World Computing Day
World Computing Day is held on December 9. This event in the first decade of the month December is annual. 
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This is the day to honor one of the most valuable tools for organizing information. Computers are one of the most important tools created by human beings to facilitate the classification of information. New technologies are becoming more and more integrated into our lives, all thanks to the success of computers.
As has been the case since the First Meeting of Computer Professionals in 1983, World Computing Day is celebrated every December 9. Although it may seem that the choice of date is random, nothing could be further from the truth. The day was chosen because Grace Hopper was born on December 9, 1906. A pioneer in the world of computing, hence the tribute.
Similar holidays and events, festivals and interesting facts
Broadcaster's Day in Peru on December 8
Immaculate Conception on December 8 (public holiday in several countries, a holy day of obligation in others);
International Radio and Television Day for Children on December 8
Beaches Day in Uruguay on December 8
CARICOM–Cuba Day on December 8 (Caribbean Community);
Día del Ejército or Army Day in Peru on December 9 (commemorating the victory of the patriotic armed forces at the Battle of Ayacucho in 1824);
International Day for the Dignity of Child and Adolescent Workers on December 9
International Day for Secularism and Freedom of Conscience on December 9
Ophthalmologist Day in Argentina and Cuba on December 13
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