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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.
Q. Register-to-register operands in RISC? Register-to-register operands: In RISC machines operation which access memories are LOAD and STORE. All other operands are kept in reg
One of the most important competitive strategies for E-Businesses today is business process reengineering. BPR is more than automating business processes to make modest improvement
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Transfer Functions Change the last bilinear interpolated images and the original images into the frequency domain using the FFT. Try to measure the magnitude transfer functio
Explain CGI standard. The CGI Standard: Technology utilized for building dynamic web documents is termed as Common Gateway Interface (CGI). The CGI standard gives how a serv
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Define Edge Triggered D flip-flop? D latch has only two inputs C(control) and D(data). The operation of a D flip-flop is a lot simpler and it has only one input addition to the
what is penetration technique
How are interrupt handled by the operating system? The fundamental interrupt mechanism works as follows: The CPU hardware has wire called the interrupt-request line which
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