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硬盘是电脑软件的仓库,不但容量大,而且读、写速度快,所存储的资料,不受电源供应的限制,可以长期保存,安全可靠。早期所用的低档电脑,没装硬盘;程序、数据都用软盘储存、传送,不仅操作麻烦,而且许多软件的功能,根本无法发挥。近期所用的中、高档电脑,已经没有不装硬盘的了。 物理硬盘,型号很多、规格各异。早期产品,将它们分成46类,每一类号都有特定的柱面数、磁头数、扇区数和总容量,并将这些资料,登录在CMOS中。用户只需键入硬盘的型号数码,DOS
Hard disk is a computer software warehouse, not only large capacity, and read and write speed, the stored data, without the power supply restrictions, long-term preservation, safe and reliable. Early use of low-end computer, no hard disk installed; procedures, data are stored using a floppy disk, transfer, not only the operation of trouble, and many software features, simply can not play. Recently used in high-end computers, there is no hard disk installed. Physical hard drive, many models, different specifications. Early products, they are divided into 46 categories, each number has a specific number of cylinders, heads, sectors and total capacity, and these data are registered in the CMOS. Users simply type the hard disk model number, DOS