A SOC may be embedded with the following components:

1. Embedded processor that may be General Purpose Processor (GPP) or Application Specific Instruction set Processor (ASIP)
2. Single purpose processing core or multiple processor cores
3. A network bus protocol implementing core
4. An encryption unit
5. Signal processing unit
6. Field Programmable Gate Array (FPGA) to implement some logical circuit
7. Memory
8. Analog units

One of the widely used place for SOC is mobile phones. Single purpose processors are configured for dialing, modulating, demodulating, deciphering, interfacing keypad and multi line LCD or graphic LCD, touch screen, storing data.