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Define Random scan/Raster scan displays?
Random scan is a method in which the display is made by the electronic beam which is directed only to the points or part of the screen where the picture is to be drawn. The Raster scan system is a scanning method in which the electrons sweep from top to bottom and from left to right. The intensity is turned on or off to light and unlight the pixel.
#questi on.. How it works explain
Task A task is logically discrete section of computational work. A task is normally a program or else set of instructions which are executed by a processor. Parallel
After going through details of device interfaces next point to be discussed is how the interface can be used to support I/O from devices. Binary information received from an extern
Execution: Now instruction is ready for execution. A different opcode will need different sequence of steps for execution. Hence let's discuss a few illustrations of execution of s
Electronic typewriter : An electronic typewriter has a 'memory' or 'electronic brain' which enables it to recall the whole document at a time and type it automatically at the pres
Explain the Register transfer language Register transfer language means there must be data flow between two registers and logic is in between them for end registers data must f
Discuss two main approaches to reuse free memory area in a heap. Two major approaches to reuse free memory area in a heap are: First-fit: Allocate the first hole which i
If a table that is to be extended contains a long field, we cannot use append structures why? Long fields in a table must always be located in the last, as the last field of th
What is a deadlock? A deadlock is a situation that can increase when two units, A and B use a shared resource. Assume that unit B cannot complete its task unless unit A complet
In the message-passing model, there exists a set of tasks that use their own local memories during computation. Multiple tasks can reside on the similar physical machine as well ac
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