1946 - First vacuum tube-based computers developed; universities help in computer development effort; technology used in war effort.
1951 - Little technology used in schools, primarily TV; baby boom begins with resulting increases in class size; first-generation Univac computer delivered to the US census bureau.
1954 - General Electric is the first business to order a computer. Early rock and roll music, based on the rhythm and blues tradition, gains a little in popularity.
1955 - IBM's first commercial computer is sold; the cold war results in use of technology in aircraft design and in weapons control. Russia developing the technology for the first spacecraft.
1956 - Eisenhower elected president; Elvis Presley records "Hound Dog"; school overcrowding growing; school dropout rate rapidly declining toward zero; schools still based on the teacher/manager model in individual teacher-controlled classrooms; the cold war continues with technology playing an important role and is intensified when Russia sends up their Sputnik space vehicle to demonstrate their lead in technology.
1958 - As cold war continues, National Defense Education Act brings some new money and some new technology into schools, but primarily in vocational education. Mainframe host computers are not widely accepted in schools that are still using the si ngle classroom, teacher/manager method of delivering information to students.
1959 - Transistor-based computers in use; the cold war continues with public support for the development of technology needed for space exploration.