The Calculate project features several distributions, optimized for two distinct groups of people: home users as well as small and medium businesses that prefer open-source to proprietary solutions. Calculate Linux Desktop is a complementary solution for the Server and together they provide important features like roaming profiles and centralized software deployment. Calculate Directory Server can successfully replace a Windows NT ® domain controller (Windows clients supported) and provides additional services that can be deployed in a matter of minutes: LDAP, Mail, Jabber and many others. Calculate Linux is based on Gentoo that is well known for its stability and great performance on a broad range of hardware: from Pentium Pro to modern CPUs.