This report presents the findings of a survey of personnel changes resulting from the installation of electronic-data processing equipment. It is concerned primarily with (1) the nature and source of staff in electronic-data processing units, and (2) the extent and nature of staff displacements resulting from the introduction of electronic-data processing (EDP). Data were gathered on 13,743 persons in 277 establishments which employed 527,000 workers during 1962 and 1963--approximately 50 percent of all workers in establishments with EDP installations at that time. The survey found that staffing of EDP units was largely accomplished by utilizing existing employees rather than recruitment from outside sources; 48.6 percent were transferred with no substantial change in duties; 27.1 percent were reassigned with substantial change in duties; and 24.3 percent were newly hired personnel. In most transfers, skill requirements remained about the same; however, there were instances of upgrading, but downgrading rarely occurred. A companion document, published in 1969, is available as VT 008 863. (CH)