A vertical set of data in a spreadsheet is called a column. This is as a horizontal set of data would be called a row.
A bit like how a brick column stands up right, and is made of rows of brights.
Answer:
When you shut down your electronic, all your open programs close and the electronic shuts down your operating system. An electronic that's shut down uses almost no power. In sleep mode, the electronic enters a low-power state. The electronics state is kept in memory.