first wave

Personal income rose slightly in June after surging in May when the first wave of stimulus checks arrived, the government reported Monday.

This year, America has reached a milestone in demography - the first wave of baby boomers has turned 62, the age at which workers become eligible for retirement Social Security benefits.

Intel will roll out its first wave of mainstream 45-nanometer "Montevina" Centrino 2 mobile processors by June then follow this up in September with additional chips including the first quad-core mobile processor.