What does CPU stand for?
central processing unit
Are peripheral devices useful?
yes
When did the first computers start appearing?
the first century
How big were the first digital computers?
The size of a large room
How were analog computers used in WWII?
in specialized military applications
such as?
calculating torpedo aiming
Are modern computers more efficient than early computers?
yes
What has to accompany the processing unit?
memory
What does the processing unit do?
carries out arithmetic and logic operations
What were computers used for in the medieval era?
astronomical calculations
Did original digital computers use a lot of power?
yes
How much?
as much as several hundred modern personal computers
Are computers found in a lot of contemporary items?
yes
such as?
MP3 players
and?
fighter aircraft
and?
industrial robots