Toshiba Corp, already in the IBM Corp orbit with a joint venture on active matrix displays and a pending pact on Flash memory, plus hints of a multimedia alliance, has now been drawn into the IBM-Apple Computer Inc alliance following the announcement that it and Apple have an agreement to develop multimedia technology, combining Apple software skills with Toshiba’s expertise in semiconductors and consumer electronics. The two will jointly license, develop and produce Personal Digital Assistants with the first from the alliance, set for mid-1993, will use CD-ROMs storing text, audio and graphics. Sharp Corp has already signed to make and market the first Apple Personal Digital Assistant, Newton, and Sony Corp makes Apple’s smallest PowerBook. Toshiba and Apple will license software from Kaleida Inc, the IBM-Apple multimedia firm,which yesterday named Nathaniel Goldhaber as chief executive: he is a principal in Cole Gilburne Goldhaber & Ariyoshi Management Inc, a high tech venture capital firm.