terminal; connection point
General electrical/electronic terminal: a point where a wire or conductor is connected, such as screw terminals, connector terminals, or battery terminals.
The battery terminals are corroded.
Refers to the metal pins or leads on a semiconductor package, microcontroller, or IC. Often used in datasheets and hardware descriptions.
Used for communication ports such as LAN, USB, or serial ports, where a cable or device is plugged in. Common in computing and networking contexts.
I inserted the USB memory stick into the port on the computer.
This IC has eight pins in total.
Please plug the cable into the LAN port.
I connected the speaker cable to the terminal.
The wiring terminal came loose and the connection got poor.
This IC has a lot of pins, making it hard to work with.
端子 refers to the individual conductive contact point, whereas コネクタ refers to the physical plug or housing that holds one or more 端子.
counter for small objects; counter for pieces · counter for military units · individual; one person · counter for years of age difference; counter for school years
端 (end, edge) + 子 (small thing, child). The combination denotes a small end point or connection point, used in technical contexts for electrical terminals.