請問 +RW、-RW、-R 、+R、RAM 有甚麼分別?

有以下分別： +RW 可重寫格式,要'清洗'就可重寫；'+' 為電腦主要使用
-RW 可重寫格式,要'清洗'就可重寫；'－' 為電器主要使用e.g.影碟機＊ +R 可寫入DVD格式,WORM,(同一位置)只可寫一次 -R 可寫入DVD格式; WORM,(同一位置)只可寫一次 RAM 可重寫格式； 似HDD用,不用'清洗'就可重寫；但較貴；access time 快，

ＷＯＲＭ＝write once read many
＊但新型號的影碟機可同時支援'+'和'－'的DVD碟

RW = read and write
- can read and burn CDs
R = read only
- can only read CD

*note: the +, - indicates which CDs can be read
ex. if ur computer is -R, then your computer can only read CDs that are "-"

RAM = random access memory
-temporary workspace = u use this space for working with different programs such as word, excel... the more tasks you do, the more RAM is needed

( hope i didn't confuse you ^^)