Windows Office is much better for many things (like legal briefs) than OpenOffice and other substitute programs. These are just a few, and the list is growing every day as more apps convert to the new HTML5 coding.
Using a Chromebook Without an Internet Connection Internet access is always desirable but it is NOT required for Chromebooks: Thankful for Apple refurbished => (noticed some 5K 27" iMac's that work well for Logos 6) Thankful can easily copy OS X from one Mac model to another. The underlying System, Darwin, is free open source Software. However, unlike other commercial operating systems like Windows and QNX, there is no 'activation' or other DRM built in.
The Apple license is quite restrictive, making it illegal to copy, modify, redistribute, or install on non-Apple hardware. New versions of OS X are free, but in other to upgrade you need a version of OS X above Snow Leopard (10.6) and proper hardware. All Apple hardware comes with a free OSX license. It is also legal to modify Linux and Ubuntu for your own purpose and redistribution, as long as you comply with the GPL license. You may make copies of the Ubuntu operating system at no charge, and you may install Ubuntu to any compatible machine.