What is EPROM?

[yc-han]

I would like to know what is the difference between EPROM and just regular pc-133 memory?
My motherboard accepts unbuffered, 3.3v, 168 pin Sdram. Will EPROM memory be compatible to my motherboard?
Is eprom cheaper than regular memory?

[Donkey]

EProm is a Read Only Memory which is used to store stuff permanently on your comp , not unlike the bios chip. It is therefore not possible to use it as RAM and a replacement for you SDRAM. It also bloody expensive if i remember and actually not very stable (long term). Some equipment at work has just lost it memory cos the EPROM went and the equipment had to be sent back to the manufacturer to be fixed with a heavy bill.

[Y Cymro]

EPROM stands for Electrically Programable Read Only Memory. Your Bios chip is an example (of sorts, but of course that can be re-programed).

[Stan]

Hi

http://webopedia.internet.com/TERM/E/EPROM.html

Stan

[Bob-NB]

EPROM
(erasable programmable read-only memory)

EPROM (erasable programmable read-only memory) is programmable read-only memory (PROM) that can be erased and re-used. Erasure is caused by shining an intense ultraviolet light through a window that is designed into the memory chip. (Although ordinary room lighting does not contain enough ultraviolet light to cause erasure, bright sunlight can cause erasure. For this reason, the window is usually covered with a label when not installed in the computer.)

A different approach to a modifiable ROM is electrically erasable programmable read-only memory (EEPROM).

Source Whatis.com (http://www.whatis.com/)



[This message has been edited by Bob-NB (edited 12-15-1999).]

[800XL]

When we are talking SDRAM, there is a type with an EPROM on the memory module which contains info about that memory module. (Speed, rows, collumns, CAS latency, etc) To my knowledge, most SDRAM these days comes with a 'speed EPROM' on it. I'm no expert, but it has never been a problem or concern to me and I've had SDRAM with and without the EPROM. I'll see if I can dig up a little better info on why its there, and what it does, but I would not worry too much about it. I doubt it will cause a problem either way, but as with all things, make sure you can return it if it doesn't work.