The hard disk has fascinating history, the hard disk was just a fifty two foot diameter disks holding five MB of data. In 1950, the Engineering Research Associates built the first commercial magnetic drum storage unit for the U.S. Navy which was named by ERA 110. It was able to store one million bits of data and retrieve a word in a second. In 1956, the IBM invented the first computer disk storage system, random access method of accounting and control. This system could store five MB of data. It had fifty, 24-inch diameter disks. In the early 1961, IBM had invented the first disk drive with air bearing heads and in 1963 they introduced the removable disk pack drive. In 1970 the eight inch floppy disk drive was introduced by IBM.

In 1973, IBM designed the hard disk drive, the predecessor of all current hard disk drives. In 1980, Seagate Technology introduced the first hard disk drive for microcomputers. In 1983 Rodime made the first 3.5 inch rigid disk drive. The first CD-ROM drives were designed in 1984, and followed in 1985. Quantum was the first to introduce the hard card in 1985. In 1986 the first 3 /12" hard disks with voice coil actuators were introduced. In 1988 Conner introduced the first hard disk drives. This drive can hold one gigabyte on a disk which is the size of an American quarter.

The world's first gigabyte-capacity disk drive, the IBM 3380, introduced in 1980, was the size of a refrigerator, weighed 550 pounds. Samsung Electronics has designed a hard-disk drive. The launch of the latest version of the hard disk drive was SPH-V7900 which comes less than a year after Samsung became the first cell phone maker in the world to put a hard disk drive phone on the market. The SPH-V5400 went on sale in December 2004. Like its predecessor, the new phone will be a CDMA model and sold in South Korea only. The hard-disk drive has a capacity of 3GB, which is twice that of the previous phone and enough space for several hundred audio files or a few hours of video.

The phone can play files in several formats including MPEG-4/H.264 video and MPEG-4 AAC, AAC+ and MP3 audio. Other features of the clamshell handset include a 2-megapixel camera with 2X optical zoom and TV output socket. The screen is a QVGA (240 pixels by 320 pixels) resolution TFT (thin film transistor) LCD (liquid crystal display). It measures 103 millimeters by 52 mm by 27.6 mm and weighs 165 grams. Samsung is also preparing a hard-disk drive-based smart phone for the European market. The SGH-I300 also packs a 3GB hard-disk drive and runs on Windows Mobile operating system.

Samsung first showed the phone at the Germany, in March this year but was not for sale. Current plans call for the phone to go on sale in Europe; Samsung said that it has satisfied the enterprise data center requirement of scalability, performance, reliability and manageability. Therefore, the latest advancement in the hard disk will defiantly lead the market of hard disks towards the compactable and reliable technology.

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