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What is program controlled I/O?
In program controlled I/O the processor repeatedly checks a status flag to achieve the needed synchronization among the processor and an input and output device.
Differentiate between pre-emptive and non-pre-emptive scheduling. Pre-emptive scheduling : in its approach, center processing unit can be taken away from a process if there is a
What are the functions of virtual file system (VFS)? a. It splits file-system-generic operations from their implementation explaining a clean VFS interface. It allows transpare
Explain about the viruses in detail Note 1: Viruses don't just infect computers, they may also affect mobile phones, MP3 players etc. - any device that can download files fro
Hyper-threading works by duplicating those parts of processor which store architectural state but not duplicating main execution resources. This permits a Hyper-threading equipped
Speedup First, we take the speedup factor which is we see how much speed up performance we achieve by pipelining. First we take ideal case for measuring the speedup. Let n b
Define bus A group of lines that serves as a connecting path for various devices is known as a bus.
A special Slot Machine is introduced in a new casino; this machine has a digital interface of a 3X3 grid. An interface button named as SPIN for making the machine spin. There are f
what is time out based schemes in concurrency control
What is the chief advantage of using virtual packets instead of frames? The router can't transfer a copy of a frame from one kind of network to another since the frame formats
What are the stages of data mining? The procedure of data mining comprises three stages, which are given below: a) The initial exploration b) Model building c) Deploym
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