Things we use daily

1. Folder

1.1. usage

1.1.1. store papers

1.1.2. hold pictures

1.2. places

1.2.1. schools

1.2.2. offices

2. Dictionary

2.1. Usage

2.1.1. look up the new words

2.1.1.1. pronounciations

2.1.1.2. meanings

2.1.1.3. usages

3. Calculator

3.1. Usage

3.1.1. add up

3.2. History

3.2.1. 1943- slower and heavier

4. Cellphone

4.1. Usage

4.1.1. keep in touch

4.1.2. make and receive calls

4.1.3. take shots

5. Laptop

5.1. Usage

5.1.1. work

5.1.2. entertain

5.1.3. learn

5.1.4. discover the world

5.2. Comparision

5.2.1. Computers: bigger and heavier

5.2.2. Laptops: smaller and lighter