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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.
Explain difference between macro call and macro expansion. Macro expansion: While a macro name is used along with a set of actual parameters this is replaced through a code g
Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve betw #includ
With neat diagrams explains the configuration of a step-by-step switching system. The schematic diagram for an exchange is specified in figure. Each subscriber is associated to
Make a class library and describe class 'User'. In User class describe the public, protected and Friend functions. Make a console application andadd a reference to this library and
A. F(X, Y, Z) = ∑(0, 1, 2, 6, 7) using TRUTH TABLE only B. F(X,Y,Z) = ∑ (4,6,7,8) + D(2,5,11,12) using K-Map 1. Find SOP expression 2. Simplify SOP expression 3. Implem
What is store program control (SPC)? Within stored program control systems, a program or set of instructions for the computer that is stored in its memory and the instructions
Q. Describe about Digital Audio Tape? The most proper tape for backing up data from a disk today is Digital Audio Tape (DAT). It employs a 4mm tape covered in a cartridge. It e
A Scrollbar is a Component, but not a Container while Scrollpane is a Container and handles its own events and do its own scrolling.
In the past there was a large gap between speed of a memory andprocessor. So a subroutine execution for an instruction for illustration floating point addition may have to follow a
How different are interface and abstract class in .Net? Abstract classes cannot be instantiated it can have or can't have abstract method basically known as must inherit as th
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