22. A system for selecting desired data sets as claimed in claim 21, further including means for compiling and outputting the records containing other displayed and selected data sets upon receipt of said output data command after display and selection thereof via said scrolling and select control inputs.
23. A system for selecting as claimed in claim 22, further including means for selecting a second list related to said one displayed categorical identifier after selecting the currently displayed data set from said one list and before selecting said another category under the control of said select control input.