Historical clue formulations

• Starting point on a computer — 2021-04-18
• Top-level list — 2019-03-14
• First set of choices — 2017-05-12
• Starting point of a phone tree — 2012-11-09
• Top-level commands, collectively — 2010-11-05
• Automated answering machine base — 2005-10-15
• Primary computer list — 2005-05-24
• Computer offering — 1997-02-16