1. An operating system developed by Bill Gates for personal computers
   - MS-DOS

Type of: disk operating system, DOS

• Rattus norvegicus
• Rattus rattus
• ratty
• Rau-Sed
• raucous
• raucously
• raucousness
• Raudixin
• rauli beech
• raunch
• raunchily
• raunchiness
• raunchy
• rauvolfia
• rauwolfia
• Rauwolfia serpentina
• ravage
• ravaged
• ravager
• ravaging
• rave
• rave-up
• ravehook
• ravel
• ravel out