Automation System
Historically, central systems were used because:

All of these
memory consumed a large amount of power
memory was very expensive
semiconductor memory was not available
None of these

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Automation System
Ergonomics refers to:

None of these
the level of involvement the operator has with the workstation
the human aspect of the environment around the workstation as well as the workstation itself
the technology involved in the workstation itself
the cost relationship of the workstation versus productivity

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