What is the primary use of Integrated Drive Electronics (IDE)?

Integrated Drive Electronics (IDE) is primarily used as an interface standard for connecting storage devices such as hard drives and CD-ROM drives within a computer system. The correct option highlights that IDE allows for connecting two devices per channel for internal connections. This means that one IDE channel can manage communications with two devices, enabling both to share the data bus for tasks like reading or writing data. This setup was particularly popular in older computer architectures, as it allowed for efficient management of storage devices without requiring additional interface cards.

The other options refer to functionalities that IDE does not fulfill. For instance, connecting external devices to a computer typically involves standards like USB or FireWire, which are not related to IDE. Enhancing data transfer speeds over USB connections relates to entirely different technologies, and providing wireless communication involves protocols like Wi-Fi or Bluetooth, none of which are connected to the original purpose of IDE.