one that is VIRUS free.. haha
you would call a orthodontist
A laptop
You would need the right type of connection cord from the gameboy to your computer montior.
You would need to consult a plastic surgeon for this type of surgery.
Something in science would be nice.
depends on what kind of doctor you want to be
Medicine
The brand of computer speakers you would buy for your small business would depend on what type of computer you are running and what you need your speakers to do. www.testfreaks.com/pc-speakers/ will give you a comparison to work from.
a dermatologist.
This type of doctor would be an Endocrinologist.
The kind of computer cable you need, utlimately depends upon what kind of computer you have. You can always look for computer cables on www.google.com, just type in the type of computer you own and cables and many results should pop up.
It depends on the type of video. To watch online videos, you would need a web browser. If you mean playing DVDs or computer files, you would use a media program such as Windows Media Player. If you have trouble doing the above, then you might need a codec pack or a replacement video driver.