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Q. Why we use Modem?
A Modem is one device which most computer users who have surfed Internet are aware of. A modem is neededsincehowever most of telecommunications have become digital most telephone connections at user end are still analog POTS (Plain Old Telephone Systems/Sets/Service). But the computer is a digital device and henceforth another device is requiredthat can convert digital signals to analog signals and vice-versa. Such a device is Modem. Modem signifies Modulator/Demodulator. Modulation is process that puts digital information on to analog circuit by modifying a constant wave (signal) known as the Carrier. This is what happens whenever you press a button to connect to Internet or to a web site. Demodulation is reverse process that derived digital signal from modulated wave. This is what happens when you receive data from a website which then gets displayed by your browser.
Any data storage device. This having of your CD-ROM drive, hard disk drive and floppy disk drive.
Overlay Graph: It overlay the content of two graphs that shares an ordinary x-axis. Left Y-axis on the merged graph show's the present graph's value & Right Y-axis illustrate the v
Q. Define Colour Depth in graphic display system? It is clear that an image contains an array of pixels. If we tell which pixels are 'off' and which are 'on' to the monitor, i
every source is coherent source-justify it?
design a dfa which accept all the string over a and b ending with ab or ba
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Question 1: (a) What is the difference between IT (Information Technology) and ICT(Information Communication Technology) (b) Explain why information systems are so im
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Define the term Electronic Cheques in briefly. The other mechanism for Internet payment is electronic cheques. Along with electronic cheques, there payer (either a business or
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