Working in pairs or groups, design an online store with classes for Store, ItemForSale, Book, Movie, and Author. First, do some research in an online store like Amazon to see what information they store on books, movies, and authors, and what type of information is the same for all items for sale. List at least 2 attributes for each class. Which attributes should be in ItemForSale and which in Book, Movie or Author

yes we can change both the color of the value of a cell as well as background color of a cell at the same time .

as we know that excel sheet consists of columns and rows.

and intersection of column and row is called cell.

we can change color of the cell and background of the cell at the same time.

hence the statement that

can a person change color of the cell and background of the cell at the same time is true.

that without the operating systems you would have to control and synchronize computer hardware.