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Frequency and Bandwidth:
Let us try to understand a little about how information is transmitted. The information may be in the form of sound (human voice, music) or it may be visual (printed page, microfilm, video picture) or it may be digital data. Whatever may be the form, it must be converted to electrical signals (electromagnetic waves) before it can be transmitted over a given medium. Such signals very often cannot be sent over a channel as they are, but must be modulated in some way to fit them into the carrying medium. The frequencies of the electromagnetic waves are normally radio frequendies which range from low frequencies capable of carrying only small amounts of information to millimeter waves, which can carry very large amounts. Above the radio frequencies lies light frequency, which can be modulated to carry even larger amounts of information. In other words, the amount of information that can be sent over a given channel in a given time is dependent on the bandwidth. The bandwidth available increases with increasing carrier frequency. Thus, generally speaking the wider the bandwidth, the larger the amount of information which can be carried and the faster its speed.
1.Add a Validation Rule for Date of Birth so no one under the age of 18 can be added to the table. Hint: subtract the DOB from today''s date and divide by 365.25 (watch the parenth
help please
Help with MST algorithm
even though most systems only distinguish among user and kernel modes, some CPUs provide multiple modes. Multiple modes could be used to provide a finer-grained security strategy.
Memory unit of computer: The Memory unit is an important component of a computer where all the data and information are stored in the form of binary digits (combination of 0
when was the first computer made
difference between a compiler and a translator
NUMBER SYSTEM: We are familiar with decimal number system which uses ten distinct symbols from 0...9, and has base 10. In the decimal number system a number n 4 n 3 n 2 n 1
Greedy Search-artificial intelligence: If we have a heuristic function for states, as defined above, then we may simply measure each state with respect to this measure an
Create systems flow chart and state tranistion diagram for online placement and consultancy
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