Co. that developed the floppy disk

• Tech company that sold off its PC product line in 2005
• PC introducer of 1981
• Apple alternative
• Co. in the Dow since 1979
• Company that developed alphaWorks
• “Smarter Planet” company
• Venerable tech giant
• DJIA stock
• Its logo has letters with horizontal stripes through them

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
also (in early use) I.B.M. , initialism (acronym) attested by 1921 from International Business Machines Co., name in use from 1918.