning tree
Testing Your Program All programs must be thoroughly tested before they are released to users. Create some sample input files of a small size and manually figure out what the o
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