I know computers and other eortcelnics continue to keep track of time when powered off with a small battery. What I want to know is what does a computer do to keep track of 19:30:48 What does it use as a reference for a second, or an hour? What I'm trying to ask is, how does a computer know when one second has passed?My question was how does it know a nanosecond has passed. I understand a computer lacks a concept of time or consciousness. All I wanted to know was how a computer knows that time has passed. In a mechanical clock, it's designed so that the second hand moves at a rate of one second, and that turns gears so the minute hand moves, then that turns the hour hand. What is the electronic equivalent of this?

リロード   新規 編集 凍結 差分 添付 複製 改名   トップ 一覧 検索 最終更新 バックアップ   ヘルプ   最終更新のRSS
Last-modified: Mon, 26 May 2014 19:30:48 JST (2710d)