Geek Fact for December 30th

In 1938, the electronic television system was patented by Vladimir K. Zworykin.

Throughout the 1920s, RCA’s Vladimir Zworykin was busy developing the Iconoscope camera tube that would become the foundation for the all-electronic systems that would follow. Zworykin’s work was based on a CRT receiver invented by his instructor at St. Petersburg Institute of Technology in Russia in 1907. Zworykin’s 1923 patent would not be approved until 1938 because so many revisions were made.

For more information on early television, visit,2542,t=videoTV+history&i=53869,00.asp


In 1973, the first picture was taken of a comet from space.

The crew of Skylab SL-4 (Gerald Carr, Edward Gibson, William Pogue) obtained the first picture of a comet from space. The comet was Comet Kohoutek.

For more information on space missions, visit


In 1985, IBM PC-DOS Version 3.2 was released.

PC DOS 3.2 required 128 KB RAM and added 3.5-inch floppy disk drive support. The operating system was supplied on one 720 KB 3.5-inch floppy disk or two 5.25-inch 380 KB floppy disks.

For more information on computer operating systems, visit


In 2010, the internet population of China reached 450 million.

It took about seven years for the total number of Chinese Internet users to go from 30 to over 300 million, but it took less than half that time for mobile Internet users to do the same. China has as many Internet users as the total population of USA, the UK, Canada and Germany combined.

For more information on China internet usage, visit


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About the Author

Judy Novotny

Judy is a computer veteran with 30 years of experience. She has owned everything from a TRS-80, Apple IIe and various Windows-based PCs. She is currently living in her Apple ecosystem at home consisting of an iPhone, iPad, iMac, MacBook, Apple TV, iPod nano and two Time Capsules. She is a fan of all things mobile since she got her first Palm Pilot in 1999. Check out her iPad app, Number Wizard, in the App Store. Follow her on Twitter @junovotech or at