Ending the decades-long full employment tradition, IBM Corp on Tuesday formally laid off 1,400 employees at its Kingston and Poughkeepsie, New York mainframe plants, as it continued to notify workers of layoffs at its East Fishkill plant, where 4,000 jobs are to be cut in a combination of layoffs, transfers and voluntary redundancy by May 31. It will also eliminate 500 jobs through attrition and lay-offs at its Armonk headquarters. The cuts were announced in February. Those laid off get up to a year’s salary and a year of medical coverage, counselling for those seeking new careers and up to $2,500 for job retraining.