The binary number system uses two symbols to represent values. Using this base-2 number system, other values can be stored from more recognizable systems like decimal in a way that computers can natively store and transmit.
- [Voiceover] Binary states are the basis…of how computers store, process…and share information using states of on or off.…Using the binary number system…we can represent these states using a base two system…with two digits, zero and one.…Using the rules of number systems…we can create a system for what a binary digit looks like.…We have a maximum of two possible digits, zero and one.…We then, also, have multiple columns…that exponentially increase in value from right to left…based on two, the base number of the system.…
If we count up from zero, we can see…how binary begins to work.…First, I start with zero, then I add one, making it one.…If I add again, I've maxed out the possible number…of digits in the first column, so I then carry that over…to the next column and return back to zero in the first.…We continue to add one, adding digits to the number…and eventually get one that is several digits…consisting of multiple ones and zeros.…
Using the formula, we can apply it to each column.…We can then take each column and multiply the digit…
This course is the first in our Computer Science Principles series, designed around the AP Computer Science Principles (CSP) curriculum. It is a great foundation for anyone, at any age, to prepare for careers in technology and computer science. Lessons in this segment cover the building blocks of computing: binary logic, number systems, text and image encoding, compression, and simple communication protocols. Understanding these basics will help you understand the interplay between hardware, software, data, networks, and the people that use them.
- Binary and bits
- Digital communication
- Number systems
- Encoding text
- Compressing text and images