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multitasking Last modified: Friday, September 19, 2003
The ability to execute more than one task at the same time, a task being a program. The terms multitasking and multiprocessing are often used interchangeably, although multiprocessing implies that more than one CPU is involved. In multitasking, only one CPU is involved, but it switches from one program to another so quickly that it gives the appearance of executing all of the programs at the same time. There are two basic types of multitasking: preemptive and cooperative. In preemptive multitasking, the operating system parcels out CPU time slices to each program. In cooperative multitasking, each program can control the CPU for as long as it needs it. If a program is not using the CPU, however, it can allow another program to use it temporarily. OS/2, Windows 95, Windows NT, the Amiga operating system and UNIX use preemptive multitasking, whereas Microsoft Windows 3.x and the MultiFinder (for Macintosh computers) use cooperative multitasking.		Related Categories Operating Systems Procedures, Functions and Routines Related Terms .NET background cooperative multitasking MultiFinder multiprocessing operating system OS/2 UNIX Shopping multitasking Products Compare Products,Prices and Stores Shop by Category: Baby Care 0 Store Offers Perfumes and Colognes 0 Store Offers Tools and Accessories 0 Store Offers
CMX-RTX real time operating system Product feature page for the CMS-RTX real time multitasking operating system for microprocessors and microcomputers. MOVIE site This site describes the MOVIE (Multitasking Object-oriented Visual Interactive Environment ) project from Syracuse University. The goal of the MOVIE project is to provide a programming environment on top of evolving open software and HPCC language standards. On Time home page The On Time site provides information on their real-time multitasking kernel for C and PASCAL, and the cross development system for 32-bit embedded systems.