EPROM translates to Erasable Programmable Read-Only Memory. To shed light about what this means-
Read-Only Memory (ROM):
1. This type of memory retains its data even when the power is turned off (non-volatile).
2. Traditionally, ROM was "read-only," meaning its contents couldn't be changed.
Programmable:
These EPROMs can be programmed, that is data can be written on them.