(1) Center 
The term Center means a High-End Software Development Center established under section 5542 (d) of this title.

(2) High-end computing system 
The term high-end computing system means a computing system with performance that substantially exceeds that of systems that are commonly available for advanced scientific and engineering applications.

(3) Leadership System 
The term Leadership System means a high-end computing system that is among the most advanced in the world in terms of performance in solving scientific and engineering problems.

(4) Institution of higher education 
The term institution of higher education has the meaning given the term in section 1001 (a) of title 20.

(5) Secretary 
The term Secretary means the Secretary of Energy, acting through the Director of the Office of Science of the Department of Energy.