---
title: Storage
units: [Problem Solving and Computing]
summary: Computers save information to use in the future.
weight: 70
---

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## Today's Objectives
- Determine which information in a computing problem should be stored for later use.
- Identify guidelines regarding what information should and should not be stored as part of the computing process.
- Use the input-output-storage-processing model to describe a computing process.

## Lesson Overview
### How do computers save information to use in the future?
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Computers save information to use in the future through storage.

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### What do computers do?
{{< video title="What Do Computers Do?" src="/videos/what-do-computers-do.mp4" poster="/images/video-poster-what-do-computers-do.jpg" >}}

## Assignment
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### Sample Apps
For each app on Code.org, record and fill out the respective table:

#### Outfit Picker
| Information                    | Should it be stored? | Why? Or why not? |
|--------------------------------|----------------------|------------------|
| Favorite color                 |                      |                  |
| Season                         |                      |                  |
| Weather          

#### Friend Finder
| Information                    | Should it be stored? | Why? Or why not? |
|--------------------------------|----------------------|------------------|
| List of friends                |                      |                  |
| Friend locations               |                      |                  |
| Friend requests                |                      |                  |

#### Choose a Kids Movie
| Information                    | Should it be stored? | Why? Or why not? |
|--------------------------------|----------------------|------------------|
| Favorite movie                 |                      |                  |
| What are you in the mood for?  |                      |                  |
| Do you want an animated movie? |                      |                  |
| Recommendation                 |                      |                  |

### Guidelines
Now that you’ve seen some examples of input that should and should not be stored, brainstorm at least two guidelines about what types of information should and should not be stored. Your guidelines should follow this format:

"If the information ______________________, then that information (should / should not) be stored because _____________. For example, ____________ (should / should not) be stored."

{{% unit-journal-question-of-the-day question="Why is storage an important part of the computing process?" %}}