Answer:
1. update-make (something) more modern or up to date.
2. software-the programs and other operating information used by a computer.
3. operating system-the software that supports a computer's basic functions, such as scheduling tasks, executing applications, and controlling peripherals.
4. upgrade-raise (something) to a higher standard, in particular improve (equipment or machinery) by adding or replacing components.
5. install-place or fix (equipment or machinery) in position ready for use.
