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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 a semaphore? Semaphore: It is a protected variable or abstract data type that constitutes the typical method for restricting access to shared resources as shared memo
Describe what happens when recursion functions are declared inline? Ans) Inline functions property says whenever it will call; it will copy the whole definition of that functi
Interrupts are signals which cause the CPU to suspend the currently executing program and transfer to a special program known as an interrupt handler. Interrupt handler determines
Explain the Fundamentals of C Programming? The C is a general purpose structured programming language. The C was developed and first implemented by the Dennis Ritchie at Bell L
Q. Evaluate Bandwidth of disk drive? Bandwidth: Bandwidth can be measured in bytes per second. Sustained bandwidth is the average data rate at the time of a large transfer w
Define bidirectional bus? A bidirectional bus is that which permits the transfer of data either from memory to CPU during a read operation or from CPU to memory during write op
How to calculate the flowchart
How a Java program compiles? First source file name should be extended with .java extension. For example Myprog.java Execute javac compiler. javac compiler creates
A control character is sent at the beginning as well as at the end of every block in the synchronous-transmission in order to (A) Synchronize the clock of transmitter and rece
What is Instruction Cycle A program residing in the memory unit of the computer having of a sequence of instructions. The program is implemented in the computer by going throu
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