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Q. Illustrate Diffrent types of modems?
There are four different types of modems: half-duplex, full-duplex, synchronous, and asynchronous.With half-duplex modems data can be transmitted in only one direction at a time. Full- duplex modems transmit data in both directions at the same time; one modem is designated as the originating modem and the other as the answering modem, while transmitting and receiving data are done at different frequencies. Asynchronous modems are low-data-rate modems transmitting serial data at a rate of about 1800 bits per second (bps). Synchronous modems are high-data-rate modems transmitting serial data at a rate of about 10,800 bps.
Modems can also be classified as voice-band or wide-band modems. Voice-bandmodems are low-to-high speedmodems designed for use on dial-up, voice-grade, standard telephone lines up to a rate of about 10,800 bps.Microprocessor-controlledmodems are known as smart modems, such as the Hayes modem, manufactured by Hayes Microcomputer Products. The portable acoustic- coupler device, which is a different type of voice-band modem, is a low-speed modem with a rate of about 600 bps that is connected acoustically to a standard telephone. Wide-band modems are very high-speed modems with rates of 19,200 bps and above, designed for use with dedicated telephone lines. These are currently used mostly on private communications systems.
(a) Explain the following terms: Information System and Information Technology. (b) Describe the main components of a computer. Illustrate your answer by a block diagram. (c)
1+1
Sigmoid units: Always remember that the function inside units take as input the weighted sum, S and of the values coming from the units connected to it. However the function i
Q. Explain Fixed Point Representation? The fixed-point numbers in binary has a sign bit. A positive number has a sign bit 0 whereas negative number has a sign bit 1. In fixed-p
Which is not a layer of IO management module? Ans. MCS that is Management Control System, is not a layer of IO management module.
What do you mean by data warehousing? Data warehouse implies as: a) It is subject oriented b) It is integrated and c) It is time variant d) It is non-volatile colle
Define the term Intranet. Intranet: An Intranet is a type of information system that facilitates communication within the organizations among widely dispersed department
my project is in .net of lan chatting its have tcp\ip connection problem
Clients that join to a WebLogic Server cluster and look up a clustered object get a replica-aware stub for the object. This stub haves the list of available server instances that h
Quadratic probing: In the above case when the first insertion is made the probability of latest element being inserted in a certain position is 1/n where n is the size of the a
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