A hacker can access or computer over your wifi signal and access your computer files if your computer is lift on ... i don't know what "green light" your are referring to ... but the only indication of a hacker being on your computer is if you check you inbound -outbound connections and don't recognize a IP address ...
Without a camera attached to the Mac, no. If there is a camera attached, it is possible.
its a hack
The picture in picture function on cameras is for when one would want to record a video as well as being able to take a picture. The picture in picture that one would find on a TV set, would allow one to watch 2 TV shows at once.
Yes there is a way. If you have a video editing software you can just upload the video and choose the frame you would like to be your picture.
A "bad hacker" does things for personal gain, usually money, while an "ethical hacker: does what they do for the betterment of mankind. It depends on your morals, but most people would rather be good than rich.
The camera records light. Without light, there would be no image.
The film is light sensitive and if it wasn't in a light proof cassette then the film would be surrounded by light so the picture that it takes would be ruined.
The benefits of High Definition (HD) video are that it primarily has a better picture than a Standard Definition video would. Therefore, you are likely to see more detail with a high definition video than you would if you were to watch it in the standard version.
Well that probaby would be a video ipod but as for a mp3. I have a sansa clip which is itself a video mp3 which I find very good, its small but the picture is great
You CANT
Yes some would say that.
I do not think so as it would not be possible no light for the photograph.
The Canon VFL1 Video Flash Light is available for under $100 and offers excellent professional grade performance.