Memory swapping is a memory reclamation method wherein memory contents not currently in use are swapped to a disk to make the memory available for other applications or processes. The exact state or "page" of memory is copied to the disk to make the data contiguous and easy to restore later.
VxWorks is a proprietary and customizable real-time operating system (RTOS). VxWorks is designed for distributed computing on most central processing units (CPU) with embedded systems.VxWorks is used with a spectrum of hardware, including communications and network devices, testing and measuring devices, computer peripherals, automotive systems and consumer products.
VxWorks is compatible with a variety of CPUs, including: Microprocessor without Interlocked Pipeline Stages (MIPS), PowerPC, Intel i960, Scalable Processor Architecture (SPARC), SH-4, the x86 family, Advanced Risc Machine (ARM), StrongARM and xScale. VxWorks features include:
VxWorks is also applied in the spacecraft industry. Examples include:
Because code is written as required, VxWorks may be challenging for novice programmers. However, VxWorks uses less processing power than UNIX and runs at faster speeds because content is saved on a minimal basis. Released in 1985, VxWorks was created and sold by Wind River Systems of Alameda, CA (USA).
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