what is a computer?, what does a monitor do?, what type of device is a mouse?, what is a keyboard used for?, what is a file?, what is a folder?, what is the internet?, What is the browser?, What is the main memory called??, what does the Delate key to?, What does a printer do?, which button is used to turn on a computer?

Activity

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?