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Briefly discuss on I/O hardware?
A controller is a collection of electronics that can operate a port, a bus, or a device. A serial-port controller is an easy controller. It is a single chip in the computer that controls the signals the signal on the wires of a serial port. The device control registers are mapped into the address space of the processor. The CPU implements I/O requests using the standard data transfer instructions to read and write the device-control registers. An I/O port having of
a. Status register
b. Control register
c. Data-in register
d. Data-out register
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Differentiate pre-emptive and non-preemptive scheduling In a pre-emptive scheduling technique, CPU can be taken away from a process if there is a requirement while in a non-pre
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Define Coding in an independent service architecture Coding in an independent service architecture alleviates many of the traditional dependencies of monolithic applications.
is the operating system windows sometimes interupts
Allocators can also be used to avoid problems with unsafe languages. C and C++ are pervasive, with huge amounts of existing code. They are also memory-unsafe languages, in that the
Applications allocate memory in terms of the number of bytes that they need, but this level of granularity is too ?ne-grained for the operating system to manage the system memory i
whats the problem in two state model ?
What is segmentation? In a segmented memory management scheme a programmer views a program to be collection of program components called as segments. Every segment is a logical
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