On-line and realtime systems, Basic Computer Science

On-line and Realtime Systems

An on-line system means that input and output devices are directly connected to the CPU irrespective of geographical location. Thus the user can directly interact with the computer system through the terminal interface.

A realtime system is defined as one where response (feedback) from the system is fast enough to affect the on-going process. The responses time varies from situation to situation. For example, in launching a satellite the allowed feedback time may be in microseconds, for airline reservation system, the acceptable response time may be 20 seconds, while for a Production Planning and Control System the response time of a few minutes may be acceptable. All the above illustrations are of realtime systems, even though response time varies.

A realtime system is necessarily on-line but an on-line system may not be realtime. 

Posted Date: 9/14/2012 5:46:09 AM | Location : United States

Related Discussions:- On-line and realtime systems, Assignment Help, Ask Question on On-line and realtime systems, Get Answer, Expert's Help, On-line and realtime systems Discussions

Write discussion on On-line and realtime systems
Your posts are moderated
Related Questions
to do a assignment regarding IPC in linux

In this assignment, you should create a class called ToDoMenu which has a main method that contains the code that implements a command-line menu for managing a collection of ToDoIt

UNIX Shell and History feature. 1.Creating a child process. 2.Creating a history feature. Its exactly "programming project 1 - Unix Shell and History Feature (p.157-159)" in the Si

I have an account in my www.itlab.com and i have a test and it should do tonight, so do you have any one to help me and do this test and it is about excel

Question 1 Write short notes on                           (a) Office Automatics System                           (b) Transaction Processing System Question 2 What is a too

IP provide connectionless service to upper layer IP protocol is very simple could not guarantee the reliability of transportations IP protocol is Point to Point IP provide the unif

QUESTION (a) Convert each of the following expressions to prefix and postfix. (i) (A+B)*(C+D) (ii) A-B/(C*D^E) (^ denotes exponentiation) (b) The following algorithm c

Question 1 Explain Wireless Protocol Requirements and also explain in brief medium access control protocol Question 2 Explain FDMA and TDMA concepts Question 3 Exp