Definition and function Hard disk computer - Hard drive is a computer hardware that serves as a data storage media. The stored data can include the operating system, our personal data and applications supporting computer performance, hard disk has a very important role on the computer system for a computer without a hard drive, the computer can not perform his duties.
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Definition and function Hard disk computer |
Along with the development of increasingly rapid computer, the hard disk is also experiencing growth, both in terms of capacity development, forms, models as well as the access speed of the hard disk itself. The size of the hard disk unit is giga bytes (GB), for example: 20GB, 40Gb, 80Gb, 120 GB, 160GB, 256 GB, 320 GB, 500 GB, and so on, because the current hard disk capacity becomes larger.
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Definition and function Hard disk computer |
Based on the development of the hard disk, there are three jenlis hard disk is known today, including:
- Hard disk Parallel ATA (PATA), is used for older models of computers that use a 40 pin cable for connection to the motherboard that are shaped like ribbons, usually computer technicians call with a data cable. Discount ATA Hard disk rotational speed of 3600 rpm or ATA 66, 5400 rpm or 7200 rpm ATA 100 and 133 or ATA.
- Hard disk Serial ATA (SATA) hard disk is the same as the PATA hard disk, only the difference between them lies in the ports and cables are used to connect the hard disk to the motherboard. SATA cable on the hard disk has a smaller size than the 40 pin IDE cable SATA but has a speed of 7200 rpm so that the data transfer rate on the SATA cables to be faster.
SCSI hard disk is the hard disk that has a very fast access speed than hard disk before reaching 10,000 rpm. Hard disk is not used for home or computer hard disk is used for the server computer. Interface SCSI hard disk using the I / O card that connects the hard disk to the mainboard.
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