Explain each of the following terms as applied to memories: (i) access time: (ii) back-up. (4 marks)June/July 202

(i) Access time:

Access time refers to the amount of time it takes for a computer or device to retrieve data from its memory. The access time of a memory is an important factor to consider when choosing a memory for a computer or device, as it affects the overall performance of the system. A memory with a shorter access time will be able to retrieve data faster, which can improve the performance of the system.

(ii) Back-up:

A back-up is a copy of data that is made and stored in a separate location to protect against data loss due to hardware failure, software errors, or other issues. Back-ups can be made to a variety of storage media, including hard drives, external drives, and cloud storage.

It is important to regularly perform back-ups of important data to ensure that it is protected in the event of a data loss. Back-ups can be made manually or automatically, and may be stored locally or remotely depending on the needs and preferences of the user.