Ubuntu is a free and open-source operating system. It is rather easy-to use and secure with many variants for different purposes like server, video editing, education, or general usage on poorer hardware. It is good also for learning Finnish. It is easy to install but sometimes it is quicker and easier to just clone an image that has been prepared before.
If you have a spare computer available you can try a live DVD to see how Ubuntu works (without making changes to the hard disk drive) or you can install it on the hard disk (or a usb flash drive). There is however no need to install Linux (the traditional way using an .iso image) since you can use Clonezilla software and restore a backup from an image. Restoring a cloned image will replace the contents of the hard drive.
On November I published the first two images (or backups) of Ubuntu Linux installations that are aimed at people who want to learn Finnish. The first was Xubuntu and the second Lubuntu. They include links and offline learning material. You can read about Clonezilla and my previous Ubuntu customization at http://aku-opettaa.blogspot.fi/2015/11/kloonaa-valmis-linux-asennus.html (it is in Finnish)
Cloning (restoring) this Ubuntu needs a hard drive of about 60 gigabytes in capacity (or bigger). The image can be applied to most pcs with at least one gigabyte of memory, both laptops and desktops. The image size is ten gigabytes but since the source disk was 56 GiB the target disk also needs to be as big or bigger.
A short guide of using Clonezilla and acquiring this image "Ubuntu backup for Finnish learning"
First download the image files from OneDrive - totalling 22 files and 5,5 GB. This time they are not zipped. You can use the mouse and drag and drop a box around the files and right-click and select "Download". You can first create a folder with the name 'clone'. Preferably save the image files on a 8 GB or 16 GB usb flash drive or an external hard disk. Note that it can take several hours to download all the files. Check that the total size will be 5'840'622'856 bytes. I'll include an md5 checksum or something later.
Secondly download Clonezilla (about 180 MB). Choose i686-pae and iso from the dropdown menus at http://clonezilla.org/downloads/download.php?branch=stable
and download Clonezilla. Burn it on a cd or use the usb boot option explained at http://clonezilla.org/liveusb.php
If your computer won't boot up with this version of Clonezilla it cannot handle this third version of Ubuntu Finnish learning. In that case you can download i586 Clonezilla and use the second version at http://koti.kapsi.fi/~akutalikka/s2/linux-images-l/ - probably the fourth version will be a simpler one that can run better on very old hardware.