Case and external
ATX power supply unit (PSU)
Sockets visible at the back of most PCs
Green: PS/2 port for mouse
Lilac: PS/2 port for keyboard
Pink: parallel port for printer
Yellow: TV-out socket (rarely seen)
Orange: external SATA port for external hard drives (rarely seen)
4 black rectangles: USB ports
Socket above first two USB ports: ‘Firewire’ port
Socket above second two USB ports: network port
Monitor cables
VGA cable
(used by CRT monitors and analogue LCD screens)
DVI cable
(used by digital LCD screens)
Hard drive cables
IDE data cable
(used on older hard drives and CD/DVD drives)
SATA data cable
(used on newer hard drives and CD/DVD drives)
SATA power cable
USB Cables
USB male type A jack
(goes into your PC)
USB male type B jack
(goes into your printer or scanner)
USB mini type B jack
(goes into your digital camera or PDA)