varian boards

Hi; I have the following circuit boards for a varian data Machines, and would like to know what each board is -- and what it does -- and what computer they go in (model) like a 620 or what ???? DM 103 -- CORE bOARD i HAVE 2 DM 104 5 DM 106 2 DM 108 3 DM 109 1 DM 111 1 DM 112 1 DM 113 1 DM 119 9 DM 120 1 DM 121 1 DM 122 1 DM 123 1 DM 124 2 DM 126 2 Thanks Marty Geist, my email address is --- geist1122(a)juno.com ________________________________________________________________ Juno Platinum $9.95. Juno SpeedBand $14.95. Sign up for Juno Today at http://www.juno.com! Look for special offers at Best Buy stores.