Hello,
I need advice.actually I want to do some mirocontroller based projects. I want to work with 8051, PIC, and ARM processor. so I need programmer for microcontroller. so I want to buy programmer for microcontrollers

there are many products available in market. I don't have knowledge which one should i buy? please suggest me some universal programmer

 

How much do you want to spend?
http://www.bpmmicro.com/

Kinda pricey, but if that is what you need there is no substitute.

 

You might be better off by using several device-specific in-circuit programmers.

 

I want to work with 8051, PIC, and ARM processor.

Just pick one, you don't need to do all three.