Week 3 Step 1 Gadgets of the Present

1. A vacuum cleaner is a device that uses an air pump to create a partial vacuum to suck up dust and dirt, usually from floors. The dirt is collected by either a dustbag or a cyclone for later disposal.

2. A smartphone is a mobile phone offering advanced capabilities, often with PC-like functionality.
3.An autopilot is a mechanical, electrical, or hydraulic system used to guide a vehicle without assistance from a human being.
4. The Internet is a global system of interconnected computer networks to serve billions of users worldwide. 
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