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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.
A universal logic gate is one, which can be used to generate any logic function. Which one is a universal logic gate? Ans. NAND gate is a universal logic gate; it can generate
Q. What is Input - Output Instructions? An I/O instruction is stored in memory of computer and is fetched as well as executed by processor producing an I/O-related command for
What is digital decoders
The process of entering data into a ROM is called ? Ans. The process of entering data in ROM is termed as programming the ROM.
Q. Illustrate Domain Name System? Domain name is a name which is given to a network for ease of reference. Domain refers to a group of computers which are known by a single com
What is the length of function code at user-command? Every menu function, push button, or function key has an associated function code of length FOUR (for example, FREE), which
Can we display a list in a pop-up screen other than full-size stacked list? Yes, we can show a list in a pop-up screen using the command WINDOW with the additions beginning at
Q. Show the Classification of Printers? Printers can be classified on following bases: a) Impact: Impact printers print by impact of hammers on ribbon (for example Dot-Matri
First-Order Logic : There's Reasoning, and then There's Reasoning As humans, we have always prided ourselves on our capability to think things by: to reason things out and c
How call processing takes place? Fundamental Call Procedure: Fig. demonstrates a simplification diagram exemplifying how two telephone sets (as subscribers) are interconnecte
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