whip is to hit. ( With a hammer? 😉 )
wipe is to clean.
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Try holding down the option key then power on. This brings up the startup manager. Click on your cd/dvd. Click on right arrow key.
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The exact model of iMac would be helpful.
Query by serial number
Apple's warrenty database will identify the type of Mac you have.
https://selfsolve.apple.com/agreementWarrantyDynamic.do
These sites provide more information, but lack security.
"A serial number is a unique, identifying number or group of numbers and letters assigned to an individual piece of hardware or software. It's used for various things depending on the product / brand but what is your Mac's serial number for and more importantly... what is it hiding and what can it do for you ?"
http://www.appleserialnumberinfo.com/Desktop/index.php
Robert