Generations of computers

What was the main electronic component used in the first generation of computers?

• Tape
• Wire
• Gum
• Vacuum tube or valve

At what period of time were second generation of computers used?

• 1940 to 1970
• 1956 to 1963
• present to future 
• 1945 to 1956 

What type of technology was used in fourth generation of computers?

• Integrated circuit
• Transistors
• Vacuum tubes
• Microprocessors

First generations of computers were based on the Integrated Circuit or chip

• True
• False

What period of time was the fifth generation of computers used?

• 1971 to present 
• 1956 to 1963
• Present to future 
• 1945 to 1956