USB Camera

I have an assembled PC, configuration:
a)P-III 500Mhz
b)RAM 64 Mb(Simtronix)
c)ATX Cabinet
d)TV Card (Pixel View)
e)Windows 98

Recently I bought Dual Mode PC Camera, spec:
(i)Image Sensor CMOS 352*288(100k pixels)
(ii)Power Source-2*AAABattery or USB Bus
(iii)Frame Rate-Upto 30 FPS
(iv)Interface -USB
(v)Memory 16MB SDRAM

I have installed all the software from its CD but I don’t know the USB port in my computer ? Please tell me the socket.
My PC is one year old.

Thanks
Arvind Bagla