why don't you give us some information
ROM
The same as the difference between a phonograph record and a phonograph. The CD-ROM is where the data is stored. the purpose of the CD-ROM drive is to read it.
in motherboard
The difference between CD ROM and WORM is that WORM allows to write once for the first time. Capacity is also a characteristic difference.
Yes it is
CPU
monitor keyboard cpu harddrive rom motherboard cables processor
Cu cpu rom
Ram & rom
power consumption heat production
Do you mean the difference between RAM and ROM? If that is what you meant then ROM is what is used to read discs that are put into the computer, but RAM is used to temporarily hold memory from desktop and web based applications.
the motherboard? :S