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The I/O interface provides a technique for transferring information between external I/O devices and internal storage. Peripherals linked to a computer require special communication links for interfacing them with CPU. Objective of communication link is to resolve differences which exist between central computer and every peripheral. The key differences are:
To resolve these differences, computer systems include special hardware component between the CPU and peripherals to supervise and synchronize all input and output transfers. These components are called interface units because they interface between the processor bus and the peripheral device.
One might argue that in general processes are more ?exible than threads. For one thing, they can live in two different machines, and communicate via sockets; they are easy to spawn
Used to interrupt CPU normal implementation routine and to get its attention .Mostly generated by an external devices, timers, counters...etc
Q. Explain Physical Characteristics of magnetic disk? Figure below lists main features that differentiate among different types of magnetic disks. First head may either be fixe
sovling questions on transition table for sequential circuits
What are the various address Translation schemes? Explain which scheme is used in Internet? Translation from a computer's protocol address to a corresponding hardware address i
Determine the term Queries-DBMS Queries most commonly allow information to be retrieved from tables. As the information is often spread across numerous tables, queries allow it
What is an "on input filed" statements? ON INPUT The ABAP/4 module is known as only if a field having the Value other than the initial Value. This initial Value is explain
What is XML DTD (Document Type Definition)? DTD is a document which defines legal building blocks of a particular XML document. This defines the document structure along with
(a) Consider a sinusoidal signal m(t) = A cos(2πfmt) applied to a delta modulator with step size Δ. Determine the range of the step size so that slope overload will be avoided. Ass
Multiprogramming or multitasking? Ans: The OS manages the concurrent execution of many application programs to make best possible use of computer resources. This pattern of si
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