*** Base Models through the years ***

 September 1993 - $4995
100MHz R4000PC 
8-bit XL
No disk
16M bytes of RAM.
15-inch color display
Indycam, keyboard, mouse
Irix 5.0

 April 1994 - $4995
100MHz R4600 Indy system
8-bit XL
No disk
16MB of main memory
15-inch 1,024-by-768 resolution color monitor
Indycam, keyboard, mouse
Irix 5.2 

 January 1996 - GBP 5,450
133MHz R4600 
8-bit graphics XL
500MB disk
32MB of memory 
17" monitor
Indycam, keyboard, mouse