sorry for delay. i'm in a thinking mode. i'm trying to imagine the teacher delivering the lessons to the students (who probably know something about computers). and i've been reading on materials about textbook design. my biggest concern was the "organiziing principle" of the textbook or how i will hold it together (including the teacher's manual and delivery of the lessons by the teacher).
right now, i'm going or leaning towards developing the book around the idea of "the network is the computer" popularized by Sun Microsystems. i will discuss the "personal computer" as part of this overall context. hopefully, this will make the textbook a bit more up-to-date with the times and with the new developments in computers.
i'll send you a draft of the first chapter tomorrow.
by the way, i may have to change the section headings.