The person or user associated in computer field is called​

Explanation:

A computer programmer, sometimes called a software developer, a programmer or more recently a coder (especially in more informal contexts), is a person who creates computer software.

computer technision because it's the person who fixes and maintenance of the computer and makes sure everything is running ok with it and has no bugs or viruses or spam.

answermetacognitive;

answer inspecting packets in isolation from their context;