Final answer:
A port is a socket that enables external devices to connect to a computer system unit. It comes in various types like USB, HDMI, Ethernet, and VGA, each serving specific connectivity purposes.
Step-by-step explanation:
A port is a socket for external devices to connect to the system unit. It allows external devices, such as keyboards, mice, printers, and external hard drives, to connect to a computer, enabling communication between the system and the device. Common port types include USB (Universal Serial Bus), HDMI (High-Definition Multimedia Interface), Ethernet, and VGA (Video Graphics Array) ports, among others. Each type of port has a distinct shape and serves a different purpose, for example:
- USB ports are highly versatile and used for a wide range of devices.
- HDMI ports transmit high-definition audio and video signals.
- Ethernet ports provide wired internet connections.
- VGA ports are traditionally used to connect monitors and projectors for video output.
Identification of the specific port type is often necessary to ensure compatibility between the system unit and the peripheral device being connected.