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All components of computer communicate with processor by the system bus. Which means I/O devices required to be attached to system bus. But I/O devices aren't connected directly to computer's system bus. In its place they are attached to an intermediate electronic device interface known as a device controller that in turn is attached to system bus. Therefore a device controller is an interface between a system bus and an I/O device. On one side it knows how to communicate with I/O device associated to it and on the other it knows how to communicate with computer's CPU or processor and memory via the system bus.
Q. Define Point-to-point Communication? The simplest form of message is a point to point communication. A message is sent from the transmitting processor to a receiving process
Name and explain the popular techniques to identify free memory areas as a result of allocation and de-allocations in a heap. Two well-liked techniques to identify free memory
Output comparators are used in Theses are used in Dynamic testing of single and multiple module.
Name the various Display devices Different types of display devices are discussed along with the principles on which these work. The main display devices used with CAD systems
What are Sequential Algorithms? The central assumption of the RAM model is that instructions are implemented one after another, one operation at a time. Accordingly, algorith
Q. Define a Formal System? A Formal System is one which is planned in advance and is used according to schedule. In this system procedures and policies are documented well in a
Q. Explain Active Matrix or Thin Film Transistor technology? This is known as TFT (Thin Film Transistor) technology. In this there is a transistor at every pixel acting as a r
The XOR gate. The exclusive OR or XOR gate is similar to a two input OR gate. The output of an XOR gate is logic 1 only when one input or the other input is high and is 0 when
Expalin the History Of Parallel Computers The researches with and implementations of use of the parallelism started long back in the 1950's by IBM Corporation. The IBM STRETCH
Hard Disk Technology: Figure of a computer hard disk drive HDDs record data by magnetizing ferromagnetic material directionally, to represent
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