PC Magazine (or PC Mag) is a computer magazine published biweekly (except in January and July) both in print and online. The magazine is published by Ziff-Davis Publishing Holdings Inc. The first edition was released in January 1982 as a monthly called PC (the "Magazine" was not added to the logo until the first major redesign in January 1986). The magazine moved to biweekly publication in 1983 after a single monthly issue swelled to more than 800 pages.