USB, short for Universal Serial Bus, is a common type of computer port that makes it easy to charge a device or transfer data between two devices. Since it was first developed in the 90s ...

USB-to-serial adapters are available for old peripherals. 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 ...

(1) An external storage or optical disc drive that plugs into the USB port. See portable hard drive. (2) A small solid state storage module that plugs into the computer's USB port. Emerging just ...