Answer:

1. you connect it because you want have that specific file on your computer like sensitive files or either a cleaner so that any harmful viruses can not harm your computer. you can pair all kinds of Bluetooth devices with your PC—including keyboards, mice, phones, speakers, and a whole lot more.

2.To connect your device to a computer via USB: Use the USB Cable that came with your phone to connect the phone to a USB port on your computer. Open the Notifications panel and tap the USB connection icon . Tap the connection mode you want to use to connect to the PC.

Answer:

Why do you connect devices to your computer?

You connect it because you want to see a file from it or specific file on your computer like sensitive files or a cleaner so that any harmful viruses will not harm your computer.

How did you connect your devices to your computer?

With a USB cable, connect your phone to your computer. On your phone, tap the "Charging this device via USB" notification. Under "Use USB for," select File Transfer. An Android File Transfer window will open on your computer.