This is an Apple display adapter. They come in various shapes and sizes. The left hand end plugs into you laptop. There are 5 different possible left hand ends you can choose from: MiniVGA, DVI, Mini-DVI, MicroDVI and MiniDisplayPort! You’ll need to match it to your macbook. The right side plugs into a data-projector or monitor – there are 3 different right hand ends to choose from, VGA, DVI or HDMI. You’ll need to match this to your projector. If you always carry around the adapter to connect your mac to a VGA projector, that should get you out of trouble 99% of the time. If you want to be 100% sure, carry an adapter to connect to DVI as well.
If you’ve got an Aluminium Powerbook, (either the last of the G4 models or the new intel mac pro models) they are a great machine (the 15 inch is my favourite) but after a few years the hinge can get loose. Thankfully this is not like the old Titanium powerbooks where the hinge was broken, it is just a matter of a few screws that need to be tightened! Here’s how to do it.
G4 ibook motherboard fault.
There is a problem with the logic board in the Macintosh G4 ibooks. It can appear after a year or more in some machines and the symptom is that after being on for a few minutes, the screen goes black (it looks blank, but the light has gone off) , the fan turns on, and the computer freezes. You might think it is a problem with the display but it’s actually a problem with one of the chips on the main motherboard. This article describes the problem and how to repair it.