题目内容

Like a standard computer, the microcontroller includes a (), RAM, ROM, I/O ports, and timers.

A. monitor
B. keyboard
C. notebook
D. processor

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Typical output devices of a microcontroller include (), LEDs, and LCD displays.

A. relays
B. sensors
C. keyboard
D. radiofrequency devices

The second function of the MCU ports is used to implement ().

A. output data
B. read the state of a sensor
C. pulses
D. external interrupting

In a microcontroller, () is used to store the program because this kind memory can retain the stored information even when not powered.

A. RAM
B. ROM
C. Flash
D. Register

() are not the special features of the microcontroller.

A. Parallel Ports
B. Serial Ports
C. Timers
D. Counters