3 NOMENCLATURE 1. Power ON/OFF Switch 2. Reset Key 3. Alphanumeric Keyboard 4. Space Bar 5. Cursor Control Keys 6. User-defined Function Keys 7. Cartridge Door 8. Power Indicator 9. Memory Expansion Slot (for 16K and 64K Memory Pack) 10. Expansion Slot (with protective door) 11. Parallel Printer Port 12. Joystick Socket (right) 13. Joystick Socket (left) 14. Cassette Port 15. Video Monitor Socket 16. TV Socket 17. Power Socket 18. Channel Switch (optional ) 13