Today in computer history: November 21th

Below are technology and computer-related events that happened on November 21th of every year during the evolution of computers. November 21th is the 326th day of 2024, which is a leap year. There are 40 days left in the year from this day.

HardwareNovember 21, 1877
147 years ago

Thomas Edison invents and announces the first phonograph capable of recording and replaying sounds.

CompanyNovember 21, 2016
8 years ago

Symantec announced it had purchased LifeLock company for $2.3 billion.

Recording, Replay, Sound, Symantec

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