Type of Processing 

There are mainly three types of processing 

1. Serial Processing

Execute one instruction at a time; Fetch, decode and execute.

2. Parallel Processing

Multiple processes are done at the same time. for example Network Servers, Super Computers.

3. Pipelining Processing

A technique where the processor begins executing a second instructions before the first has been completed. Thus several instructions can be executed simultaneously, each at a different processing stage. Pipelining does not reduce the time to complete an instruction, but increases the number of instructions that can be processed at once.