The Men's 200 metres at the 1984 Summer Olympics in Los Angeles, California had an entrylist of 75 competitors, with ten qualifying heats (75), four quarterfinals (29), and two semi-finals (16) before the final (8) took off on Wednesday August 8, 1984.
Records
These were the standing world and Olympic records (in seconds) prior to the 1984 Summer Olympics.
In the final Carl Lewis set a new Olympic record with 19.80 seconds.
References
Athletics at the 1984 Summer Olympics – Men's 200 metres Wikipedia(Text) CC BY-SA