Question: describe any 2 main components that are found on a typical desktop
[{'answer': 'power supply', 'provenance': [{'wikipedia_id': '52742', 'title': 'Desktop computer', 'start_paragraph_id': 1, 'start_character': 212, 'end_paragraph_id': 1, 'end_character': 224, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'motherboard ( a printed circuit board with a microprocessor as the central processing unit ( CPU )'}, {'provenance': [{'wikipedia_id': '52742', 'title': 'Desktop computer', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 714, 'bleu_score': 0.968331239361046, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5565475119166872984}, 'section': 'Section::::Abstract.'}]}]