[Coco] Color Computer Mouse Question

[Mark J. Blair]

On Oct 27, 2013, at 22:01 , nickma at optusnet.com.au wrote:
> Actually, I think all mice have a steel ball. It's just that most are
> rubber coated.

I think that was true until the optical ones with no balls took over.

> But protection from what?

It'd protect them from rust, but I think it was mostly for improved traction. As I recall, the earliest mice I encountered for PCs had naked steel balls, but rubber coated balls quickly became the standard.

-- 
Mark J. Blair, NF6X <nf6x at nf6x.net>
http://www.nf6x.net/