Information about the conference and invitation.

expressing concern with no reply to the invitation

expressing regret that Ershov could not come to the conference; confirming the possibility to include his paper in the Proceedings

Information about the conference. Enclosed is the Conference Preliminary Announcement

to the authors on paper submission

Request for sending an abstract of presentation at the Conference on the History of Computing.

Covering letter to the preliminary program of the Conference on History of Computing; enclosed is a reservation form.

supporting the idea and plan to organize an international conference on the history of computing, some sugestions on the subject

"The History of Pre-electronic Aids to Computation" by W.J.Worlton.