Final answer:
MIDI IN, MIDI OUT, and MIDI THRU are three types of MIDI connectors used to send and receive MIDI data signals. They play a vital role in connecting different MIDI devices together.
Step-by-step explanation:
MIDI stands for Musical Instrument Digital Interface and it is a protocol that allows electronic musical instruments, computers, and other devices to communicate with each other. MIDI IN, MIDI OUT, and MIDI THRU are three types of MIDI connectors that are used to connect MIDI devices together.
1. MIDI IN: This is where the MIDI data signals are received by a device. For example, if you connect a MIDI keyboard to a computer, you would use the MIDI IN port on the computer to receive the data from the keyboard.
2. MIDI OUT: This is where the MIDI data signals are sent from a device. For example, if you connect a MIDI keyboard to a sound module, you would use the MIDI OUT port on the keyboard to send the data to the sound module.
3. MIDI THRU: This is a special type of connector that allows MIDI data to be passed through a device without interrupting or modifying it. For example, if you connect multiple MIDI devices together in a chain, you can use the MIDI THRU port on each device to pass the data along to the next device.