Bluetooth technology is the most common method of connecting a Smartphone to a PC. Wi Fi is also used and with some phones, a direct wire connection, such as USB can be used.
To update your Xperia smartphone you need to connect it to your desktop PC or Mac and run the Sony's PC Companion Software. recommend you backup your smartphone files and data before you apply the update.
The smartphone is continuing growing and out selling the pc. You can do anything on the smartphone that you can do on a pc. The big difference is the portability.
Bluetooth
A Handheld PC like a PDA or smartphone could be considered the same as a tablet (at least when looking at current technology). However, I wouldn't go to an electronics store, ask for what people call a tablet and expect to get a smartphone.
IntoMyPhone is an Android application that allows you to connect to your phone from your PC.
To connect your guitar to your PC for recording and playing music, you can use an audio interface. This device allows you to plug your guitar into it, and then connect the interface to your computer via USB. You can then use recording software on your PC to capture the sound of your guitar.
USB
I have an app called Zimly a well featured media player app, which helps me to connect my PC to TV. I use Zimly to transfer my media files from my PC to my smartphone, or to my TV using chromecast. With the help of Zimly I am able to watch my favorite videos on the big screen. Try Zimly to connect your PC to your TV.
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You can connect your guitar to your PC using a guitar interface by plugging one end of the interface into your guitar and the other end into a USB port on your computer. This allows you to record and play music on your PC using software programs.
Through cross lan cabel we connect pc to pc.
A person should install a PCIe network adapter in the PCIe network slot on a pc. The PCIE network adapter allows the PC the ability to connect with the Internet.