The four main components are main memory, arithmetic and logic unit, control unit, and input/output (I/O). :)
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<h3>Types of Computer games</h3>
- Action
- Adventure
- Simulation
- Sports
- Role-playing
- Puzzlers
- Party games
<em>(</em><em>That's</em><em> </em><em>all</em><em> </em><em>i</em><em> </em><em>know</em><em>)</em><em> </em>
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Altering grade records within a computer system is called forgery. The correct option among all the options given in the question is option "a". Any kind of altering using the computer without the consent of the proper authorities amounts to forgery. Forgery is a crime and a person can be jailed for such a serious offense.