The 4100 also incorporates the firm's Telewriter
II multi-color graphics tablet, which allows participants to interact through real-time graphics and drawings.
Schwartz and Platt brought in Winnie Holzman, telewriter
of "My So-Called Life," to do the book.
Classes in which graphics have been sent prior to class or do not require graphics beyond the ability to print and/or draw interactively, use Optel's Telewriter
hardware and software system on a one-line option for more efficient class delivery.