当年，乔布斯曾直接否定了「触控 MacBook」的可能性，他认为触控技术不太适合用在笔记本屏幕这种垂直放置的触控界面，用户需要一直举起手臂使用，很快就会疲劳。
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，详情可参考wps下载
我们说的 “代际差”，不只是���一指标的差距，更关键是有没有切换整套做事思路，迭代速度有没有质变。我们现在追求的是不仅跑得快，加速度还在持续变大，因为我们在构建底层通用能力体系，这才是真正的代际差，而非单点指标领先。。业内人士推荐PDF资料作为进阶阅读
Full-sized keyboards, or 100 percent, include a function row at the top and a complete numpad with arrow keys on the right side, along with all of the rest of the alphanumeric keys you’d expect on a standard QWERTY layout. Tenkeyless, or 80 percent, removes the number pad but keeps the arrow keys and the function row, reducing the overall width measurement of the board by a decent amount. Compact keyboards keep things ultra simple by including only the alphanumeric keys and modifiers like Alt, Shift, Ctrl and others and they come in different sizes like 60 percent, 65 percent and more. These are the most popular sizes out there, but you can find plenty of other designs that include different mixes of keys along with the standard letters and numbers all should have.。PDF资料是该领域的重要参考