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DOS uses letters of the alphabet to designate disk drive. How many disk drives can DOS address (recognize)?

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DOS uses letters of the alphabet to designate disk drive. How many disk drives can DOS address (recognize)? Answer: 26

DOS assigns drive letters from A to Z for disk drives. That means it can recognize and address up to 26 drives, each identified by a unique letter.

Question context

This question is part of 💻 Computing within the broader 💾 Computer Science subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.