produced by boston-based idg world expo, macworld/iworld is a trade-show with conference tracks dedicated to the apple macintosh platform. it is held annually in the united states during january. originally macworld expo and then macworld conference & exposition, the gathering dates back to 1985. macworld is the most widely read macintosh magazine in north america and a trademark of mac publishing, a wholly owned subsidiary of international data group. idg world expo is also a subsidiary. the conference tracks are taught by leaders in their fields and require large admission fees. they last for a few more days than the expo, which runs generally three or four days. attendees can visit the exhibits, set up by hardware manufacturers and software publishers that support the macintosh platform. on december 18, 2008, apple announced that the 2009 macworld conference & expo would be the last in which the company participates. == history == thumb|steve jobs delivering the 2005 keynote address. thumb|attendees at macworld 2006. the first macworld expo occurred in 1985 in san francisco. the conference itself was created by peggy kilburn, who helped to increase the size and profit of the event during her tenure (1985
Apple_Inc._conferences IDG Recurring_events_established_in_1985