Refurbished business computers, in particular Windows 8.1 with 4 GB of RAM or higher, work very well and can be found for under $200.
PCs for People offer computer and internet options to low income families
Locations in St. Paul, Mankato, Grand Rapids and Brainerd
Ability Built Computers
Internet Essentials by Comcast
Accepted Computer Operating Systems: Windows 10, Windows 8, Windows 7 and Mac OS X El Capitan (10.11) or higher.
Although some assignments and tasks can be accomplished on other types of devices, such as your smartphone, iPads, tablets, Kindles and Chromebooks, you will not be able to do most of your MNOHS course work on them. You need regular access to a Windows or Mac computer to fully participate in your MNOHS classes.
Click for more information: Detailed computer requirements.
Other Related Question
Why can't I do MNOHS on my phone?