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For example, the first commercial hard drive, IBM's RAMAC in 1957, supplied 3.75 MB for $34,500, or $9,200 per megabyte. In 1989, a 40 MB hard drive cost $1200, or $30/MB. And in 2018, 4 Tb drives sold for $75, or 1.9¢/GB, an improvement of 1.5 million since 1989 and 520 million since the RAMAC.
As of 2016, the typical speed of a hard drive in an average desktop computer is 7,200 rpm, whereas low-cost desktop computers may use 5,900 rpm or 5,400 rpm drives.
Solid-state drive (SSD) Hard disk drive (HDD) Price per capacity SSDs are generally more expensive than HDDs and are expected to remain so. As of early 2018, SSD prices were around $0.30 per gigabyte for 4 TB models. [23] HDDs, as of early 2018, were priced around $0.02 to $0.03 per gigabyte for 1 TB models. [23] Storage capacity
The ST-506 HDD was the first 5.25 inch hard disk drive, introduced in 1980 [3] by Shugart Technology (now Seagate Technology).It stored up to 5 megabytes after formatting (153 cylinders, 4 heads, 32 sectors/track, 256 bytes/sector) [4] and cost US$1,500 (equivalent to $5,547 in 2023). [5]
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On October 17, 1994, IBM's Storage Systems division announced three new families of hard disk drives, the Travelstar 2 1 ⁄ 2-inch family for notebooks, the Deskstar 3 1 ⁄ 2-inch family for desktop applications and the Ultrastar 3 1 ⁄ 2-inch family for high performance computer system applications.
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