The iPad Air, the middle child in Apple’s tablet lineup, has been upgraded to the M4 chip with increased RAM and… Well, there’s not a whole lot else if I’m being honest. At the very least, the new iPad Air M4 models remain at the same price as the iPad Air M3, with the 11-inch version starting at $599 and the 13-inch at $799. I would give Apple more credit if it had increased the starting storage or added literally anything else.
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。关于这个话题，爱思助手下载最新版本提供了深入分析
2月18日，北京大学电子学院、鹏城实验室、上海科技大学、国家信息光电子创新中心等研究团队在《自然》（Nature）发表论文《集成光子学赋能超宽带光纤-无线通信》（Integrated photonics enabling ultra-wideband fibre–wireless communication），报告他们采用集成光学方案，实现了250GHz以上超大带宽的光电/电光转换器件，薄膜铌酸锂调制器（TFLNMZM）和磷化铟探测器（InP UTC-PD）带宽均创纪录；同时，基于上述器件实现了“光纤-无线一体化融合”系统演示，光纤通信实现破纪录的单通道256Gbaud（512Gbps）信号传输，太赫兹无线通信实现破纪录的单通道400Gbps信号传输，并完成了86路8K高清实时视频的无线传输演示。
这还真应了他戴着口罩在直播里说的那句：“从初中开始，我就想别人见到我妈的时候，都知道他儿子是谁谁谁。”