Convention showcasing computers, say

• Huge event
• Comic-Con, e.g.
• Large public show
• '67 Montreal event
• Montreal event of 1967
• Giant fair
• Origins Game Fair, e.g
• Large fair, for short

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ One dated back to 1994 and another regarded contracts from 1998 that had already been the focus of a Star expos. ▪ The Internet expo , though, is not entirely virtual. ▪ Westech sponsors about 50 expos around the country.

Wikipedia Word definitions in Wikipedia
Expo is a Swedish anti-racist magazine started in 1995 and issued by the non-profit Expo Foundation ( Stiftelsen Expo ). The magazine, issued four times a year, contains investigative journalism focused on nationalist , racist , anti-democratic , anti-semitic ...