Answer:
There are certainly many hidden costs, and you need to find them out. I am listing some. The GPU can cost a lot if you are using them for complex computing like in the case of Bitcoin. You need to pay heavy electricity bills as well. And if you want to install the webserver then as well, you need to keep your computer open all the time, and pay a good sum as an electricity bill. Many more hidden costs can be found. And one out of above is used in Schools, the webserver. Some more hidden costs can be Network cost, as the school is big, and you need to connect all through LAN, and at times we also need WAN set up. And these are another hidden cost. Various education licenses come for free, and smart classes cost as well. The video conferencing, VOIP, etc costs as well. Smart classes training by various computer training institute for teachers like one from adhesive.
Explanation:
Please check the answer section.
You have a raspberry pi connected to all the sensors and a code running to trigger if the sensors are triggered. Each sensor and keypad would run to a different input on the pi. They should al be able to be powered with a single cell lipo. Is that what you are asking?
Answer:
The answer is Frequency Spectrum.
Explanation:
The frequency spectrum is range of all component frequencies.It contains all the waves which are as following:-
Gamma Rays
X-Rays
Ultraviolet
Visible light.
Infrared
Micro wave
Radio wave
These all waves have their range of frequencies.The waves that are visible to us is only the visible light.
The answer would be the TCP/IP Application Layer.
