1. A word processor device on which a page of a textual document can be composed and edited, and in which textual data representing said page can be temporarily stored and the stored textual data transferred to and from magnetic tape wound on a tape cassette, the word processor device being a unitary and integral device and comprising: keyboard means integrally formed with said word processor device for manually entering said textual data and for entering word processing commands; information buffer means integrally formed with said word processor device and connected to said keyboard means for temporarily storing one page of said textual data; character display means integrally formed with said word processor device for visually displaying at least a portion of the page of textual data stored in said information buffer means; cassette recorder apparatus integrally formed with said word processor device for transferring said one page of said textual data between said information buffer means and the magnetic tape of said tape cassette, the latter containing any such pages of transferred textual data in sequential order; and signal processing means for controlling the operation of said information buffer means and said cassette recorder apparatus for transferring said page of textual data to said magnetic tape in response to a word processing command entered on said keyboard means, and also transferring a stored page of said textual data from said magnetic tape to said information buffer means in response to another command entered on said keyboard means; said keyboard means, said information buffer means, said cassette recorder apparatus, said signal processing means, and said character display means integrally forming said word processor device being arranged in a size, shape and weight that is personally portable.
1. A word processor device on which a page of a textual document can be composed and edited, and in which textual data representing said page can be temporarily stored and the stored textual data transferred to and from magnetic tape wound on a tape cassette, the word processor device being a unitary and integral device and comprising: keyboard means integrally formed with said word processor device for manually entering said textual data and for entering word processing commands; information buffer means integrally formed with said word processor device and connected to said keyboard means for temporarily storing one page of said textual data; character display means integrally formed with said word processor device for visually displaying at least a portion of the page of textual data stored in said information buffer means; cassette recorder apparatus integrally formed with said word processor device for transferring said one page of said textual data between said information buffer means and the magnetic tape of said tape cassette, the latter containing any such pages of transferred textual data in sequential order; and signal processing means for controlling the operation of said information buffer means and said cassette recorder apparatus for transferring said page of textual data to said magnetic tape in response to a word processing command entered on said keyboard means, and also transferring a stored page of said textual data from said magnetic tape to said information buffer means in response to another command entered on said keyboard means; said keyboard means, said information buffer means, said cassette recorder apparatus, said signal processing means, and said character display means integrally forming said word processor device being arranged in a size, shape and weight that is personally portable. 11. A word processor device according to claim 1, wherein each said block representing a page of a textual document is formed of a header code train representing the beginning of a data record corresponding to a single page of text; an inter recording gap; a data control train; the textual data representing said single page; and a tailer code train representing the end of said data record.