Учеба

 http://cppgm.blogspot.com   C++
http://www.studentil.co.il  אתר הסטודנטים הישראלי
Комп. сети
http://citforum.ru/nets/protocols2/2_04_00.shtml
http://www.pccompci.com/converter/converter3.html
http://pinouts.ru/SerialPorts/Serial9_pinout.shtml
http://www.iwoxx.de/en/product/software/comtrace/support/webhelp/hs1050.htm
http://tehpoisk.ru/articles/RS232RS485RS422.
http://www.scienceprog.com/simple-ttl-to-rs232-adapter/
http://freecircuitdiagram.com/2009/04/24/ttl-rs232-level-converter-using-max232-ic/
http://www.doc-diy.net/electronics/rs232plug/
http://www.softelectro.ru/rs232.html
Видео
http://www.colorado.edu/physics/2000/index.pl?Page=tv/big_picture.html