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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.
Convert the decimal number 45678 to its hexadecimal equivalent number. Ans: (45678) 10 =(B26E) 16 (45678) 10 =(B26E) 16
Examples of declarations of external variables that are not definitions: extern char stack[10]; extern int stkptr; These declarations tell the compiler that the variab
For the 8-bit bidirectional register in Figure 3, verify the status of the register after every clock pulse for the LEFT RIGHT /control waveform given. A HIGH on this input permits
Explain about the Prepurchase Interaction activity. Prepurchase Interaction: This interaction for consumers comprises three activities: • Product or service search and di
Serial Execution Execution of a program consecutively, one statement at a time. In the easiest sense, this is what occurs on a one processor machine. However, even many of the
Explain the role of a bus arbiter in a multiprocessor configuration. Bus arbiter: Which functions to resolve priority between bus masters and allows only one device at a time t
Explain Anonymous FTP. Use of a login password and name helps maintain file secure from unauthorized access. Though, sometimes these authorizations can also be inconvenient.
Distinguish between PAL and PLA
What is vector processing? There is a class of computational problems that are beyond the capabilities of a conventional computer. These problems are characterized by t
Question : Context aware mobile web applications are the important to achieve ubiquity, device independence and personalization. The context provides detailed information about
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