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Atari SIO

The Serial Input/Output system, universally known as SIO, was a proprietary peripheral bus and related software protocol stacks used on the Atari 8-bit computers to provide most input/output duties for those computers. Unlike most I/O systems of the era, such as RS-232, SIO included a lightweight protocol that allowed multiple devices to be attached to a…

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Bitrate
~120 kbit/s maximum
Connector
D-subminiature variant
Data signal
Bi-directional serial
Designed
1978; 48 years ago (1978)
Designer
Joe Decuir/Atari Inc.
External
yes

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Map overview Semantic statistics

Atari SIO

Nodes53
Edges52
Triples27
Avg. degree1.96
Density0.037736
Components1

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Atari SIO

Top relations

Bitrate · 1
Atari SIO → ~120 kbit/s maximum
Connector · 1
Atari SIO → D-subminiature variant
Data signal · 1
Atari SIO → Bi-directional serial
Designed · 1
Atari SIO → 1978; 48 years ago (1978)
Designer · 1
Atari SIO → Joe Decuir/Atari Inc.
External · 1
Atari SIO → yes
Hot pluggable · 1
Atari SIO → in theory
Manufacturer · 1
Atari SIO → Atari Inc.
Max. devices · 1
Atari SIO → 256 maximum 8 in use
Pin 1 · 1
Atari SIO → CLOCK IN

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Important terminology

system sio atari data used devices pokey cassette would decuir device one bus could bit serial output support pins pin

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Atari SIOBitrate~120 kbit/s maximum1.00infobox
Atari SIOConnectorD-subminiature variant1.00infobox
Atari SIOData signalBi-directional serial1.00infobox
Atari SIODesigned1978; 48 years ago (1978)1.00infobox
Atari SIODesignerJoe Decuir/Atari Inc.1.00infobox
Atari SIOExternalyes1.00infobox
Atari SIOHot pluggablein theory1.00infobox
Atari SIOManufacturerAtari Inc.1.00infobox
Atari SIOMax. devices256 maximum 8 in use1.00infobox
Atari SIOPin 1CLOCK IN1.00infobox
Atari SIOPin 10+5V/READY1.00infobox
Atari SIOPin 11AUDIO IN1.00infobox
Atari SIOPin 12+12V1.00infobox
Atari SIOPin 13INTERRUPT1.00infobox
Atari SIOPin 2CLOCK OUT1.00infobox
Atari SIOPin 3DATA IN1.00infobox
Atari SIOPin 4GND1.00infobox
Atari SIOPin 5DATA OUT1.00infobox
Atari SIOPin 6GND1.00infobox
Atari SIOPin 7COMMAND1.00infobox
Atari SIOPin 8MOTOR CONTROL1.00infobox
Atari SIOPin 9PROCEED1.00infobox
Atari SIOPins131.00infobox
Atari SIOProduced1979 to 19921.00infobox
Atari SIOProtocolSerial1.00infobox
Atari SIOTypeserial bus1.00infobox
Atari SIOWidth8 + start/stop = 101.00infobox

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