First off let me say thank you for your interest & replies, various other forums & sites have tried over the past few weeks have not been so helpful or knowledgable in their replies, when or if they do.
No I am afraid this is not a MS or other makes problem as Apple tells you you can use several controllers with their Apple TV/ Mac & OS & they themselves refer users to download the 360 app I mention to enable MS/Sony & other controllers which you can purchase on their site to work with various Apple devices (my iPhone & iPad still recognise my contollers). I have emailed the author of this app, which he wrote as a service to fellow users, his name is Drew Mills & I share his answer with you.
"Apple now officially supports a number of common controllers on the platform.
Xbox: Connect an Xbox wireless game controller to your Apple device - Apple Support
PlayStation: Connect a PlayStation wireless game controller to your Apple device - Apple Support
The trick with this is that these controllers show up as a totally different interface to what 360Controller did. So depending on what you're using your controller for, some things might not pick it up. In fact, I don't think anything will be able to support older games, now that 360Controller no longer works. It is an unfortunate turn of events."
So I bought a new xbox controller as above & as I described it does not work, I have also spoken to another Mac user whose Sony Controller as mentioned above has stopped working with his Mac.
Unfortunately this is not only older games as suggested by Drew but includes all my games on Steam & the latest Farm & truck sims & games still in Early release. It is no use Apple telling people to download Drew's app, it no longer works with their OS as stated.
I cannot credit that I am the only one (sitting in South Africa) to be raising this issue, although I know Mac is a great machine but not the most popular for gaming.
I accept your point regarding upgrading programmes but have learnt to be wary over the years especially when it comes to OS (Win or Mac) Some convert expensive (very here) hardware & purchased software to junk, also bandwidth is expensive & slow where I live so large downloads have to be considered.
Anyway thanks again & if you hear of any new info that will help please pass it on & I will reciprocate.
Regards, Terry.
P.S. Whoops, another problem we have, our power goes off for up to 10 to 12 hours a day some days & I have just now gone on to battery back up. so must close down in the dark.