Computer Architecture

Electronic computers began around?

• 1940's - 1950's

• 1930's - 1940's

• 1950's - 1960's

• 1920's - 1930's

Computers were done for some specific purpose contrary to a general purpose computer we understand today

D_ / E_ messages

N_ computing

B_ computation

It is (1) unreliable, (2) has high electric consumption, and (3) gives off too much heat

• Vacuum Tube

• Transistor

• Integrated Circuit

Diodes, triodes, etc.

• Vacuum Tube

• Transistor

• Integrated Circuit

less power consumption

• Vacuum Tube

• Transistor

• Integrated Circuit

smaller compared with vacuum tubes

• Vacuum Tube

• Transistor

• Integrated Circuit

greater reliability compared with vacuum tubes

• Vacuum Tube

• Transistor

• Integrated Circuit

smaller and lighter compared with transistors

• Vacuum Tube

• Transistor

• Integrated Circuit

more reliable compare with transistors

• Vacuum Tube

• Transistor

• Integrated Circuit

According to our literature...

1960s - ?

• mainframes

• minicomputers

• desktop computers

• emergence of Internet and WWW, first successful handheld digital computing devices and high performance digital consumer electronics