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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. What is Input-output processors? let's briefly summarize the development in area of input/output functions. These can be briefed as below: 1. CPU directly controls a peri
Q. Illustrate Shift Micro-operations? Shift is a valuable operation that can be used for serial transfer of data. These operations can also be used along with other (arithmetic
Define interrupt. An interrupt is any exceptional event that causes a CPUU to temporarily transfer control from its present program to another program , an interrupt handler th
Circuits can be designed to implement a specifictaske.g. a simple circuit could compare two inputvoltages and give a high output if they matched anda low output if they did not mat
How is a property designated as read-only? In VB.NET: Public Read-Only Property Property Name As Return Type Get? Your Property execution goes in here End Get End Property.
Use of instruction register and program counter: Q. What is the use of instruction register (IR) and program counter (PC)? Ans: The instruction register (IR) holds the inst
Reprographic Methods i) Thermography ii) Dyeline jii) Microfiche iv) Fax In this unit you have learnt that: Used for Methods of reprography are used for the
What are the process states in Unix? As a process implements it changes state according to its circumstances. Unix processes have the following states: Running : The process
What is the benefit of Report Wizard over an Auto Report? It takes a little more work to make a report with the report wizard than with the Auto Report but you have a lot more
The Gantt chart shows the several activities of each processor with respect to progress in time in idle-overhead -busy modes with respect to each processor. Kiviat diagram: Th
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