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Unit 3 Computers Period 1 Warming up Heavy! Difficult! Hard! Tired! 1. Easy! 2. Fast! 3. Free! keyboard mouse monitor screen speaker host puter camera What do they have in mon? an abacus a calculator a desktop a notebook puter a laptop digital camera a robot (What do they have in mon?) ? I think that… ? In my opinion… ? I believe that… ? What’s your reason? ? Why do you think so? can be used for calculating. can deal with maths problems. are our friends. are useful and helpful. Discussion work for us in Mars(火星 ) What’s next? carry things work in wars (戰(zhàn)斗 ) 仿真機(jī)器人 entertainment 娛樂(lè) What do you think will be the next development? CD DVDROM DVD RW CRT monitor LCD monitor CPU hard disc chips /motherboard some hardware: 使用 陰極射線管 (Cathode Ray Tube)的 顯示器 Liquid Cr