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到目前为止,计算机上配置的硬盘机先后共使用了六种接口类型,这些接口类型和相应的性能特点如下。 1.ST 506/412接口 ST接口是Seagate公司开发并首先用于ST506型磁盘机,采用两条扁平电缆连接线(一条是40根的控制线,另外一条是20根的数据线)与硬盘控制器相连,其数据传输率为5MB/S。最多可支持四个硬盘驱动器,最大硬盘空间为150MB。该接口在PC/XT机和早期的PC/AT机中曾大量使用,但目前已不再广泛应用,主要在386以下低档计算机上还可以看见。 2.ESDI接口 ESDI接口是在ST 506/412接口基础上改进的一种接口,采用两条扁平电缆连接线(一条)是34根的控制线,另外一条是20根的数据线)与硬盘控制器相连,其数据传输率为10MB/S,最多可支持四个硬盘驱动器,硬盘空间为40～300MB,最大硬盘空间为600MB。该接口自身有局限性,因而不但无法得到广泛应用,而且现在已经遭到淘汰。 3.IDE接口 IDE接口最初由Compaq集团的Western
So far, the hard disk drive configured on the computer has used a total of six interface types, the type of these interfaces and the corresponding performance characteristics are as follows. 1.ST 506/412 Interface The ST interface was developed by Seagate and first used in the ST506 disk drive. It uses two flat cable connections (one 40 control line and the other 20 data lines) and the hard disk control Connected, the data transfer rate of 5MB / S. Supports up to four hard drives with a maximum of 150MB of hard disk space. The interface in the PC / XT machines and early PC / AT machine has been extensive use, but is no longer widely used, mainly in the following low-end computer 386 can see. 2. ESDI interface ESDI interface is based on the ST 506/412 interface to improve an interface using two flat cable cable (one) is 34 control lines, the other one is 20 data lines) and the hard disk control Connected, the data transfer rate of 10MB / S, up to four hard drives, hard disk space 40 ~ 300MB, the maximum hard disk space 600MB. The interface itself has limitations, so not only can not be widely used, and has now been eliminated. 3. IDE Interface The IDE interface was originally developed by the Compaq Group of Western