磁光盘

磁光盘SystemThe可移动的3.5英寸磁光(MO) 1992年驱动器由富士通首先介绍。 这张MO盘容量是128 MB。 今天MO盘可能使用商店2.3 GB数据。MO驱动变得很普遍由于它的易用。 您能为rewritng使用它为所有次数。 它是可靠的媒介为延伸到在30年期间的长期数据存储。 MO盘可能抵抗尘土，磁场。 Ultra Violet rays and X-raya. The MO drives are used for transferring large volumes of data, as well as storing and archiving files in industres, such as publishing , stelecommunications, medical, and banking.

Strecture of Magneto-Optical Disk

Microprocessor

The entire design of the PC is based on the microprocessor chip. The microprocessor can in data, perform arithmetic operation like addition, subtraction , division or are the data and the send out the result. It also performs comparison operation on data to check if they are equal, or if one is greater than the other.It also has the ability to perform logical operation on data. The microprocessor controls the activities of the various components of the computer and also responds to requests from the prepheral devices; for example, printer signals indicating that it as run out of paper.

The microprocessor consists of the Arithmetic-Logic init (ALU), The Control Unit and some special purpose storage areas called Registers. Using ALU, a microprocessor can perform mathematical operations like addition, subtraction,multiplication and division. Modern microprocessor contain floting point processors that can perform any complicated operations on large floting point number. During its ALU operations, the microprocessor holds its intermediate results in special purpose registers. These registers are storage areas, which are physically a part of the microprocessor chip. These are not accessible to the programmer, Other functions, a