You can Control your a Windows PC from Your SmartPhone or Tablet, even with a physical keyboard. Many apps has been Available like Microsoft remote desktop app, TeamViewer for Remote Control, among which Microsoft app is used mostly for professional use while TeamViewer app also be used for personal use.

Microsoft’s Remote Desktop App
With This App you can connect to your work resources and remote PC from anywhere you feel like working. This app is used mostly for business and professional use rather than personal use.
Features of app :.Access your desktop with your phones easily.
.Rich multi-touch experience with remote desktop protocol.
.It has an outstanding feature or technology, namely Network Layer Authentication which secure connection to your data and applications.
.High quality video and sound streaming.
This app is friendly for the personal use.

TeamViewer for Remote Control
This app is friendly for personal use, rather than controlling your own computer you can also remotely troubleshoot your relatives PC.
Features of app:.Access to computers is possible also during a telephone call.
.Transfer the files from your PC to phone or from phone to PC.
.Automatic quality adjustment.
.Remotely reboot the computer.
To use TeamViewer you have to Download an Install Teamviever on Your Desktop and Mobile, after installing on your smartphone you will have to login with the details that teamviewer window displays