1. A method of selecting desired data sets from a plurality of data sets that are categorized and sequentially ordered into a plurality of lists, comprising the steps of: continuously displaying a plurality of categorical identifiers at respective coordinates on a display medium, at least some of said categorical identifiers being displayed simultaneously during at least a portion of the displaying of said categorical identifiers, and each of said categorical identifiers corresponding to at least one of said plurality of lists; providing two control inputs, one as a scrolling control and a second as a select control; sequentially displaying, one at a time, data sets in one list corresponding to a respective one of said displayed categorical identifiers upon sequential application of said scrolling control; selecting a desired data set that is currently displayed and selecting another of said displayed categorical identifiers corresponding to another one of said plurality of lists, both upon application of said select control; sequentially displaying, one at a time, sequential data sets of respective additional lists next to said another displayed categorical identifier and any desired additional displayed categorical identifiers, upon application of said scrolling control; and selecting respective data sets of said another displayed categorical identifier and each of said desired additional displayed categorical identifiers, and moving to respective ones of each of said desired additional displayed categorical identifiers, both upon application of said select control.
1. A method of selecting desired data sets from a plurality of data sets that are categorized and sequentially ordered into a plurality of lists, comprising the steps of: continuously displaying a plurality of categorical identifiers at respective coordinates on a display medium, at least some of said categorical identifiers being displayed simultaneously during at least a portion of the displaying of said categorical identifiers, and each of said categorical identifiers corresponding to at least one of said plurality of lists; providing two control inputs, one as a scrolling control and a second as a select control; sequentially displaying, one at a time, data sets in one list corresponding to a respective one of said displayed categorical identifiers upon sequential application of said scrolling control; selecting a desired data set that is currently displayed and selecting another of said displayed categorical identifiers corresponding to another one of said plurality of lists, both upon application of said select control; sequentially displaying, one at a time, sequential data sets of respective additional lists next to said another displayed categorical identifier and any desired additional displayed categorical identifiers, upon application of said scrolling control; and selecting respective data sets of said another displayed categorical identifier and each of said desired additional displayed categorical identifiers, and moving to respective ones of each of said desired additional displayed categorical identifiers, both upon application of said select control. 31. A method of selecting desired data sets as claimed in claim 1, wherein said categorical identifiers and each prior-selected data set are continuously displayed simultaneously during the selection of each subsequent data set.