In the 1960s, computers were typically large, bulky machines used for the processing of text data or mathematical equations. Processing was typically performed using punchcards, or if you're really lucky, a terminal with a monochrome display. A pocket calculator typically contains more computing power than a 1960's computer, and a smartphone contains more computing power than the average 1960's data center.

http://blog.kenbuckler.com/2020/08/before-photoshop-1960s-cia-computerized.html