Glossary

How To Protect

Secure Your Email

Browse the Web Safely

Safeguard Your Instant Messenger

File Sharing Protection

How They Attack

Vulnerabilities

Spyware

Spam

Phishing

Malware

Cybercrime

Misleading Applications

Tools & Resources

Threat Explorer

24x7 Protection with Norton Products

Virus Definitions & Security Updates

Glossary

Search Glossary

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | _1234567890

DOS (disk operating system)

An operating system that can be run from within Windows from a command shell. You cannot run Symantec Ghost from a command shell. A Windows 9x computer can be restarted into DOS. Windows Vista/NT/Me/XP/2000 computers cannot be restarted into DOS except with the use of a boot package containing DOS or using the Ghost virtual or boot partition.