Simplify the following text for a Grade 7 native English-speaking person.
Original: The 1983 revision of the Atari 5200 has two controller ports instead of four , and a change back to the more conventional separate power supply and standard non-autoswitching RF switch .
Simplified: The 1983 version of the Atari 5200 has two controller ports instead of four . Atari changed back to the a simpler separate power supply and manual RF switch .