mikroC PRO for 8051 is a full-featured ANSI C compiler for 8051 devices from Atmel and Sillicon Labs. It features an intuitive IDE, powerful compiler with advanced optimizations, lots of hardware...
BASCOM-8051 is the Windows BASIC COMPILER for the 8051 family. It is designed to run on W95/W98NT/XP and has all the features of BASCOM LT. In addition it has full support for arrays and the single floating point type.
8051FLASH is a great tool used for programming 8051 microcontrollers from Atmel@. As a low-consumption device, it is ideal to be used with notebooks.
8051 IDE is a simple 8051 microcontroller emulator for the 8051 series of microcontrollers, like 8052, 8031, 8751, 8752, etc. The only difference between the different versions is the internal Memory type (ROM, EPROM, etc.) and data RAM size.
The 8051 Workbench provides a unified interface to a series of user-replaceable programs, including an assembler (A51.EXE), simulator (8051SIM.