The federal High Performance Computing and Communications (HPCC) program was created to accelerate the development of future generations of high performance computers and networks and the use of these resources in the federal government and throughout the American economy. This report describes the HPCC program which is developing computing, communications, and software technologies for the 21st Century. The HPCC program will provide key parts of the technological foundation for the National Information Infrastructure. The program is organized into the following five components: High Performance Computing Systems (HPCS); National Research and Education Network (NREN); Advanced Software Technology and Algorithms (ASTA); Information Infrastructure Technology and Applications (IITA); and Basic Research and Human Resources (BRHR). The report is divided into four sections: executive summary; program accomplishments and plans; high performance living today and tomorrow; and the HPCC program in summary. A glossary of terms and a list of contacts are included. (JLB)