The cost includes the Raspberry Pi 400, which includes the power supply, keyboard, and mouse as well. More information can be found at the Raspberry Pi Foundation's website.
The cost includes a 20" LED computer monitor and speaker set or headphones.
This is for a battery with a 450AH capacity to allow 4-5 hours of operation for ten terminals.
This is for an inverter/charger with 850VA power rating.
This cost includes a 75w solar panel to charge the battery.
A computer terminal set powered by Raspberry Pi 400 costs about US $275. To establish a computer lab with 6 such terminals would cost US $1650.
