handy computer

基本解释

These things are handy for computer maintenance and for day-to-day life, so it’s worth getting one no matter what.
这些东西对电脑维修和日常生活都方便，所以不管如何值得买一个。
Choose handy computer PDA as processing flat, to realize the computing of the index, the storage and display of data.
选用PDA掌上电脑作处理平台，实现指标计算、数据存储与显示。
Talking to Friends: If you don’t have a computer handy, then don’t forget about the analog approach - call a friend or tell him or her over coffee about a great blog post you read.
与朋友谈论：如果你手头没有电脑，那就不要忘了使用模拟的方法——打电话或者喝咖啡的时候告诉他/她你看到的好的文章。

Since we're hard pressed to think of a scenario where having a calculator and card reader on hand would be essential to your well being -- especially considering that handy "Calculator" app that comes pre-loaded on most every computer these days -- it's difficult to postulate when this awkward combination of gadgets would actually come in handy.
ENGADGET: Uni-Creation's All-in-1 memory card reading calculator