Short answers, pulled from the story.
Byte magazine was founded by Wayne Green and Carl Helmers, with its first issue published in September 1975. Green, editor of amateur radio magazine 73, and Helmers, who had been running a small computer hobby publication called ECS magazine with 400 subscribers, announced their joint venture in May 1975. The magazine was incorporated as Green Publishing by Virginia Londner Green.
McGraw-Hill purchased Byte magazine in April 1979 from Virginia Williamson (formerly Virginia Londner Green). At the time of the sale, Byte had a paid circulation of 156,000 readers. McGraw-Hill later sold its publishing arm to CMP Media in May 1998, which ended print publication with the July 1998 issue.
By 1982, Byte's average issue ran 543 pages, and paid advertising pages grew by more than 1,000 that year. In 1983, Byte earned $9 million from revenue of $36.6 million, twice the industry average profit margin. Its circulation reached 420,000, third-highest among all computer magazines. The October 1984 issue alone carried around 300 pages of advertisements.
Byte's print publication ended because of declining advertising revenue through the 1990s. When CMP Media acquired the magazine in May 1998, the new owners chose to cease print publication with the July 1998 issue rather than revitalize it, laying off almost all staff and shutting down Byte's product-testing lab.
Byte relaunched as an online-only publication in 1999 after its print edition closed, drawing 600,000 page views per month on its website. From 2002 it required a subscription. The site closed in 2009, was relaunched again on the 11th of July 2011 by UBM TechWeb, and shut down permanently in 2013.
Ciarcia's Circuit Cellar was a long-running column by electronic engineer Steve Ciarcia that described small hardware projects for modifying or connecting equipment to computers. It ran continuously from the first issue through the December 1988 issue, and was later spun off into its own standalone magazine called Circuit Cellar, focused on embedded computer applications.