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.
Explanation:
In your question you asked architure but maybe it is architecture (•;
When two or more computers are connected together so they can communicate with one another, they form a network. The largest computer network in the world in the Internet.
