Hard disk and Winchester drive

Hard disk noun - A rigid magnetic disk mounted permanently in a drive unit.

Winchester drive and hard disk are semantically related in permanent computer memory topic. In some cases you can use "Winchester drive" instead a noun phrase "Hard disk".

Winchester drive noun - Computer hardware that holds and spins a magnetic or optical disk and reads and writes information on it.

Hard disk and Winchester drive are semantically related in storage and retrieval device topic. You can use "Hard disk" instead a noun phrase "Winchester drive".