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#fcb

2 posts

FreeDOSDeep Dive October 3, 2026 7 min read

DOS File Control Blocks: Record I/O and Legacy Compatibility

Understand the DOS FCB layout, DTA hazards, sequential and random records, extended attributes, and when FreeDOS programs should use handles instead.

#freedos#dos#fcb

FreeDOSDeep Dive October 3, 2026 7 min read

FreeDOS documents FCBS= as ignored because it simulates legacy FCBs from handle data; learn what that means and how to test old applications instead.

#freedos#fcbs#fcb