Apple DOS

E524201
Apple II software disk operating system

Apple DOS was the primary disk operating system for early Apple II computers, providing file management and program loading from floppy disks in the late 1970s and early 1980s.

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Observed surface forms (3)

Surface form Occurrences
Apple DOS 3.3 1
Apple DOS 3.3 disks 1
Apple II DOS 1

Statements (48)

Predicate Object
instanceOf Apple II software ⓘ
disk operating system ⓘ
architecture 8-bit ⓘ
developer Apple Computer NERFINISHED ⓘ
Shepardson Microsystems NERFINISHED ⓘ
discontinued true ⓘ
distributionMethod floppy disk ⓘ
fileSystem Apple DOS file system ⓘ
initialReleaseDate 1978 ⓘ
kernelType monolithic kernel ⓘ
latestReleaseDate 1980 ⓘ
latestReleaseVersion Apple DOS 3.3 NERFINISHED ⓘ
notableVersion Apple DOS 3.3 NERFINISHED ⓘ
platform Apple II NERFINISHED ⓘ
Apple II Plus NERFINISHED ⓘ
Apple IIe NERFINISHED ⓘ
primaryLanguage 6502 assembly language ⓘ
primaryStorageMedium 5.25-inch floppy disk ⓘ
primaryUsePeriod early 1980s ⓘ
late 1970s ⓘ
providesCommand BLOAD ⓘ
BSAVE ⓘ
CATALOG ⓘ
CLOSE ⓘ
DELETE ⓘ
INIT ⓘ
LOAD ⓘ
OPEN ⓘ
READ ⓘ
RENAME ⓘ
RUN ⓘ
SAVE ⓘ
WRITE ⓘ
releaseVersion Apple DOS 3.1 NERFINISHED ⓘ
Apple DOS 3.2 NERFINISHED ⓘ
Apple DOS 3.2.1 NERFINISHED ⓘ
Apple DOS 3.3 NERFINISHED ⓘ
replacedBy ProDOS NERFINISHED ⓘ
successor ProDOS NERFINISHED ⓘ
supports35TrackDisks true ⓘ
supportsApplesoftBASICPrograms true ⓘ
supportsDiskDrives Disk II NERFINISHED ⓘ
supportsIntegerBASICPrograms true ⓘ
supportsRandomAccessFiles true ⓘ
supportsSequentialAccessFiles true ⓘ
supportsSingleSidedDisks true ⓘ
targetCPU MOS Technology 6502 NERFINISHED ⓘ
userInterface command-line interface ⓘ

Referenced by (6)

Full triples — surface form annotated when it differs from this entity's canonical label.

Apple II → operatingSystem → Apple DOS ⓘ
VisiCalc → operatingSystem → Apple DOS ⓘ
this entity surface form: Apple II DOS
Apple 5.25" floppy disk drive → operatingSystemSupport → Apple DOS ⓘ
Apple UniDisk 5.25 → supports → Apple DOS ⓘ
this entity surface form: Apple DOS 3.3 disks
Apple UniDisk 5.25 → operatingSystem → Apple DOS ⓘ
ProDOS → predecessor → Apple DOS ⓘ
this entity surface form: Apple DOS 3.3