A.M. Turing Award                                                                    Exhibit 4i                                                                          

ACM's most prestigious technical award is accompanied by a prize of $100,000. It is given to an individual selected for contributions of a technical nature made to the computing community. The contributions should be of lasting and major technical importance to the computer field. Financial support of the Turing Award is provided by Intel Inc..  The recipients include:

1966 A.J. Perlis
1967
Maurice V. Wilkes
1968
Richard Hamming
1969
Marvin Minsky
1970
J.H. Wilkinson
1971
John McCarthy
1972
E.W. Dijkstra
1973
Charles W. Bachman
1974
Donald E. Knuth
1975
Allen Newell
1975
Herbert A. Simon
1976
Michael O. Rabin
1976
Dana S. Scott
1977
John Backus
1978
Robert W. Floyd
1979
Kenneth E. Iverson
1980
C. Antony R. Hoare
1981
Edgar F. Codd
1982
Stephen A. Cook
1983
Ken Thompson

1983 Dennis M. Ritchie
1984
Niklaus Wirth
1985
Richard M. Karp
1986
John Hopcroft
1986
Robert Tarjan
1987
John Cocke
1988
Ivan Sutherland
1989
William (Velvel) Kahan
1990
Fernando J. Corbato'
1992
Butler W. Lampson
1993
Juris Hartmanis
1993
Richard E. Stearns
1994
Edward Feigenbaum
1994
Raj Reddy
1995
Manuel Blum
1996
Amir Pnueli
1997
Douglas Engelbart
1998
James Gray
1999
Frederick P. Brooks, Jr.

2000 Andrew Chi-Chih Yao
2001
Ole-Johan Dahl
2001
Kristen Nygaard
2002
Ronald Rivest

         Adi Shamir

         Leonard M. Adelman

2003 Alan Kay

2004 Vinton G. Cerf

         Robert E. Kahn