|SATA vs IDE: http://drivefish.com/blog/wp-conten...|
Top picture is IDE, Integrated Device Electronics technology; or EIDE or PATA (Parallel ATA [Advanced Technology Attachment]) depending on the version).
Bottom pic is SATA (Serial ATA).
See Gateway USER Guides Tab here: http://support.gateway.com/us/en/pr...
To get into the BIOS, you hit the F1 Key at system startup (When you see the gateway Splach screen or logo usually) , and BEFORE Windows loads in order to get into the BIOS (Basic Input Output System). Then scroll through the BIOS menus there with your arrow keys, find your DVD, CD perhipherals, and see if they're there. Be careful not make any changes to settings.
MOOOOooove! OH and you're welcome!