Need help with Mac Classic

My partner's classroom received a Mac Classic, donated by a parent. I've never done anything with Macs, so I need some help with this. - Can someone tell me the standard configuration(s) for a Mac Classic? - What options are available for it? - Where can I get a mouse (and other hardware) - Do I need a mouse? Can I get along without one? - Where can I get an operating system for it (MacOS?) Any and all help appreciated... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry(a)zk3.dec.com | | Unix Support Engineering Group | (home): mbg(a)world.std.com | | Digital Equipment Corporation | | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+