System On Chip (SOC):
An SOC in general consists of heterogeneous mixture of hardware and Software components where fixed small size program are being repeatedly executedby the processor , which is implemented from the IP core, provided by various Vendor. The high level integration from IP core, provided by various vendors.
The high level integration of millions of gates provided by advancement in Microelectronics has made ASCIs, FPGAs, and dedicated chips and generalized processors available in plenty. This advancement in the technology has led further to integrate microprocessor/micro controller / DSP, ASICs, FPGAs and memory components all on a single integrated circuit to constitute a system – on- chip. Some of the areas where we use SOCs are FAX, modems, laser printers and cellular phones.
Commercial – off- the shelf (COTS):
The availability of the low cost constituent components makes the COTs based approach cost effective and convenient. Due to its support for flexible reuse of hardware and software components it is suitable for quick modification of overall design to meet the desired specification. COTS based embedded systems can be implemented every often with simple incremented modification, which is an additional advantage over the customer implementation.
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