How Computers Work: Binary & Data
HOW COMPUTERS WORK: DATA & BINARY
In this video, Limor Fried and Federico Gomez Suarez explain how computers work with data and binary. They discuss the role of 1s and 0s in computer operations, the concept of bits, the binary number system, and how different types of information can be represented using numbers.
Introduction to Computers
- Computers work on 1s and 0s.
- Limor Fried is an engineer at Adafruit Industries.
- Federico Gomez Suarez is a software developer with Microsoft Hack for Good.
The Role of 1s and 0s
- Computers use 1s and 0s internally, but most people don't directly deal with them.
- The on/off state of electric wires represents the binary system.
- A single wire carrying electricity can represent YES/NO or TRUE/FALSE.
Bits and Binary Number System
- A single wire's on/off state is called a bit, which is the smallest piece of information a computer can store.
- More wires allow for more bits, enabling representation of more complex information.
- The binary number system uses two digits (0 and 1) to count instead of ten digits in the decimal system.
Representation of Numbers
- Each position in a number has a value based on powers of two in the binary system.
- For example, the number 9 in binary is represented as 1, 0, 0, 1 (8 + 1).
- Using multiple wires allows computers to store larger numbers.
Representation of Other Information
Text in Binary
- Letters in the alphabet can be assigned numbers for representation.
- Words or paragraphs can be represented as sequences of numbers using the binary system.
Images in Binary
- Images are made up of pixels, and each pixel's color can be represented with numbers.
- Millions of pixels in an image result in a large amount of data.
Sound in Binary
- Sounds can be represented graphically as waveforms.
- Each point on the waveform can be represented by a number.
- Higher quality sound requires more bits for a wider range of numbers.
Conclusion
- While users may not directly deal with 1s and 0s, understanding their role helps comprehend how computers work internally.