June 2012
Intermediate to advanced
528 pages
15h 40m
English
Content preview from Computers as Components, 3rd Edition
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6.9 Example Real-Time Operating Systems
In this section we look at two example real-time operating systems. First, we look at the POSIX standard for Unix-style operating systems such as Linux. We then introduce Windows CE.
6.9.1 POSIX
POSIX is a version of the Unix operating system created by a standards organization. POSIX-compliant operating systems are source-code compatible—an application can be compiled and run without modification on a new POSIX platform assuming that the application uses only POSIX-standard functions. While Unix was not originally designed as a real-time operating system, POSIX has been extended to support real-time requirements. Many RTOSs are POSIX-compliant and it serves as a good model for basic RTOS techniques. The ...
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