Prior to digital distribution, hobbyist programmers typically relied on mail order to distribute their product. They would place ads in local papers or hobbyist computer magazines such as "Creative Computing" and "Byte" and, once payment was received, fulfil orders by hand, making copies of their game to cassette tape, floppy disc, or CD-ROM along with documentation. Others would provide copies to their local computer store to sell. In the United Kingdom, where personal computer game development took off in the early 1980s, a market developed for game distributors that handled the copying and distribution of games for these hobbyist programmers.