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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 do you mean by system calls? System calls give the interface among a process and the operating system. When a system call is executed, it is treated as by the hardware as
Explain the product lifecycle in an Operating System
Nonvolatile BIOS memory refers to a small memory on PC motherboards that is used to kept BIOS settings. It was traditionally known as CMOS RAM because it used a volatile, low-power
Could TCP allow IP to checksum the data? TCP cannot permit IP to checksum data yet IP has its own checksum for its header. IP layer is fundamentally responsible for routing of
A museum has a collection of old posters advertising events of various kinds (theatre, sport, fairs, lectures etc.). It wishes to keep a record of these, containing, for each poste
An 8086 interrupt can take placedue to the following reasons: 1. Hardware interrupts caused by some external hardware device. 2. Software interrupts that can be invoked wit
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
given a string S convert it to palindrome by doing character replacement.convert S to palindrome with minimum character replacements
Computer Organization and Architecture 1. Draw the block diagram of von Neumann Architecture and describe about its parts in brief. 2. Draw block diagram of Intel 8085 CPU o
One can use the event GET in a report without LDB attribute. False. no one can use the event GET in a report without attribute.
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