The IEEE Computer Society traces its orgins to the 1946 formation of the Committee on Large-Scale Computing of the American Institute of Electrical Engineers (AIEE). 

Five years later, the institute of Radio Engineers (IRE) formed its Professional Group on Electronic Computers.  The principal volunteer officers of both these groups were designated chairs.  The AIEE and the IRE merged in 1963 to become the Institute of Electrical and Electronics Engineers (IEEE). 

The respective committee and group of the predecessor organizations combined to form the modern in IEEE Computer Society.  The society's principal volunteer office has been designated as president since 1970.