Answer:
The TODAY Function will return the current date, while the NOW Function will return the current date and time. These can be very useful for a spreadsheet that requires having the current date and/or time. These functions are a bit different than most other Excel Functions in two ways. They are what's known as volatile.
Answer:
Computer programming is important today because so much of our world is automated. Humans need to be able to control the interaction between people and machines. Since computers and machines are able to do things so efficiently and accurately, we use computer programming to harness that computing power.
Answer:
Check button under error checking
Explanation:
Under the Tools tab there are two options:
Error checking and Optimize and defragment drive option.
clicking the check button with administrative permission under error checking option will examine the hard drive for errors.