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Why must a modem be used to transmit binary data through a PSTN? (1) Use sketches and additional text to describe the following modulation methods. (a) Amplitude shift keying (b) Frequency shift keying (2) Discuss the factors that influence the choice of carrier frequency and the bandwidth used by the demodulator section of a modem.
Ethernet 10 Base 2 is an example of network topology. (A) Bus (B) Ring (C) Star
Define port? Give types of port available? Ans: An I/O interface consists of circuitry needed to connect an I/O device to computer bus. One side consists of a data path contain
Explain The Storage Class extern The Storage Class extern : One method of transmitting information across blocks and functions is to use external variables. When a variable is
What is the difference between Reply-to and Return-path in the headers of a mail function? Ans) Reply-to: Reply-to is where to deliver the respond of the mail. Return-pat
Define e-commerce? The term 'electronic commerce' has develop from electronic shopping, to imply all aspects of business and market processes enabled by the Internet and World
Types of Bus: Synchronous Bus All devices gain timing information from a common clock line. Each of these intervals constitutes a bus cycle at the time duration w
Discuss the WAP stack in brief. The protocol stacks part implemented by WAP Stack for the WAP development and research platform. The protocol stack will be exploited into many
What is a microform? This is the collective term for all micro images kepted on a wide range of microfilm media, like roll film, fiche, aperture cards, strip or jackets.
What are wired and wireless transmission systems? Transmission Systems: Modern type long distance transmission systems can be placed in three wide categories: 1. Radio Sy
What is DRAM? What do you understand by DRAM refreshing? With the help of a block diagram, demonstrate how DRAM can be interfaced to a microprocessor. Dynamic RAM (DRAM) is bas
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