HEATKEYS

The Microsoft Support home page is your support portal for Microsoft products. Download updates and find top issues, error messages, and troubleshooting tips for Windows XP, Windows Vista, Windows 7, Office 2010, the 2007 Microsoft Office system, and...

AT&T is a leader in telecommunication services, including cell phones, wireless, U-verse, digital TV, high speed internet, DSL, home phone, and bundled services.

MathWorks is the world’s leading developer of technical computing software for engineers and scientists in industry, government, and education

LinuxQuestions.org offers a free Linux forum where Linux newbies can ask questions and Linux experts can offer advice. Topics include security, installation, networking and much more.

Computing.Net is one of the biggest and oldest technical support web sites. It can help almost anyone obtain technical support for their computing needs.

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

Beyond Logic includes detailed information on Universal Serial Bus, Serial Ports (RS232), Parallel Ports (SPP/ECP/EPP/IEEE1284), Device Drivers and more. Most texts also come in PDF for easy Download & Printing

The Independent Newsletter of Windows Driver Programming

Linux blog by Vivek - Includes news, help, tutorials, programming, tips and how-to guides for Linux, UNIX, and BSD.

Free computer help and support. Answering all your computer related questions with complete information on all hardware and software.

Look RS232 can help you to debug your program connected to an RS232 external device.

A Command line reference for Windows, Powershell, vbscript, bash, OSX, Oracle and SQL Server