Operating system

bsd batch job twenex thunk vms shebang ios jail hardware os openbsd portation environment registry rtos nextstep multics os specific embrace penguin dual boot ubuntard snackbar multiuser portable executable single user bare metal mount un x nix utility hosts file winblows windows boot loader shell taskbar colatard ms dos desktop single platform wisa single tasking world 8.3 kernal batch file userspace bootscan dos environment variable kernel panic hackintosh wintel software defenestrate syscall reimage runlevel diff unixism system software cold boot attack stack pc bsd portable jobname reparse point blue screen of death miniport unix time application domain linuxism posix defenestration cross platform opensuse winmodem netbsd slacker root paravirtualization kernel legacy code superuser paravirtualize command line interpreter tight loop jiffy event linux package management system sidegrade dogcow boot disk macos wintroll interix win bash platform start menu start button clr specific reboot bootstrap device driver multithreaded lintel bootload utility program android googlephone coprocess freebsd installfest user group restricted function operating systems userland gnu scheduler ubuntero microkernel dos extender toolbar cp m gnome minix file allocation table windvocate green thread uefi middleware virtual address live cd multiboot minidriver multitasking bootblock window unix