Unit 7 Research Paper 1: Cmos

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Unit 7 Research Paper 1: CMOS
How has CMOS memory changed over the years?
CMOS really hasn’t changed very much from what I could find on the internet… Mainly the speeds have increased and the noise has been reduced it also went from analog to digital. Originally, the IBM PC only used of a small portion of CMOS memory and the balance of the 64 bytes were left undefined.   Once other manufacturers cloned the AT form factor it wasn’t long that other areas of the CMOS was used by various BIOS manufacturers for such user-selectable options as memory wait states, memory type, initial boot drive selection, boot-up clock speed, hard drive interface type, green options, shadow RAM options, cache options, and password protection of the CMOS contents.   It still uses a small battery incase there is a power outage and still uses volatile RAM.                                                                                                                                                                                                       Has the size of the CMOS memory increased, decreased, or stayed the same?  
The size of the CMOS memory has also pretty much stayed the same because there is no need to increase the size. There was never any need to store more than 512 bytes in the memory as it holds the absolute basic boot settings for the system. The typical size is still 512 bytes currently. All it comes down to is “If it ain’t broke don’t fix it.”, so it’s been that way since almost the very beginning. It does its job which is to just get the computer started and make sure everything is in place and then hands it all over to the computers OS.

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