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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.
Objectives of object oriented analysis After going through this unit, you should be able to: define the concepts of the objects in the system; express desired syste
Explain 100 line exchange with two-motion line finders. Design: In such design, here are 24 line finders. When any of the 100 subscribers has to find access to any of the 24
Q. Working of Read-Only Memory? A ROM is fundamentally a memory or storage device in which a fixed set of binary information is stored. A block diagram of ROM is as displayed i
Q. For function F(x,y,z) = ∑m (1,2,3,5,6) using TRUTH TABLE only 1. Find POS expression 2. Implement this simplified expression using two level OR-to-AND gate network 3. I
What is Boundary Scan? Boundary scan is a board level design method that provides test access to the input and output pads of ICs on PCBs. Boundary scan changes the IO circuit
Q. What is the dissimilarity between dynamic strain aging and strain aging? Answer:- Strain aging could be explains as "normal wear and tear" or the fatigue that is experi
The field SY-DYNR refers to Number of the current screen.
Stack is a portion of RAM used for saving the content of Program Counter and common purpose registers. LIFO stacks, also called as "push down" stacks, are the conceptually easi
Disadvantages 1. The X12 standard is so large and general 2. EDI communications negotiate a technical agreement to explain exactly what subset of EDI they will use
Q. Show layout 84-key Keyboards? PC 83-key was the earliest keyboard provided by IBM with its first Personal Computers (PC). This had 83 keys. Afterwards IBM added one more key
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