Learn how public key encryption can protect computer data.

Learn how symmetric encryption techniques help protect computer data.

Find out about data encryption, decryption and cracking computer data to avoid virsus and cyberattacks.

Find out why we need to encrypt computer data to avoid hackers.

A tutorial explainning the use of if, else, and Boolean logic in computer programming.

Learn how nested conditionals work in computer programming.

Learn about computer programming using compound booleans with logical operators.

Learn how computers split messages into packets and those packets hop from router to router on the way to their destination.

Learn that the internet is a network of computers connected to each other. But what does each physical connection look like? It depends on the needs of the connection and the size of the network.

Learn about the limitations of storing numbers in computer programming.

See how we can generate random values in our computer programs, and use those to make decisions and simulate natural processes.

Computer programs don't just store strings, they also manipulate them. With string operations, we can chop strings up, mash strings together, or transform strings in all sorts of ways. Learn how here.

Readings and practice problems about online data security.

Types of long term storage of data on the computer and retrieval are examined.

Computers store all files as binary data, long strings of 111s and 000s. Files represent all types of data: images, videos, documents, text files, spreadsheets, and applications. Files are stored as binary data.

Small and large computer file sizes are examined with examples of storage data.

Computer input and output devices are examined in this article.

The Hexadecimal number is explained as well as its relationship and need in computers.

Computer programs are full of repetition, since our programs automate and simulate the world around us. Programmers use for loops to repeat a set of instructions a specific number of times.

Using Heuristics when solving computer problems.

Problems a computer can never solve are called "undecidable problems". No algorithm exist that can answer the problem on all inputs.

Public Key Encryption, an asymmetric encryption technique, is used to allow computers to securely communicate. The high level process is explained in this article.

Explore how binary information is sent and how quickly they can be sent.

Practice problems with the internet protocol suite of networks.