Here is a list of the average computer storage over the years:

  • 1956: 5MB (IBM RAMAC 305)
  • 1961: 1MB (IBM 1311 Disk Storage Unit)
  • 1970: 200KB (IBM System/370 Model 145)
  • 1980: 10MB (Seagate ST-506 HDD)
  • 1990: 200MB (Maxtor 7345 SCSI HDD)
  • 2000: 20GB (Western Digital Caviar HDD)
  • 2010: 2TB (Seagate Barracuda HDD)
  • 2015: 8TB (Seagate Archive HDD)
  • 2020: 16TB (Seagate Exos HDD)

The storage capacity of computers has come a long way since the invention of the first hard disk drive (HDD) in 1956. With advancements in technology and the ever-increasing demand for storage, the average computer storage has grown exponentially over the years.

In 1956, IBM introduced the first commercial HDD, the IBM RAMAC 305, which had a storage capacity of 5 megabytes (MB). This was a significant breakthrough at the time, as it allowed for the storage of large amounts of data on a single device. However, the cost of the RAMAC 305 was extremely high, and it was only used by large corporations and government agencies.

Throughout the 1960s, HDDs continued to improve, with the introduction of the IBM 1311 Disk Storage Unit in 1961, which had a storage capacity of 1 MB. The 1311 was the first disk drive to use removable disk packs, which allowed for faster data access and increased storage capacity.

By the 1970s, computer storage had become more affordable and accessible to a wider range of users. The IBM System/370 Model 145, which was introduced in 1970, had a storage capacity of 200 kilobytes (KB). This was a significant improvement over previous HDDs and allowed for the storage of more data on a single device.

In the 1980s, HDDs became even more prevalent, with the introduction of the Seagate ST-506 HDD in 1980, which had a storage capacity of 10 MB. The ST-506 was the first HDD to use a 5.25-inch form factor, which made it more compatible with personal computers. This made it possible for more individuals to own a computer and store larger amounts of data.

The 1990s saw even more improvements in computer storage technology. In 1990, Maxtor introduced the 7345 SCSI HDD, which had a storage capacity of 200 MB. This was a significant improvement over previous HDDs and allowed for the storage of even more data on a single device. Additionally, the introduction of SCSI (Small Computer System Interface) made it possible to connect multiple storage devices to a single computer, further increasing storage capacity.

The 2000s saw a shift towards consumer electronics and the introduction of digital cameras, music players, and other devices that required large amounts of storage. In 2001, Western Digital introduced the Caviar HDD, which had a storage capacity of 20 GB. The Caviar was one of the first HDDs to use the 3.5-inch form factor, which made it more compatible with personal computers.

In 2010, Seagate introduced the Barracuda HDD, which had a storage capacity of 2 terabytes (TB). This was a significant improvement over previous HDDs and allowed for the storage of massive amounts of data on a single device. Additionally, the introduction of USB 3.0 and Thunderbolt made it possible to transfer data at much faster speeds, further improving the user experience.

The 2010s saw the introduction of solid-state drives (SSDs), which offered faster read and write speeds and lower power consumption than HDDs. However, HDDs continued to be the primary form of computer storage for many users, and HDD manufacturers continued to improve their products. In 2015, Seagate introduced the Archive HDD, which had a storage capacity of 8 TB. The Archive HDD was designed for long-term storage of data and was used primarily by businesses and institutions.

As of 2020, the average HDD storage capacity has continued to increase. The Seagate Exos HDD, which was introduced in 2020, has a storage capacity of 16 TB. Additionally, SSDs have become more affordable.