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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 state of the register in Figure after every clock pulse if it begins in the 101001111000 state?
Properties : 1. Monetary Value: Monetary value must be backed by also cash, bank - authorized credit cards or bank certified cashier's cheque. 2. Interoperability: E-cash
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The desired level of coupling is:- Data coupling
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Q. Explain list directive in assembly language? A list directive causes assembler to generate an annotated listing on printer, video screen, disk drive or any combination of th
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