- Computers are binary - they can only store data as a 0 or as 1
- Numbers like 1, 2, 3, 4, 5… are stored as 1, 10, 11, 100, 101 => while these look like decimal numbers, they are binary
- Letters & other characters are also stored in binary by mapping a discrete character to a number
- see Unicode, ASCII, UTF-8, & hexadecimal
- A is mapped to ASCII Code 065 => which in binary form is 0100001
- B is mapped to ASCII Code 066 => which in binary form is 0100010
- ABC in binary is then: 01000001 01000010 01100011
- in binary, text letter always begin with a “0”
- Text to Binary mapper

- Each 0 or 1 is a bit
- 8 bits equals a byte
- Why 8 bits?
- If we had only 4 bits, there would only be 16 (2^4) possible characters, unless we used 2 bytes to represent a single character, which is more inefficient computationally. If we had 16 bits in a byte, we would have a whole lot more ‘dead space’ in our instruction set, we would allow 65,536 (2^16) possible characters, which would make computers run less efficiently when performing byte-level instructions, especially since our character set is much smaller. Additionally, a byte can represent 2 nibbles. Each nibble is 4 bits, which is the smallest number of bits that can encode any numeric digit from 0 to 9 (10 different digits).

- Why 8 bits?
- ABC therefore equals 3 bytes

1GB = 1024MB 1MB = 1024KB 1kB - 1024 Bytes 1 Byte = 8 bits

**Why 1024?**

- 2 to power of 10 = 1024 ….using power of 2 rather than a power of 10

- Compose Examples: https://github.com/docker/awesome-compose

- Javascript Ref: https://www.w3schools.com/js/js_if_else.asp
- Javascript Formatter: https://beautifier.io/

- Basic Syntax: https://www.markdownguide.org/basic-syntax/
- Daring Fireball
- CommonMark
- Github: https://docs.github.com/en/github/writing-on-github/basic-writing-and-formatting-syntax
- Reddit: https://www.reddit.com/wiki/markdown
- Hugo Markdown: https://www.markdownguide.org/tools/hugo/

- Primer: https://github.com/ziishaned/learn-regex
- https://regex101.com/
- https://blog.robertelder.org/regular-expression-visualizer/
- https://regexper.com/

- Commonly used operators
- reference - also other good info here: web scrapping, etc….
- Complete Reference of all Operators
- DDG Search Syntax
- Search Strings DB
- Other Dorking Resources

- https://chocolatey.org/
- PowerShell Doc: https://docs.microsoft.com/en-us/powershell/
- PowerToys: https://github.com/microsoft/PowerToys/releases/tag/v0.33.1