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Q. Explain Keyboard Input and Video output ?
A Keystroke read from keyboard is termed as a console input and a character displayed on the video screen is known as a console output. In assembly language reading and displaying character is most tiresome to program. Though these tasks were greatly simplified by convenient architecture of 8086/8088. Thatarchitecture offers for a pack of software interrupt vectors starting at address 0000:0000.
The benefits of this type of call is that it appears static to a programmer however flexible to a system design engineer. For illustration INT 00H is a special system level vector which points to the 'recovery from division by zero' subroutine. If new designer come and want to move interrupt location in memory it adjusts entry in the IVT vector of interrupt 00H to a new location. So from the system programmer point of view it's relatively easy to change vectors under program control.
What is cyclomatic complexity? Cyclomatic complexity is a computer science metric (measurement) developed by Thomas McCabe used to generally calculate the complexity of a progr
Q. How are control signals achieve the particular operation? The control signals are applied directly as binary inputs to the logic gates of the logic circuits. All these input
Give the circuit of a TTL NAND gate and explain its operation in brief. Ans: Operation of TTL NAND Gate: Fig.(d) Demonstrates a TTL NAND gate with a totem pole output.
Why address bus is unidirectional and data bus is bidirectional? Ans) Because there is no require address transaction among processor and peripheral device but data bus is req
Explain the uses of Keyboards An alphanumeric keyboard for a graphics system is used primarily as a device for entering text strings. Keyboards can also be provided with featur
Reduce the following equation using k-map Y = BC‾D‾ + A‾BC‾D + ABC‾D + A‾BCD + ABCD Ans. Multiplying the first term with (A+A') Y = A'BC'D' + ABC'D' + A'BC'D + ABC'D + A'BCD +
application of de moiver theorem in software engineering
The Concept of Process Informally, a method is a program in execution, behind the program has been loaded in the main memory. However, a method is more than just a program code
The excess 3 code of decimal number 26 is ? Ans. (26) 10 in BCD is (00100110) BCD Add 011 to all BCD 01011001 for excess - 3
Explain Direct or Indirect Communication in Inter-process communication. Several types of message passing system in Direct or Indirect Communication are given below:
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