Related Clues:

• The "S" in iOS: Abbr
• Part of O.S.: Abbr
• Technique: Abbr
• Action plan (abbr)
• MS-DOS component
• The "S" of iOS: Abbr
• The "S" in CBS: Abbr
• Part of GPS (Abbr.)
• Admin's domain, for short
• The 'S' in GPS (Abbr.)
• Lead-in to op
• Part of DOS or GPS
• ___ admin (server overseer)
• NES part: Abbr
• — admin