November 1998
Intermediate to advanced
1520 pages
37h 53m
English
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Chapter 20. Multitasking and Multithreading
Multitasking is the ability of an operating system to run multiple programs concurrently. Basically, the operating system uses a hardware clock to allocate “time slices” for each currently running process. If the time slices are small enough—and the machine is not overloaded with too many programs trying to do something—it appears to a user as if all the programs are running simultaneously.
Multitasking is nothing new. On large mainframe computers, multitasking is a given. These mainframes often have hundreds of terminals attached to them, and each terminal user should get the impression that he or she has exclusive access to the whole machine. In addition, mainframe operating systems often allow users ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.