When the computer was invented and how much did it cost?

Answer 1

Here are some early machines:

• Atanasoff Berry Computer (ABC), invented 1937, running 1942 - $6,000
• ENIAC, invented 1943, running 1946 - estimate $50,000 actual $500,000
• UNIVAC I, running 1951 - first contracts $250,000 production contracts $2,500,000
• IBM 701, announced 1952 - rental only $8,100/month initially, this went up to $15,000/month by 1953 and higher if used for more than 1 shift each day
• IBM 650, announced 1953 - rental only $3,750/month for basic machine used 1 shift each day