Usb Port Interface

Hai friends
I need your help.I would like to do one project (8051 Eprogrammer)
I have the actual circuit.In that circuit the cable used for programming from computer is RS232. But in my laptop I don't have Rs232 comp port.I don't need Usb to rs232 convertor. I know the pin digram for rs232(transmitter and receiver,Gnd).But I want that in usb
Please help
Thank you
If anybody knows please send it to "haishraves@gmail.com"

An FT232R is a USB to serial IC.

For that you need an converter ( something like ft232r) or you can use an pc with rs232 port .