"A friend my gave me a iMac the one with the see thought back its red see thought he got it from a co worker who was gonna trash it and he know I collected computers.
I am new at this I got a MAC keyborad and mouse so I am ok on that it is very very slow and I have a few questions"
That's one of the "original design" iMacs. Not the very first ones, but one of the later revisions, when they started offering them in different colors.
I _think_ this has a (PowerPC) g3 CPU in it. You CANNOT run the modern Apple software on it, because Apple now uses Intel CPUs and the software won't run. But you CAN find and run older Apple software.
It looks to me like it has firewire ports on it, too.
"1) can I put more ram in it and does it have be Mac Ram?"
The RAM is upgradeable, but first you have to determine how much is in it already. You can do this by going to the first selection under the "Apple" menu, and choosing "About This Mac". It should tell you which iMac you have, and also give you the processor speed.
Once you have that info, go here:
http://www.datamemorysystems.com/G3_iMac_Memory.asp
Pick the selection that compares to the speed you saw in the "About this Mac" menu.
BTW, I've order from Data Memory Systems in the past, their service is quick, prices right, and never had any problems with their products.
I'm not _real_ familiar with that series of iMacs, but it looks like they "max out" around 1gig of RAM.
"2) were can I find original keyboard &mouse(I like having original stuff if I can)"
Actually, the original keyboards/mice with the "pod" iMacs were TERRIBLE (shouting intentional). Look for them if you must, but you're probably far better off with the mouse and keyboard shown in your pics.
"3) how I get the wireless to work"
Did they even _have_ wireless installed in the early iMacs? I think all you had for network connection was the Ethernet port (shown in the pic). You can check that by going to the "About This Mac" under the Apple menu, and (after the introduction window opens) clicking "More info". Alternate method: look for "Apple System Profiler" in either the Applications or Utilities folders.
Then see if it says anything about wireless. Even if it has some wireless connectivity, whatever was built in at the time will be very slow.
If you really want wireless, you _might_ be able to get a 3rd party "USB/wifi" dongle that plugs into a USB port and it _might_ work (no promises because of the age of the machine).
Best solution: just use wired Ethernet.
"4) I read online it should have a dvdrom but its cdrom did I read wrong?"
Again, you can check using Apple System Profiler. It may indeed be only a CD drive without DVD capabilities.
Having said that, you might be able to find a DVD/CD drive (either "bare" or in an enclosure) relatively cheap. I suggest you get one with a firewire400 port. Then connect it to one of the firewire ports and you won't use up one of the 2 USB ports.
Hope I got all the above info right -- I'm sure others will jump in to correct if not....