▁em ulated ▁environment ▁constit utes ▁an ▁alternative ▁solution ▁en abling ▁the ▁use ▁of ▁modern ▁x 8 6 ▁hardware ▁or ▁virtual ized ▁standard ▁x 8 6 ▁servers , ▁without ▁having ▁to ▁abandon ▁the ▁fully ▁function ing ▁operating ▁system ▁and ▁the ▁application ▁environment . ▁ ▁The ▁virtual ization ▁solutions ▁being ▁sold ▁under ▁the ▁product ▁names ▁Char on - P DP , ▁Char on - AX P , ▁Char on - V AX , ▁Char on - HP A ▁and ▁Char on - SS P ▁consist ▁of ▁a ▁combination ▁of ▁virtual ▁machine ▁and ▁hardware ▁abstra ction ▁layer . ▁They ▁run ▁on ▁Microsoft ▁Windows , ▁Linux ▁or ▁VM ware ▁ES X i ▁and ▁provide ▁a ▁virtual ▁P DP - 1 1 , ▁V AX , ▁Al pha Server , ▁H P ▁ 3 0 0 0 , ▁and ▁SP AR C ▁environment . ▁In ▁a ▁first ▁step , ▁a ▁configuration ▁matching ▁the ▁old ▁system ▁is ▁created ▁on ▁the ▁host ▁platform , ▁thereby ▁creating ▁an ▁em ulated ▁guest ▁system ▁behav ing ▁like ▁the ▁old ▁physical ▁server . ▁In ▁the ▁second ▁step , ▁the ▁operating ▁system ▁and ▁- ▁as ▁required ▁– ▁associated ▁applications ▁and ▁application ▁data , ▁are ▁moved ▁from ▁the ▁real ▁hardware ▁to ▁the ▁virtual ▁machine . ▁Depending ▁on ▁the ▁operating ▁system , ▁the ▁data ▁is ▁copied ▁as ▁physical ▁image ▁or ▁file ▁system ▁backup . ▁Such ▁migr ations ▁are ▁possible ▁without ▁source ▁code ▁changes ▁or ▁operating ▁system ▁up gr ades . ▁ ▁In ▁ 2 0 1 0 , ▁the ▁IT ▁market ▁research ▁inst itute ▁G art ner