Atari 800 User Manual

210 User's Ha ndb ook to the Atari 400/ 800 Comp uters
the various sectors is determined by co unting the numb er of
hol es occuring after the first sector. A hard sectored diskette is
depict ed in Illustrati on 7-4.
Soft sectored diskettes have
on ly one ind ex hole as shown in
Illu st ration 7-5. This so lit ary index hole marks the loca tion of the
fir st sec tor . By timin g the rot at ion speed of the fl oppy diskette,
the l ocation of the other sectors ca n be determ ined. The Atari
810 uses soft-sectored diskettes.
Illustration 7-4. Hard Sectored Diskette
2 Ind ex
Hol es
Sector

Atari 800 Specifications

General

Processor	MOS Technology 6502
Processor Speed	1.79 MHz
ROM	10 KB
Graphics	ANTIC and GTIA chips
Release Year	1979
Display Resolution	up to 320 x 192
Colors	128 colors
Sound	4 channels
Storage	Cartridge, cassette, floppy disk
Ports	Cartridge, serial, monitor
Operating System	Atari OS