WindowsLinuxMACOSFreeBsdSolarisItem AItem B
Computer Architectures supportedx86, x86-64x86, x86-64, PowerPC, SPARC, Alpha, others68k, PowerPCx86, x86-64, PC98, SPARC, othersx86, x86-64, SPARC
Gui default is onYes- depends on distributionYesNoYes
Target system typeWorkstation, personal computer, media center, Tablet PC, embeddedDesktop/Sever Depends on distributionWorkstation, personal computerServer, workstation, NAS, embeddedServer, workstation
File systems supportedNTFS, FAT exFAT ISO 9660, UDF; 3rd-party drivers support ext2, ext3, ReiserFS,[t 10] HFS+, FATX, and HFS (with third party driver)ext2, ext3, ext4, ReiserFS, FAT, ISO 9660, UDF, NFS, and othersHFS+, HFS, MFS (Mac OS 8.0 and before), AFP, ISO 9660, FAT(System 7 and later), UDFUFS2, ext2, ext3, FAT, ISO 9660, UDF, NFS, ReiserFS (read only), XFS (experimental), ZFS, othersUFS, ZFS, ext2, FAT, ISO 9660, UDF, NFS, QFS, some others
User friendly for lay usersYes very user friendly- depends on distributionYesNoNo
Integrated firewallWindows Firewallchroot, capability-based security,[s 5] seccomp, SELinuxApplication FirewallIPFW2, IPFilter, PFIPFilter
Encrypted file systemsYesYesYesYesYes
Security threatsHugenegligiblenegligiblenegligiblenegligible
Shell terminalCMDBash shell powerful shell with alot of featuresBASHBashBASH
Kernel typeHybridMonolithic with modulesMonolithic with modulesMonolithic with modulesMonolithic with modules, user space file systems
width1 in