No, the iMac has built in speakers on the bottom of the screen and a built in microphone.
Definately
An iMac G5 can only run Mac OS X 10.5 (Leopard) it cannot run 10.6 (Snow Leopard) or 10.7 (Lion). So the answer must be 'No'.
MS Picture It is not available for Mac OS Leopard. To use it on an iMac you will need to install and run the Windows operating system.
You can run Tiger, Leopard, and Snow Leopard. You cannot run Lion.
Buy the Leopard one. It will save trouble.
There is a combined headphone and optical digital audio output (minijack) socket. On the current iMacs it is the first socket on the back.
No. The System Restore discs for a new iMac are specific to that model only.
iMac g3's cannot install Leopard 10.5 The hishest it can run is Tiger 10.4
If a G4 iMac is working but starting up without the chime it may have been shutdown with the sound muted or there may be headphones plugged in. If it is not starting up at all then it will need repairing.
Yes, as long as the people you want to see and talk to are running FaceTime on their Mac.
If she does not have a web camera you cannot see her. You also cannot see her if the camera is not turned on or plugged in.
Mac OS X 10.6 (Snow Leopard) only works with Macs with an Intel processor. The last version that will work with a G5 Mac is 10.5 (Leopard).