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Understanding a Computer System
Input, Processing & Output

Vending Machine Example is a System

The user provides the INPUT, the machine performs the PROCESSING, and delivers the OUTPUT.

INPUT

Select product + insert coin

PROCESSING

Verify coin, check stock, release product

OUTPUT

Product delivered to user










Try the Vending Machine!

Enter your coin and select a product to see the IPO cycle in action.

Awaiting your selection and coin input...