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Q. Interfacing of keyboards?
The keyboard employs a special Input/output port which is similar to a serial port however doesn't explicitly follow the RS-232 serial port standard. In place of multiple data and handshaking signals as in RS-232 the keyboard employs just two signals by which it manages a bi-directional interface with its own set of commands.
Employing its elaborate handshaking mechanism keyboard and PC transmit commands and data to each other. USB keyboards work in a different way by using USB coding and protocol.
What is the difference between VB6 and VB.Net? 1,Object-based Language 2,Doesnot support Threading 3 Not powerful Exception handling mechanism 4,Does not having suppor
explain djnz instruction of intel 8051 microcontroler
If the product of two integers a and b is even after that prove that either a is even or b is even. Answer: It is illustrated that product of a and b is even so let a * b = 2n.
Illustrate how 74147 series TTL can be used as a decimal-to-BCD encoder. Ans. Available IC in 74 series is 74147 that is a priority encoder. Such IC has active low inp
Recombination and Mutation: In such a scenario the point of GAs is to generate population after population of individuals that represent possible solutions to the problem at h
Q. Calculate Print Speed of printers? Speed at which a printer prints is generally an important issue. Though the printer has to take a certain time to print. Printing time ris
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Vector reduction Instructions When operations on vector are being decreased to scalar items as a result then these are vector reduction instructions. These instructions are ref
How does the Applet update its window when information changes? Whenever an applet requires to update the information displayed in its window, this simply calls repaint ( ) way
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