Answer: Operating system
Explanation:
The operating system is the type of software that are responsible for manage the processor time and also the memory allocation in the system. The operating system mainly deals with the processor time by scheduling the processor work done in the system.
The OS mainly control the system and then schedule the execution of various types of function by the central processing system (CPU). It also control the memory allocation in the system.
Answer:
To select nonsequential cells, click the first cell, hold down the Ctrl key, and click each additional cell (or row or column) you want to select. To selectthe entire worksheet, click the small box located to the left of column A and above row 1. Optionally, you can selectall cells in a worksheet by pressing COMMAND+A......
To select all cells on a worksheet, use one of the following methods:
Click the Select All button.Press COMMAND+A. Note If the worksheet contains data, and the active cell is above or to the right of the data, pressing COMMAND+A selects the current region. Pressing COMMAND+A a second time selects the entire worksheet.
