If you are just starting go on khan academy and go to the computing section and they will start you out on the basics on code devoloping.
Answer:
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 (•;
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