$($a$)$ DOS

$($b$)$ Linux

$($c$)2000$ Server

$($d$)$ Windows $3\mathrm{.}1$

$($e$)$ Windows NT Server

$($f$)$ Windows XP

$($g$)$ Windows Vista

$($h$)$ Windows $95$

$($i$)$ Windows $98$

$($j$)$ Windows $2003$ Server

$(1)$ Photograph the screen, note running programs, use normal shutdown.

$(2)$ Photograph the screen, note running programs, pull plug from back of computer.

$(3)$ Photograph the screen, note running programs, pull plug from back of computer.

$(4)$ Start button with Windows symbol.

$(5)$ Photograph the screen, note running programs, pull plug from back of computer.

$(6)$ Photograph the screen, note running programs, pull plug from back of computer.

$(7)$ Photograph the screen, note running programs, pull plug from back of computer.

$(8)$ Photograph the screen, note running programs, pull plug from back of computer.

$(9)$ Photograph the screen, note running programs, use normal shutdown.

$(10)$ Photograph the screen, note running programs, pull plug from back of computer.

$(11)$ Photograph the screen, note running programs, pull plug from back of computer.

$(12)$ Photograph the screen, note running programs, use normal shutdown.