especially check for lamp failure policy, dead pixels, factory damage replacement policy.
VGA/D-sub15 – analogue connector. must have for work. older equipment usually have this, most non-fruit laptops. you can sometimes buy an adapter.
composite: analogue, in use with older smart phones, video cameras. Obsolete, but still prevalent
S-video: analogue, better than composite, multi-channel cable, but was designed with relatively short cable lengths in mind. may be more sensitive to noise. Uncommon today.
SCART: colossal analogue connector with big wires. An old fashioned CRT set is highly likely to come with one of these. Also obsolete.
DVI- (variations I and D, D is better) standard digital connector slowly falling out of favour due to its huge size. Not found on most laptops
HDMI – high definition digital connector, standard also supports audio
DisplayPort – faster than the previous two. 2014 slim laptops tend to come with miniDisplayPort, made popular by Apple. a cheap cable ought to do it without conversion loss.
memory cards, PCMCIA, wi-fi – may allow operation and control independent of a PC