At the West Coast Computer Faire in April 1981, for example, Adam Osborne released the first truly portable personal computer.

举例来说，1981 年的西海岸计算机展销会上，亚当·奥斯本发布了第一款真正意义上的便携式个人电脑。

Moreover, technological improvements have made it possible to manufacture memory circuitry that is small enough to fit into the portable personal computers that many of us own and use.

而且，科技发展使得生产小到可以放入今天我们很多人拥有和使用的便携个人电脑里的存储器电路成为可能。