The most basic communication, data, and information storage comes down to two things: Yes or No. These two answers determine all of computers and is the basis of what is called binary communications.
- Are the lights on?…The answer is pretty simple.…It's either yes…or no.…When you ask yourself that question,…there are only two possible answers.…This is the basis of all computers.…Two or binary.…Binary is a system where there only are two possible states.…Yes or no,…on or off.…Computers contain trillions of these binary switches…and they all indicate states of on or off.…
There are a couple ways we can represent a binary state.…One is with something called a Boolean value.…Booleans are values that contain two options,…true or false.…So you can make a statement like,…"I have more than three pencils."…And the answer would either be true or false.…The other way is using numbers.…Numbers represent a lot of different things in…the computing world but these numbers will…represent the most basic elements of our computer.…In binary, the number one represents on…and zero represents off.…
Binary information can be stored and communicated by…using states of on or off.…Microchips have logic gates in them which…use electricity to determine the on and off signals.…
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