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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. Analysis of Amdahls law? The conclusions of analysis of Amdahl's law are: 1) To optimize performance of parallel computers modified compilers should be developed that sho
Mention the various IC logic families. Ans. Different IC Logic Families: Digital IC's are fabricated through employing either the Unipolar or the Bipolar Technologies and are te
You have two counters counting up to 16, built through negedge DFF, First circuit is synchronous and second is "ripple" as cascading, which circuit has a less propagation delay? Wh
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What is port? What are the types of port available? An I/O interface having of circuitry needed to connect an I/O device to computer bus. One side consists of a data path with
Computer Organization and Architecture 1. Draw the block diagram of von Neumann Architecture and describe about its parts in brief. 2. Draw block diagram of Intel 8085 CPU o
How many select lines will a 32:1 multiplexer will have ? Ans. 5 select lines will be required for 32 inputs, as 2 5 = 32.
Compare pre-emptive and non-preemptive scheduling policies. We preempt the currently executing process in preemptive scheduling. In non-preemptive we permit the current process
Futoshiki is a game played on an N by N (usually 5 by 5) grid and uses the symbols 1 .. N. The objective of the game is to place each symbol on the grid so that it only occurs once
Build U Like are a building company specialising in hard landscaping. They lay patios, build walls, lay drives etc. for their customers. A customer will remain in the system even t
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