Computer hard drive history

Updated: 04/12/2021 by Computer Hope
Computer memory history
Year Event
1890 Herman 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.
1946 Freddie Williams applied for a patent on his CRT (cathode ray tube) storing device in December. The device that later became known as the Williams tube was capable of storing between 512 and 1024 bits of data.
1946 The Selectron tube capable of storing 256 bits of information began development.
1950 Before 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.
1956 On 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.
1959 Chucking Grinder Co. began working on disk drives.
1961 Chucking Grinder Co. moved to Walled Lake Michigan and became Bryant Computer Products, a subsidiary of Ex-Cello Corp. company.
1961 IBM introduced the IBM 1301 disk storage unit on June 2, 1961, capable of storing 28 million characters.
1962 On October 11, 1962, IBM introduced the IBM 1311 disk storage drive, which stored 2 million characters.
1973 IBM shipped 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.
1980 Seagate introduced the ST506 hard drive, the first hard drive developed for microcomputers.
1980 The first gigabyte hard drive was introduced by IBM and weighed 550lbs with a price of $44,000.
1986 The original SCSI, SCSI-1, was developed.
1990 SCSI-2 was approved.
1991 Sandisk (formerly SunDisk) developed the first non-flash SSD (solid-state drive) with a capacity of 20 MB.
1995 The first flash-based, non-volatile SSD was developed by M-Systems.
1996 SCSI-3 was approved.
1998 SanDisk released the first SSD with PATA interfaces in 1998.
2002 Hitachi closed deal to purchase IBM's hard drive operation for $2.05 billion on December 31, 2002.
2007 The first 1 TB (terabyte) hard drive, developed by Hitachi, was released in January 2007.

Computer History