The Psion Series 5 is a personal digital assistant (PDA) from Psion. It came in two main variants, the Series 5 (launched in 1997) and the Series 5mx (1999), the latter having a faster processor, clearer liquid crystal display (LCD), and updated software.

Formed in 1980, Psion first achieved success as a consumer hardware company that developed the Psion Organiser and a wide range of more sophisticated clamshell personal digital assistants (PDAs). Psion either closed or disposed of all its prior operations and then focused on rugged mobile computing systems.

The Psion Series 3 was the first truly useful personal digital assistant (PDA). Its purpose was to replace the old-fashioned paper agenda and Rolodex , but it could do much more. Besides the agenda with multiple views, it featured a database , a word processor , a spreadsheet with charts, world times, and more.

Psion Series 5 Handheld Computer With Case. Get the best deals on Psion PDAs when you shop the largest online selection at eBay.com. Free shipping on many items | Browse your favorite …

Psion是 伦敦证券交易所 的一家上市公司。 该公司总部位于伦敦，在欧洲、北美、亚洲、拉丁美洲和中东设有地区总部。 其中著名的手机智能系统 Symbian 是Psion公司制作。 2012年被美国摩托罗拉系统以2亿美元收购。 EPOC是Psion Software推出的操作系统，专门用于移动信息设备，包括掌上电脑."EPOC”这个词起源于世界将会进入“a new epoch of personal convenience”。 EPOC是一个开放的操作系统，一开始的时候EPOC就加上了无线通信和一个外加应用程序的体系，因此 …

Psion的官方总是以“如果你不是真的想要背光的话，它会消耗电池并降低屏幕的清晰度”的观点来安抚客户，直到S3c在美国发售的套装包括背光之后，Psion又会说“啊，那是因为我们不得不这么做，美国人不愿意买没有背光的型号”。

2015年8月2日 · The Psion Series 5 is bulky by 2015 mobile standards; it’s more like a large Nintendo DS than a PalmPilot. But if you think of it as a laptop substitute, it's the most convenient thing I've ever...

2021年6月19日 · Psion 5MX is considered one of the best portable devices with a mechanical keyboard in tech history. Is it really so? Let’s find this out. It is easy to find reviews and YouTube videos about any device nowadays. But when we are talking about things like a mechanical keyboard, no review can replace personal experience.

苹果雄心勃勃的想借助Newton MessagePad重新定义个人数字助理（PDA）市场。 售价高达700美元+电池续航时间短+手写识别软件会出现故障。 之后推出多个型号。 1997年回来的乔布斯砍掉了这个项目。 1993年： 英国电脑公司Amstrad推出PenPad PDA600. 1993年：夏普Zaurus系列PDA开始发售. 1994年： 惠普推出200LX. 1995年： HP公司的iPAQ 4700，支持蓝牙、WiFi，屏幕显示清晰细腻，顶级配置加上良好的扩展性，使这款PDA成为当时众多蜥蜴 (中国玩家 …

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