Transcript 新人教必修二Unit 3 Computers

Unit 3 Computers
monitor
screen
host
computer
speaker
keyboard
mouse
What do they have in common?
A calculator
An abacus
A desktop
A notebook
computer
digital
camera
a laptop
palmtop
Reading:
Who am I?
Listen to the tape and answer these
questions.
1 Who am I?
A computer.
2 Who was the first person to invent the
earliest computer?
Charles Babbage
3 Who was the next important person to
design computers?
Alan Turing
Scanning
timeline
1642: The computer began as a calculating machine.
1822: the Analytical Machine was built by Charles
Babbage.
1936: The computer grew rapidly both in size and
brainpower.
1940s: The computer had grown as large as a room.
1960s: The first family of computers was connected
to each other.
1970s: Computers were used in offices and homes
Now: Computers connect people all over the world
The development of computers:
Analytical machine
Universal machine
Internet
Artificial intelligence
Computer
Calculating machine
Useful phrases
calculating machine
计算器
Analytical machine
分析机
card with holes
穿孔卡
technological revolution
技术革命
universal machine
万能机,通用机器
artificial intelligence
人工智能
go by
走过，过去
by internet
通过网络
human race
人类
The development of computers:
Calculating machine
Internet
Computer
Analytical machine
Universal machine
Artificial intelligence