i wanted to know more about dcope and how it can be used and with which processors,also let me know that this software comes with which kit from keil.
dscope was the predecessor of the debugger in uVision. uVision is the current product: http://www.keil.com/uvision2/
You can download a free evaluation of the complete 8051 toolchain (including uVision) from: http://www.keil.com/demo/ Be very sure to read the limitations carefully: http://www.keil.com/demo/limits.htm Then start by reading the uVision Getting Started Guide, and working through the example projects in it. This will give you a proper introduction to the tools, how they work, and how to use them - rather than just jumping-in blindly at the deep end. (The uVision Getting Started Guide is available on the 'Books' tab in the 'Project' Window; The 'Books' window is also available via the 'Help' menu; failing all that, search for GS51.PDF in your Keil folder)