microcontroller

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microcontroller
1. A single-chip computer designed specifically for use in device control, communication control, or process-control applications. It typically comprises a microprocessor, memory, and input/output ports. A typical microcontroller might have a relatively short word length, a rich set of bit-manipulation instructions, and lack certain arithmetic and string operations found on general-purpose microprocessors.

2. A microprocessor-based device or system designed for control applications.