Difference between ram and rom

How can a user open a blank presentation? 1.on the file menu, click new, and then click recent templates 2.on the file menu, click new, and then click blank presentation 3. on the view menu, click templates, and then click recent templates 4. on the view menu, click samples, and then click blank presentation

Some of the first computer games were created in the early 1970s by college students experimenting after hours to see what the were capable of doing.

The "instance" relationship shows that something is an object of a