MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -To erase and reprogram the EPROM, UV light is required. The light clears the data on the chip and readies it for reprogramming by focusing on a quartz crystal window at the top of the EPROM. This window is transparent, and the silicon chip is visible through it, which permits exposure to UV light during erasure.

Detailed explanation-2: -Once programmed, an EPROM can be erased by exposing it to strong ultraviolet light source (such as from a mercury-vapor lamp).

Detailed explanation-3: -EEPROM (electrically erasable programmable read-only memory) is a user-modifiable ROM. It can be erased and reprogrammed (written to) repeatedly by applying an electrical voltage that is higher than normal.

Detailed explanation-4: -The Erasable Programmable Read-Only Memory (EPROM) is a data circuit that retains its memory even when power is off. Security system manufacturers use EPROMs to hold both the operating system and the program for the access control panel.

Detailed explanation-5: -A user can erase the data present in EPROM by exposing it to UV (ultraviolet) light.