Historical clue formulations

• Go-with-you-anywhere computers — 2016-10-17
• Portable computers — 2013-02-12
• Some carry-on items — 2010-08-08
• Flight passengers often work on them — 2008-05-31
• Modern business equipment — 1999-02-05
• They're off during takeoff — 1998-12-05
• Some notebooks — 1996-06-14