Define input - output operations, Operating System

Q. Define Input - Output operations?

Serial lines, Disks, tapes and other devices should be communicated with at a very low level. The user require only specify the device and the operation to perform on it while the system converts that request into device- or controller-specific commands. User-level programs can't be trusted to access merely devices they should have access to and to access them only when they are otherwise unused.

Posted Date: 7/27/2013 2:22:12 AM | Location : United States







Related Discussions:- Define input - output operations, Assignment Help, Ask Question on Define input - output operations, Get Answer, Expert's Help, Define input - output operations Discussions

Write discussion on Define input - output operations
Your posts are moderated
Related Questions
Determine the task of the Pass II In a two-pass assembler Synthesize the target program is the task of the Pass II

Define thread cancellation & target thread. The thread cancellation is the task of terminating a thread before it has completed. A thread that is to be cancelled is often refer

Explain a boot control block A boot control block can have the information required by the system to boot an operating from that partition. If the disk does not have an operati

what is independent process? distinguished between independent process and co-operating process

What are the advantages of Indexed allocation? The benefits are a. No external-fragmentation problem b. Solves the size-declaration problems. c. Supports direct access

Q. What is the occupation of the object manager? Answer: Substance present a generic set of kernel mode interfaces to user mode programs. Objects are influenced by the execut

Explain the Novell NetWare     NetWare doesn't really have the concept of processes in the architecture, as  the most closely associated element in the NetWare  environment to

1. Suggest some mechanism(s) to lower the dispatch latency while scheduling for a real-time system. Also, discuss any trade-off or consequent constraint associated with it, if a

Explain fixed partitioning. Partitioning are the simpler techniques that don't involve virtual memory. Partitioning has been used in numerous variations in operating systems.

Explain the difference between internal and external fragmentation. Internal Fragmentation is the area in a region or a page that is not used by the job occupying that region o