Writing parallel programs to run on them. Transactional Coherence and Consistency (TCC) is a new way to implement cache coherency in shared-memory parallel systems by using programmer defined transactions as the fundamental unit of parallel work, communication, coherence, consistency and failure atomicity. TCC has the potential to simplify parallel programming by providing a smooth transition from sequential programs to parallel programs. In this talk, I will describe TCC and explain how to develop parallel applications using the TCC programming model. I will also briefly describe the architecture of the Stanford Flexible Architecture Research Machine (FARM). FARM is a scalable system based on commercial high-density blade server technology. FARM is designed to improve the capability of architects and applications developers to experiment with large-scale parallel systems.