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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.
Implement the following function using a 3 line to 8 line decoder. S (A,B,C) = ∑ m(1,2,4,7) C (A,B,C) = ∑ m ( 3,5,6,7) Ans. Given function S (A,B,C) = m (1,2,4,7)
Q. How do the registers help in instruction execution? We will discuss this in following steps: Step 1: First step of instruction execution is to fetch instruction which
Factory methods that will be used to make objects just like in a static way.
Q. Factors of Information system which affect the business? There are several factors which affect the business such as - a) Threats of fresh entrants. b) Rivalry surro
Design an OR to AND gates combinational network and NAND only n/w for the following Boolean expression: A'BC'D + ABC'D' + A'B'CD' + A'BCD'
Q. Can a vector have a component equivalent to zero and still have a nonzero magnitude? Answer:- Yes For example the 2-dimensional vector (1, 0) has length sqrt (1+0) = 1
What are the use of job queues, ready queues and device queues? As a process enters a system they are put in to a job queue. These queues having of all jobs in the system. The
1. The Goal: Do you think that this is an operational methodology or a philosophy? Please explain. 2. How to apply Constraint Management to a Production Facility? How about to a
State about Dynamic modelling and its inputs Dynamic modelling is elaborated further by adding concept of time: new attributes are computed, as a function of the attribute chan
Explain briefly Loop-invariant code motion of the commonly used code optimization techniques. Loop-invariant code motion If a quantity is calculated inside a loop duri
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