A

**functional flow block diagram**(FFBD) is a multi-tier, time-sequenced, step-by-step**flow diagram**of a system's**functional flow**. The FFBD notation was developed in the 1950s, and is widely used in classical systems engineering.Also asked, what is the use of block diagram?

A block diagram is a diagram of a system in which the principal parts or functions are represented by blocks connected by lines that show the relationships of the blocks. They are heavily used in engineering in hardware design, electronic design,

**software**design, and**process**flow diagrams.What is block diagram of computer?

**Block Diagram of Computer**and its Explanation

**Block Diagram of Computer**. A

**computer**can process data, pictures, sound and graphics. They can solve highly complicated problems quickly and accurately. *InputUnit:

**Computers**need to receive data and instruction in order to solve any problem.

What is a sequential function chart?

**Sequential function chart**(SFC) is a graphical programming language used for programmable logic controllers (PLCs). The SFC standard is defined as, Preparation of

**function charts**for control systems, and was based on GRAFCET (itself based on binary Petri nets).