<span>C. Maintenance
is an important practice can help prevent hardware trouble. Maintenance involves operational and
functional checks, servicing, repairing or replacing if necessary. Maintenance has
two types which are </span>preventive
or scheduled maintenance and corrective maintenance. Inspecting, maintaining
and protecting a device, equipment or facilities before breaking down or other
problems occur it is called preventive while corrective is when it is repaired
or replaced after wear, malfunction or break down.
Answer:
computer software is a set of computer instructions
IOS. It's Apple's own custom OS system, built for their tech.
Answer:John Mauchly and Presper Eckert
Explanation:
