QUESTION 10 The numbering system used by digital computers as machine language is O Binary number system O Decimal number system O Hexadecimal number system O None of the above QUESTION 11 When we refer to system memory or RAM as being volatile, we mean O It is made of flammable materials that may burst into flames if not adequately vented and cooled. O Without electrical current to the circuit the data in memory will no longer be saved in the system. Data is kept available to the system only when it is referenced by a variable. The data is not reliable and may become corrupt if allowed to stay in memory too long