Clue: PC software of old

We have 2 answers for the crossword clue PC software of old.

Possible Answers:

• EWING
• MSDOS

Related Clues:

• "Dallas" name
• Windows grew out of it
• Early PC platform
• Windows precursor
• "Dallas" surname
• Windows predecessor
• '80s-'90s Knicks star
• PC letters
• Platform introduced in 1981
• Computer operating system
• TV's Jock
• Patrick on the court
• Jock, J.R. or Bobby
• Basic PC environment
• Computer environment
• "Dallas" clan
• Windows forerunner
• Obsolescent PC environment
• Precursor to Windows
• Hagman's J.R.
• Basis for Windows, originally
• Former Knick center Patrick
• Some PCs use it
• Early PC software
• Jock or J.R. of "Dallas"
• ... and 18 more.

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