Computer Data Storage History – Now And Then


We’ve come a long way from punch cards to memory cards. From the 1700’s all the way to 2009 things have changed so much. Everyone always says how fast the computer industry changes, but from about 1725 through to 1925 it barely changed at all.

You had punch cards, paper tape, magnetic tape then in a great leap forward we started storing data on regular audio cassette tapes in the early 70’s through to the start of the 80’s.

Here are just a few storage technologies that really changed how we store data (before the 1990’s):

IBM Punch Cards (1725-1925):

 
(Image Credit: maximumPC – computer data storage through the ages)

Audio Cassette Tape (Early 1970’s to late 1980’s):


(Image Credit: maximumPC – computer data storage through the ages)

5.25” Floppy Disk (1976-1982)

There were 8” floppy disks which came out before these, but the 5.25” floppy disk was the first major magnetic disk storage to be used in mainstream computing.

So just remember, whenever you use your SD cards or 1TB external hard disk drives, your compact flash or mini disk just remember where it all started!

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