Compliments of Radio Shack. This comic also appeared as an insert in several comics in July 1980, including Action Comics (1938 series) #509, New Adventures of Superboy (1980 series) #7, Legion of Super-Heroes (1980 series) #265, and House of Mystery (1951 series) #282.
There are three known printings of this comic. The order of the printings is not explicitly stated, but assumptions are made based on the advertisements. The differences between the three printings are noted in the Indexer Notes below. The cover and indicia are identical in all three printings.
Indicia: SUPERMAN IN "THE COMPUTERS THAT SAVED METROPOLIS" (July 1980) is published by DC COMICS INC., 75 Rockefeller Plaza, New York, New York 10019 for Radio Shack, a division of Tandy Corporation, One Tandy Center, Fort Worth, Texas 76102, U.S.A. Copyright © 1980 DC Comics Inc. All Rights Reserved. Nothing may be reprinted in whole or in part without written permission from the publisher. Superman and Lana Lang are trademarks of and copyrighted by DC Comics Inc.; Radio Shack, The Biggest Name In Little Computers, and TRS-80 are trademarks of Radio Shack, a division of the Tandy Corporation. The stories, characters and incidents mentioned in this magazine are entirely fictional. No actual persons, living or dead, are intended or should be inferred. Printed in U.S.A.
On sale date of March 26, 1980 from the 1980 Library of Congress copyright records (
cocatalog.loc.gov). Registered on April 8, 1980 (registration number TX449786). A second registration was made in the 1984 copyright records indicating a publication date of July 1, 1980. This was registered on October 29, 1984 (registration number TX1444182). The reason for the two different publication dates is unclear.
This issue has variants: