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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.
What is delegation? Delegation gives a proper mechanism to achieve the desired code reuse. The method is caught in the desired class and forwarded to another class for actual i
SubProgram or Procedure Level This level consists of subroutines, procedures or subprograms. Average grain size is used at this level containing various thousands of instructio
HTML is a Hyper text Markup Language and it is Scripting Language
Q. Explain types of assembly programs? Assembly language programs can be written in two manners: COM Program: Having all segments as part of one segment EXE Program: that hav
Draw a circuit of TTL gates with Wired-AND connection and explain its operation. Wired - AND Connection In digital IC's NAND and NOR gates are most frequently used. For th
What are the some support activities in primary functions of Supply Chain Management? To support primary functions of Supply Chain Management there will be a company’s infrastr
State about An active graphics device An active graphics device allows the user to communicate with the computer graphically. Generally, this implies that the user is supplyin
Q. What is Presentation layer? Presentation layer: When two hosts are communicating with each other they might use different coding standards and character sets for represent
Q. Basic Architecture of computer system? Replacing the ALU and CU (i.e., CPU) of Figure by a microprocessor, and storing instructions and data in the same memory, one arrives
Define the types of software life cycle Any system progress refers to the initial part of the software life cycle: analysis, design, and implementation. During object oriented
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