This circuit diagram is of an Atari 2600. I have circled the components that I want to know about. Can you please tell me what they are and why are they used here?
The ic is a CD4050 hex buffer according to the schematic. This device basically 'strengthens' as in the output has a better current drive capability vs the logic signals from the TIA chip. The 4 buffers along with the resistors for a DAC (digital to analog converter) used to generate what I would assume is the color/video signal.
The CD4050 is a common and cheap ic.