Hard Drive Anureet, Bianca, Sarah

Hard Drive Information The hard drive is made of magnetic strips, motor, heads and controllers. What they do is the components work together to store, write, read or retrieve data on to the computer.

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The hard drive is what stores stuff on your computer. The hard drive is what determines how much data you can have. Music uses 3MB to 10MB on you computer depending on the song but other than that what you have on your computer is basic programs. Information

You can buy as much storage as you want. The speed of your computer also works with how much space you have on your computer. The solid state hard drive is better because there are no moving parts but it does depend on what hard drive you buy. Information

History In 1953, the engineers at IBM's San Jose California laboratory invented the hard disk drive. The disk drive created a new level in the computer data hierarchy, then termed Random Access Storage but today known as secondary storage. It is less expensive and slower than the main memory (then typically drums ) but faster and more expensive than tape drives.

History The IBM 350 Disk File, invented by Reynold Johnson, was introduced in 1956 with the IBM 305 RAMAC computer. This drive had fifty 24 inches (0.61m) platters, with a total capacity of five million characters

Evolution The capacity of hard drives has grown exponentially over time. When hard drives became available for personal computers, they offered 5-megabyte capacity. During the mid-1990s the typical hard disk drive for a PC had a capacity of about 1 gigabyte. As of January 2012, desktop hard disk drives typically had a capacity of 500 to 2000 gigabytes, while the largest-capacity drives were 4 terabytes.

Evolution As the 1980s began, hard disk drives were a rare and very expensive optional feature on personal computers (Pcs) By the late '80s, hard disk drives were standard on all but the cheapest PC. As of December 2011, virtually all of the world's HDDs were manufactured by four large companies: Seagate, Western Digital, Toshiba and Hitachi (HGST). Western Digital was attempting to acquire HGST.

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