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Os Comparison

In: Computers and Technology

Submitted By ynot0816
Words 2964
Pages 12
Comparison of Windows, Mac OS X and Linux Operating Systems
Team A
POS/355
March 6, 2015

Memory Management System
Memory management is the process of allocating memory during your programs runtime.
Memory Management in MAC OS is a multi-core and multi-processor execution that is supported and a programming API, which is called grand central dispatch. It is in the MAC OS. It provides a pool of available threads.
There are ways to prevent memory related problems; Freeing data that is still in use, this can cause memory corruption that can result in your application crashing or worse corrupted user data. The MAC operating system can provide most concurrency as possible based on the number of cores available, and those threads depend on the capacity of the system.
Windows memory management system is both physical and has virtual memory. It is mainly controlled by the virtual memory managers and pages. “Windows operating system operates on many platforms then it uses page sizes that can range between 4KB to 64KB. So this means that windows virtual memory can control how memory can allocate paging performance” (Stallings, 2013).
Committed, Available, and Reserved are three types of regions of space or memory that the operating system can manage. Committed region is space it’s pages that have been stored either in physical or virtual memory. It also allows the process to access the virtual memory pages. Available region is where the address of the process is not being used. Reserved region is space that is not available for any other use and waits for a processing.
UNIX is different form Linux when it comes to managing its memory. The process that UNIX uses is swapping, it done by moving chucks of the virtual memory. In order for this to work pages is the main memory and moves others in. the pages are needed to be accessible in the main memory from the demand...

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