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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.
In a virtual memory system, the addresses used by the programmer refers to (A) Memory space. (B) Physical addresses. (C) Address space. (D) M
Communications Parallel tasks classically need to exchange data. There are many ways in which this can be accomplished, such as, through a network or shared memory bus. The act
In this technique, operand field of instruction includes an address and an index register thatcomprises an offset. This addressing scheme is normally used to address the consecutiv
How many "true" terrorists are there in the US? I don't know, but let's suppose that there are 3000 out of a total population of, say, 3,000,000. That is, one person in 100,000 i
There are three primary colours in pigments - Red, Yellow and Blue. There are two ways to produce more colours: Physical Mixing: Physically mix colours to produce a new colour
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How to send a report to the printer instead of displaying it on the screen? We can send a report to the printer instead of displaying it on the screen. To do this, use the key
Q. Explain Disk Cartridges ? Disk Cartridges: Removable disk cartridges are an option to hard disk units as a form of secondary storage. Cartridge generally comprises one or
If the input to T-flipflop is 100 Hz signal, the final output of the three T-flipflops in cascade is ? Ans. The final output of the three T-flip-flops in cascade is 12.5 H
Describe about the role of bitmap indexes to solve aggregation problems? Ans) Bitmaps are very useful in begin schema to join large databases to small databases. Answer queries
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