Related Clues:

• OS part: Abbr
• Part of TBS, for short
• Extension for Windows driver files
• CBS segment, for short?
• Method, for short
• GPS part (abbr.)
• Part of MS-DOS (abbr.)
• ___ admin (IT boss)
• DOS part: Abbr
• PBS part: Abbr
• ___ admin (IT pro)
• Scheme: Abbr
• Pt. of OS or GPS
• The 'S' in iOS: Abbr
• The "S" in iOS: Abbr