23. The apparatus of claim 22 wherein S is the maximum number of characters per line of text and T is the maximum number of lines per page of a document.
23. The apparatus of claim 22 wherein S is the maximum number of characters per line of text and T is the maximum number of lines per page of a document. 27. The apparatus of claim 23 in which said control means writes said page refresh RAM with a different multi-bit sequence for each different formatted multi-character array to be displayed.