Grade 3
This keeps information for a short time
Storage
Memory
Cpu
This keeps information for a long time
Storage
Memory
Cpu
The short name of it is cpu
Captional processing unit
Central processing unit
Centre processing unit
It's the oldest communication type
Typewriter
Radio
Telegraph
Which is the right one ?
Television
Televesion
Telivesion
Now we use ...... To communicate
Telephone
Letter
Laptop
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