Acorn double density 3 1/2" disk
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Dan Tobias (Talk | contribs) (Created page with "{{FormatInfo |formattype=physical |subcat=Floppy disk }} The '''Acorn double density 3 1/2" disk''' was used with Acorn computers, a line of computers from the UK in the 1970s...") |
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The disks were double sided, with 80 tracks per side and variants having 16 sectors of 256 bytes, and 5 sectors of 1024 bytes, for a total capacity of 640 or 800 kilobytes respectively. [[MFM encoding]] was used. | The disks were double sided, with 80 tracks per side and variants having 16 sectors of 256 bytes, and 5 sectors of 1024 bytes, for a total capacity of 640 or 800 kilobytes respectively. [[MFM encoding]] was used. | ||
| − | The [[ADFS]] (Advanced Disc Filing System) was used as the file system, and [[BBC BASIC tokenized file]]s were among the file types stored. | + | The [[ADFS]] (Advanced Disc Filing System) was usually used as the file system (although the earlier [[DFS]] could be used), and [[BBC BASIC tokenized file]]s were among the file types stored. |
[[Category:Acorn computers]] | [[Category:Acorn computers]] | ||
Latest revision as of 01:23, 25 March 2026
The Acorn double density 3 1/2" disk was used with Acorn computers, a line of computers from the UK in the 1970s through 1990s, which included the popular BBC microcomputer, and eventually led to RISC OS. It succeeded the Acorn double density 5 1/4" disk, and was succeeded by the Acorn high density 3 1/2" disk.
The disks were double sided, with 80 tracks per side and variants having 16 sectors of 256 bytes, and 5 sectors of 1024 bytes, for a total capacity of 640 or 800 kilobytes respectively. MFM encoding was used.
The ADFS (Advanced Disc Filing System) was usually used as the file system (although the earlier DFS could be used), and BBC BASIC tokenized files were among the file types stored.
