I have written a number of times about Chromebooks, the inexpensive and very useful laptop computers. (See https://goo.gl/AAaOZr for a list of my past articles about Chromebooks.)
I have owned a Chromebook for three years or so and use it often. It is very secure, boots up quickly, and it only cost about $200. Best of all, its software is always up to date, the same as the newest Chromebooks. The newer Chromebooks may be a bit lighter and have faster processors, but my older system’s software is identical to what is installed in the brand-new Chromebooks.
Unlike Microsoft and Apple products, Chromebooks automatically update the operating system whenever a new version is released. Most releases are small, incremental improvements and are released every few weeks. There is never a huge download like Windows 10 or the Macintosh OS X Yosemite that change lots of things and sometimes break installed programs.