Most voice-over-Internet Protocol (VoIP) systems install on a home computer and require a special modem.

FORBES

And by exploiting the Internet to distribute the cures to computer diseases, such systems offer a promising way to prevent outbreaks from becoming epidemics.

ECONOMIST: A thousand ills require a thousand cures

In it the White House's former counterterrorism chief, Richard Clarke, urged a wholesale reboot of government computer systems and new security rules for electric utilities and Internet access providers.

FORBES: The Next Threat

Our technology industry component covers 11 six-digit NAICS sectors covering information industries such as software publishing, Internet publishing, data processing, and tech-related business services such as computer systems design, custom programming, engineering services, and research and development.

FORBES: Methodology For Forbes' Best Cities For Tech Jobs List

Software now covers a maze of different industries, including applications software, operating systems, databases, the Internet, computer-aided design and networking.

ECONOMIST: Silicon Valley

The law essentially criminalizes anyone who gains unauthorized access to computer systems, and many private individuals have used the law to sue Internet companies like Yahoo, Amazon.com and DoubleClick for placing "cookies" on computer hard drives, Freeman said.

CNN: Image of love bug

For example, industrial control systems are largely computer controlled and they can be reached in some cases from the Internet.

CNN: Cyber arms control? Forget about it