Computer hard drive history

1890Herman Hollerith developed a method for machines to record and store information onto punch cards to be used for the US census. He later formed the company we know as IBM today.
1946Freddie Williams applies for a patent on his CRT (cathode ray tube) storing device in December. The device that later became known as the Williams tube is capable of storing between 512 and 1024 bits of data.
1946The Selectron tube capable of storing 256 bits of information begins development.
1950Before using disks, storage units used magnetic drums referred to as drum machines or drum-memory computers. The first commercial drum machine was developed by the Engineering Research Associates of Minneapolis and used by the U.S. Navy ERA 110. Drum machines were used throughout the early ’50s.
1956On September 13, 1956, the IBM 305 RAMAC was the first computer to be shipped with a hard drive. The drive contained 50 24-inch platters, was the size of two refrigerators, and weighed a ton. It could store only five megabytes of information and each megabyte cost $10,000.
1959Chucking Grinder Co. begins working on disk drives.
1961Chucking Grinder Co. moves to Walled Lake Michigan and becomes Bryant Computer Products, a subsidiary of Ex-Cello Corp. company.
1961IBM introduced the IBM 1301 disk storage unit on June 2, 1961, capable of storing 28 million characters.
1962On October 11, 1962, IBM introduced the IBM 1311 disk storage drive, which stored.
1973IBM ships the 3340 Winchester hard drive with two spindles and a capacity of 30 MB. This drive was the first drive to utilize the Winchester technology.
1980Seagate introduces the ST506 hard drive, the first hard drive developed for microcomputers.
1980The first Gigabyte hard drive is introduced by IBM and weighed 550lbs with a price of $44,000.
1986The original SCSI, SCSI-1 is developed.
1990SCSI-2 is approved.
1991Sandisk developed the first non-flash SSD (solid-state drive) with a capacity of 20 MB.
1995The first flash-based, non-volatile SSD is developed by M-Systems.
1996SCSI-3 is approved.
2002Hitachi closed deal to purchase IBM’s hard drive operation for $2.05 billion on December 31, 2002.
2007The first 1 TB (terabyte) hard drive, developed by Hitachi, was released in January 2007.