Answer:
sry but I don't know the answer
Analog signals require more energy.
Analog=Constant flowing modulated
Digital is bursts of on/off binary data.
The Microsoft button was exclusively used in the 2007 versions of word, excel, powerpoint, access and outlook. It has all of the different options like to save, print, open ect. It was located in the top left hand corner of the screen. It looked a bit like this (see attachment).
They are called functions on a spreadsheet.