applicationsoftware architecture computer computercommunicationnetworks computercommunicationsystems computernetworkarchitectures computerprogramming computerscience computersystemperformance databasemanagement informationstorageandretrieval informationtheory operatingsystems operatingsystems(computers) processorarchitectures programmingtechniques softwareengineering specialpurposeandapplication-basedsystems systemperformanceandevaluation theoryofcomputation