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 aint broke dont fix it., so its 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. Determine if CMOS still utilizes RAM, requiring a battery on the motherboard, or has it evolved into using EEPROM? The CMOS still utilizes RAM but it is being rapidly replaced with EEPROM in todays time. EEPROM is a small chip that data can be written and re-written to with codes. As we all know RAM losses data every time you loss power to your system, well EEPROM does not require a power source to maintain its data. Although EEPROM is relatively slower than RAM it is fine for applications, such as storing saved BIOS settings?