Digital Footprint

Learning Objectives Explain how digital information is stored permanently using the concept of binary. Model the spread of online information using a simple loop with variables. Analyze online privacy settings using 'if/else' conditional logic. Differentiate between an active digital footprint (posting) and a passive one (browsing data). Evaluate the long-term impact of a digital post by considering data persistence. Design a simple algorithm with conditionals to decide if information is safe to share. Ever wonder if deleting a photo *really* makes it disappear forever from the internet? 🕵️ Let's investigate the code behind the scenes! In this lesson, we will explore the advanced side of your digital footprint. We'll see how computer science concepts lik...

TermDefinitionExample Data PersistenceThe concept that digital information is saved and can last for a very long time, even if you try to delete it from one place.You delete a photo from your profile, but your friend already saved a copy to their computer. The data persists on their device. BinaryThe language of computers, made up of only two digits: 0 and 1. Every photo, message, and click is stored as a long sequence of these 0s and 1s.The letter 'A' in binary is '01000001'. A computer stores a photo as millions of these 0s and 1s, which makes it easy to copy perfectly. MetadataExtra data that is attached to a file, giving information about it. It's like a hidden label.A photo you take on a phone has metadata that can include the location where it was taken, the...

The Information Spread Loop FOR each person who sees a post: They might share it. IF they share it, all of THEIR friends see it. This pattern shows how a single post can spread exponentially, like a snowball rolling downhill. A variable tracking the number of viewers would increase with each loop, or 'share cycle'. The Privacy Conditional IF setting == 'Public' THEN anyone can_see_and_copy(). ELSE IF setting == 'Friends' THEN only_friends can_see_and_copy(). ELSE THEN only_you can_see(). This uses 'if/else' logic to model how privacy settings work. The computer checks a condition (the setting) and then follows a specific rule based on that condition. The Binary Permanence Principle All data is just 0s and 1s. Copying 0s and 1...