Fiber optic cables connect to computers to transmit data using light signals. Here's a simplified explanation:

1. Transmitter: Data from the computer is converted into light signals by a device called a transmitter.

2. Fiber Optic Cable: The light signals then travel through a thin glass or plastic fiber optic cable. These cables are designed to carry light over long distances with minimal signal loss.

3. Receiver: At the other end, a receiver detects the light signals and converts them back into data that the computer can understand.

In more technical terms, the process involves the use of light-emitting diodes (LEDs) or lasers to generate light signals at one end and photodiodes to detect these signals at the other end. The core of the fiber optic cable guides the light signals, and the cladding ensures that the light stays within the core by reflecting it.

Fiber optic connections offer high-speed data transmission, low signal loss, and resistance to electromagnetic interference, making them suitable for various applications, including internet connectivity.