Four Old Non-Working 1990s PCs (Dartford DA1)

These are all old PCs from the 1990s and 3 of the 4 don't work.
One works sometimes.
They don't have their IDE hard drives.

Might be of use to someone who is learning about PCs or enjoys tinkering around with them.

All four are to go in one lot - I won't be separating.