The phrase "older machines" refers to machines or devices that were built or made a long time ago and are not as new or modern as the ones currently available. Full definition
The recommended specs are far lower, so the game should run properly even on older machines. (wccftech.com)
Dress in old machine washable clothing and wear disposable gloves. (onpets.com)
However, when using older machines you will need to check your active directory and group policies to ensure they are efficiently configured. (educationbusinessuk.net)