Definition

Noun: A data storage device that operates independently from a computer's main internal system. It has its own power source and cooling fan, is housed in a separate physical enclosure, and connects to a computer via a cable.

Usage

An external drive is used to expand storage capacity, back up data, or transfer files between computers. It is a portable, self-contained unit.

Examples

• Noun:
  • I bought an external drive to back up all my family photos.
  • Please save the project files to the external drive before you leave.
  • The software installation requires more space than my laptop has, so I'll run it from an external drive.

Advanced Usage

• "Network-attached storage (NAS)" vs. "external drive": While both provide external storage, a NAS is a specialized device connected to a network for multiple users, whereas a standard external drive typically connects directly to a single computer.
• "Bootable external drive": An external drive configured to start up (boot) a computer's operating system, often used for system repairs or running a portable OS.

Variants and Related Words

• Portable hard drive: A type of external drive, usually smaller and powered through the connecting cable (e.g., USB), without a separate power adapter.
• Solid-state drive (SSD) / Hard disk drive (HDD): These describe the internal technology (flash memory vs. spinning platters) and can be found in both internal and external drive formats.

Synonyms

• Peripheral storage device
• Auxiliary storage unit

Related Phrases

• To plug in an external drive: To connect it to a computer.
  • Plug in the external drive before you try to transfer the files.
• To eject an external drive: To safely disconnect it using software to prevent data loss.
  • Always remember to eject the external drive before unplugging the cable.

Noun

1. a drive with its own power supply and fan mounted outside the computer system enclosure and connected to the computer by a cable