memory enter
2.Primary memory is known as random access memory (RAM) and simple named memory. It is the storage area within the computer that holds programs and data during processing. Memory is only temporary storage area; when processing is complete, memory is cleared. The user needs to load or enter data and programs into the computer memory when using any application on the computer.
5.The combination of multimedia technology and network technology of the computer leads to propagate technology and enter the unprecedented one: The accurate processing, rare memory capacity and fast and low-priced transmission of duplication, broke the existed spread pattern at developing stage. Fair use system receives the new test of relation between rights and obligations of copyright of the balance.

