在主流计算中，有一件事没有改变，那就是分级文件系统。在我看来，这是一种耻辱，因为在20世纪80年代末和90年代，一些工作已经完成，以设计更适合现代面向对象操作系统的新型文件系统——那些从头开始就是面向对象的操作系统。

OO操作系统倾向于具有可扩展且灵活的平面对象存储。我认为EROS项目就是围绕这个想法建立的;PenPoint操作系统是20世纪90年代的面向对象操作系统;Amazon S3当然是当代的平面对象存储。

在面向对象的平面文件系统中，至少有两个想法是我特别喜欢的:

The entire disk was essentially swap space. Objects exist in memory, get paged out when they are not needed, and brought back in when they are. There's no need for a hierarchical filesystem that's separate from virtual memory. Programs are "always running," in a sense. A flat file/object store allows content to be indexed and searched, rather than forcing the user to decide -- ahead of time -- where the content will live in relation to other content and what its name shall be. A hierarchical system could be built on top of the flat storage, but it's not required.

正如Alan Cooper在他的书《About Face》中所述，分层文件系统是一个拼凑物，是为20世纪60年代和70年代内存和磁盘存储有限的计算机设计的。可悲的是，Windows和Unix的流行保证了分层文件系统的主导地位。

一些回答提到了量子计算机，好像它们还在遥远的未来，但我不敢苟同。

There were vague mentions of possibility of quantum computers in 1970s and 1980s (see timeline on Wikipedia), however the first "working" 3-qubit NMR quantum computer was built in 1998. The field is still in infancy, and almost all progress is still theoretical and confined to academia, but in 2007 company called D-Wave Systems presented a prototype of a working 16-qubit, and later during the year 28-qubit adiabatic quantum computer. Their effort is notable since they claim that their technology is commercially viable and scalable. As of 2010, they have 7 rigs, current generation of their chips has 128 qubits. They seem to have partnered with Google to find interesting problems to test their hardware on.

我推荐这段简短的24分钟视频和维基百科上关于D-Wave的文章作为快速概述，在这个由D-Wave创始人和首席财务官撰写的博客上有更多的资源。

受保护的内存。在保护内存之前，如果你的程序犯了错误，你可以在任何地方开始执行代码——实际上总是挂起整个机器。没错，重启时间到了!

硬件成本低。我的第一台电脑在1978年花了500美元——这在当时是一笔巨款。降低成本让每个人的办公桌上都有了电脑。

不确定1980年的情况，但人工智能社区几十年来一直是一个创意生成器，他们仍然在做。

我认为，在1980年，如果你在使用一台电脑，你要么是在赚钱，要么就是一个极客……那么发生了什么变化呢?

Printers and consumer-level desktop publishing. Meant you didn't need a printing press to make high-volume, high-quality printed material. That was big - of course, nowadays we completely take it for granted, and mostly we don't even bother with the printing part because everyone's online anyway. Colour. Seriously. Colour screens made a huge difference to non-geeks' perception of games & applications. Suddenly games seemed less like hard work and more like watching TV, which opened the doors for Sega, Nintendo, Atari et al to bring consumer gaming into the home. Media compression (MP3s and video files). And a whole bunch of things - like TiVO and iPods - that we don't really think of as computers any more because they're so ubiquitous and so user-friendly. But they are.

我认为，这里的共同点是曾经不可能的事情(制作打印文档;准确再现彩色图像;实时向世界各地发送消息;分发音频和视频材料)，当时因为设备和物流成本昂贵，现在是消费者水平。那么，大公司现在在做什么过去是不可能的，但如果我们能想出如何做小而便宜的事情，可能会很酷?

任何涉及物理运输的东西都是有趣的。视频会议(目前)还没有取代真实的会议，但如果技术合适，它仍有可能取代真实的会议。一些休闲旅行可以被全感官沉浸式环境所取代——家庭影院就是一个微不足道的例子;另一个是位于Soho区一栋写字楼内的“虚拟高尔夫球场”，在这里，你可以在模拟球场上打18洞真正的高尔夫球。

不过，对我来说，下一个真正重要的事情将是制造。做的事情。勺子，吉他，椅子，衣服，汽车，瓷砖什么的。这些仍然依赖于生产和分销基础设施。我再也不用去商店买电影或专辑了——什么时候我就不用去商店买衣服和厨具了?

Sure, there are interesting developments going on with OLED displays and GPS and mobile broadband and IoC containers and scripting and "the cloud" - but it's all still just new-fangled ways of putting pictures on a screen. I can print my own photos and write my own web pages, but I want to be able to fabricate a linen basket that fits exactly into that nook beside my desk, and a mounting bracket for sticking my guitar FX unit to my desk, and something for clipping my cellphone to my bike handlebars.

与编程无关?不…但在1980年，声音制作也不是。或者视频分发。或者给赞比亚的亲戚发信息。大处着眼，伙计们……：）

MPI和PVM并行化。