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Q. Describe the Vertical Frequency or cycle?
Like a Fluorescent lamp, the screen has to repeat same image many times per second to display an image to user. The frequency of this repetition is known as Vertical Frequency or Refresh Rate.
If the resolution produced by the video card and monitor resolution is properly matched you get a good quality display. Though the actual resolution attained is a physical quality of monitor. In colour systems resolution is limited by Convergence (Do the beam of the 3 colours converge exactly on same dot?) and Dot Pitch. In monochrome monitors resolution is only limited by the highest frequency signals the monitor can handle.
In a DTMF phone, digits are represented by: (A) Orthogonal frequencies. (B) Orthogonal Phases. (C) Orthogonal codes. (D) Orthogonal pulses. Ans: Di
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This covers a number of game playing methods, notably checkers and backgammon because so much good research has been completed on these problems and because so many different metho
Determine the block diagram of bcd adder To add 0110 to binary sum, we use a second 4-bit binary adder. The two decimal digits, together with input-carry, are first added in to
Packet switching is used for (A) Credit card verification (B) Automated Teller Machine (C) The internet and the World Wide Web (D) All of the above Ans
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Trunks are the lines that run between (A) subscribers and exchange (B) switching system and power plant (C) Local Area Network (D) switching syste
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