Is Arduino Uno a microcontroller or microprocessor?
Matthew Perez
Updated on May 18, 2026
Arduino Uno is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital
input/output
In computer programming, standard streams are interconnected input and output communication channels between a computer program and its environment when it begins execution. The three input/output (I/O) connections are called standard input (stdin), standard output (stdout) and standard error (stderr).
https://en.wikipedia.org
› wiki › Standard_streamsICSP
In-system programming (ISP), or also called in-circuit serial programming (ICSP), is the ability of some programmable logic devices, microcontrollers, and other embedded devices to be programmed while installed in a complete system, rather than requiring the chip to be programmed prior to installing it into the system.
https://en.wikipedia.org
› wiki › In-system_programming