Office machines and data processing equipment--Function key symbols on typewriters
Office machines and data processing equipments--Line spacings and character spacings
Office machines and data processing equipment--Keyboard layouts for numeric applications
special telemetry data processing equipment
punched card data processing equipment
At a data processing node, data processing equipment and associated software.
Office machines and data processing equipment--Principles governing the positioning of control keys on key-boards
In a computer network, a node at which data processing equipment is located.
