DB (D-Sub) Connectors and COM Ports A serial port on a PC is a male 9-pin connector (DE-9 D-sub). Early PCs had two 9-pin connectors or one 9-pin and one 25-pin (DB-25). On a PC, serial ports are ...

Also called a "wrap plug," it plugs into an Ethernet or serial port and crosses over the transmit line to the receive line so that outgoing signals can be redirected back into the computer for ...

USB stands for Universal Serial Bus and ever since its formation ... Many of us were introduced to this wonder plug in 2015 when Apple launched the 12-inch Retina MacBook. Apple’s decision ...