With the help of the article, correct the false statements.

1. Wireless networks use cables to make connections.
2. In a wireless network, computer devices transmit data to one another using radio signals.
3. Bluetooth technology is widely used.
4. IrDA networks do not operate with infrared light pulses.
5. Installing a HomeRF (SWAP) network is very expensive.
6. Wi-Fi wireless networks are more suitable for home use than for office use.
7. A Wi-Fi (wireless fidelity) network is slow and unreliable.