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Write on short note DMA.
Direct Memory Access (DMA) is a technique for transferring data from main to a device without passing it through the CPU. Computers that have DMA channels are able to transfer data to and from devices much more quickly than computers without a DMA channel can. This is helpful for making quick backups and for real-time applications.
A few expansion boards such as CD-ROM cards are capable of accessing the computer's DMA channel. When you install the board, you should specify which DMA channel is to be used, which sometimes engross setting a jumper or DIP switch.
Explain the Types of System Calls The major types of system calls are like this: a. Process Control: These types of system calls are employed to control the processes.
Q. Under what conditions do page faults occur? Explain the actions taken by the operating system when a page fault occurs. Answer: A page fault take places when an access to
Determine a processing that is not a part of Synthesis phase Perform LC processing is not a part of Synthesis phase
Objective - Tiny Shell (tish) In this exercise you will write a small shell program to run different programs in foreground and background mode. Background Usually when
What is the essence of facility location in production operation management
NEXT FIT ALGORITHM Here scanning starts from the first fit position and then it finds the next position which is large sufficient to hold the process. Thus the name next fit.
What are the typical elements of a process image? User data: Modifiable part of user space. May have program data, user stack area, and programs that might be modified. User
What is the use of inter process communication. Inter process communication gives a mechanism to allow the co-operating process to communicate with each other and synchronies t
Explain the Advantages and Drawback of Multiple Processes Application architected to take advantage of multiple processes will certainly see performance gains. Functions and Fe
SCAN o Go from the outside to the inside servicing requests and after that back from the outside to the inside servicing requests. o Replicate this over and over. o Diminish
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