Today we readily use CD/DVD, Memory Card and Hard Disks to store data. But the real evolution of storing digital data began much earlier. The first known use of storing digital information was in 1890 when Herman Hollerith used punch cards to read and store data from a computer.
The next breakthrough was invention of cassette tapes which was very popular to store audio and video until CD and DVD come into effect at the end of 20th century. CD and DVD were later overcome by pen drives, memory cards and hard disks.
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This infographic presents the complete revolution of digital memory. Read on :