connect usb keyboard to arduino uno using female pin

Using Arduino Networking, Protocols, and Devices
1

I am new to arduino and want to connect USB keyboard to arduino uno using female pin. I got library for ps2 keyboard but cant find any for USB keyboard.Can anyone suggest a libray.

2

usb is much more complicated than ps2 requiring usb host support via a shield

3

cant i connect usb keyboard to arduino uno using female pin without host shield

4

cant i connect usb keyboard to arduino uno using female pin without host shield

Sure. But, it will just sit there waiting for a USB master (host) to tell it what to do. The Arduino is NOT a USB master (host). If you want to use a USB keyboard, you need a USB host shield.