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福建顺冒县张旭问:软盘驱动器和硬盘驱动器各有何作用?各自有什么特点? 答:磁盘驱动器是电脑必备的外部设备。由于电脑以存储程序方式工作,必须先将要处理的数据和处理用的程序预先装入存储器,再由电脑自动执行程序。因此存储器对电脑是必不可少的。而电脑主机中的存贮器一般容量仅几百KB～几MB,不能满足需要,必须由外存储器来补充。磁盘存储器采用磁表面存储技术,单张软盘存储器容量为1.2MB或1.44MB两种。硬盘存储器容量可多达几百MB到12GB(1G=1KM)。因此大量程序和数据都可以保存在磁盘中,并且在操作系统控制下随
Fushuian Zhang Xu, fled to ask: floppy drives and hard drives each have their own role? What are the characteristics of each? A: The disk drive is a computer necessary external equipment. Since the computer works as a storage program, the data to be processed and the processing program must be pre-loaded into the memory before the program is automatically executed by the computer. Therefore, memory is essential to the computer. The host computer’s general memory capacity of only a few hundred KB ~ a few MB, can not meet the needs of the external memory must be added. Magnetic disk storage using magnetic surface storage technology, single floppy disk storage capacity of 1.2MB or 1.44MB two. Hard disk storage capacity can be as much as a few hundred MB to 12GB (1G = 1KM). So a large number of programs and data can be saved in the disk, and under the control of the operating system