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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 are the different parameter passing mechanisms to a function? The different parameter-passing mechanisms are given below: 1. Call by value 2. Call by value-resu
Q. Show the layout of Dvorak-Dealey keyboard? This was one keyboard layout designed to be a challenger to QWERTY layout. This was designed by August Dvorak and William Dealey a
Comparison between Motorola processors and INTEL processors: Intel/AMD processors are really about the same thing. They run the same software and operate in a very similar ma
Q. Illustration of cache size of a system? Cache Size: Cache memory is very costly as compared to main memory and therefore its size is generally kept very small. It has bee
What is Read only memory (ROM) and Define the Use of it? A simple kind of ROM can be constructed from a decoder, Or gates, and a number of wires. Input
Error-correcting code memory (ECC memory) is a type of computer data storage that can notice and correct the more general kinds of internal data corruption. ECC memory is used in m
A red and blue car were involved in a head-on collision. The red car was at a standstill and the blue car was possibly speeding. Eye witness video recorded suddenly following the
Q. Illustrate about Direct Addressing mode? In this technique operand field of instruction specifies direct address of intended operand for example if instruction LOAD 500 uses
What are the four significant factors that led to the development of open source software? 1. To diminish the high control value of the Proprietary Software 2. To avoid disc
Explain the term - Instruction execution We know that the fundamental function performed by a computer is the execution of program. The program that is to be exec
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