计算机硬盘是计算机系统中的重要部件,是计算机系统中信息永久存储或半永久存储的海量存储设备之一,硬盘担负着与内存互通信息的任务,在计算机的存储设备中使用率最高。因此,计算机硬盘质量好坏和功能强弱直接影响着计算机系统运行速率的快慢和执行软件的能力。同时,计算机硬盘又是一位娇嫩的“千金”,与其它电脑部件相比又显得十分“脆弱”。所以,全面了解计算机硬盘的质量、性能、相关技术指标,对于购置计算机是一件非常必要和有意义的事情。基本结构与技术 计算机硬盘主要由硬质磁合金盘片、磁头、磁头臂、磁头臂伺服定位系统和底盖电路板组成,决定计算机硬盘的技术指标也是围绕盘片大小、盘片多少、盘片存储密度、磁盘转速、磁头技术、伺服定位 Computer hard disk is an important part of computer system, which is one of the mass storage devices that information is permanently or semi-permanently stored in computer system. The hard disk takes on the task of exchanging information with memory and has the highest utilization rate in computer storage devices. Therefore, the quality of the computer hard disk and the strength of a direct impact on the speed of the computer system speed and the ability to execute the software. At the same time, the computer hard drive is a delicate “daughter”, compared with other computer components and it seems very “fragile.” Therefore, a comprehensive understanding of the quality of computer hard drives, performance, related technical indicators, for the purchase of computers is a very necessary and meaningful thing. Basic structure and technology Computer hard disk is mainly composed of hard magnetic alloy disk, head, head arm, head arm servo positioning system and the bottom cover circuit board, the technical indicators of the decision of the computer hard drive is also around the disk size, the number of disks, the disk Storage density, disk speed, head technology, servo positioning