The invention of computers can be dated back to the early 1820s when Charles Babbage designed the ‘Difference Engine,’ a mechanical computer capable of performing simple calculations. As we celebrate World Computer Literacy Day 2022, let's take a look at the history and significance of this day. ���� World Computer Literacy Day 2022: Know Date, History and Significance of the Day That Promotes Digital Literacy Among Underserved Communities Globally.