The Hour of Code!

You Were a Part of the Largest Learning Event in History!

Key Terms

  • Algorithm: A series of instructions on how to accomplish a task
  • Coding: Transforming actions into a symbolic language
  • Debugging: Finding and fixing problems in code
  • Function: A piece of code that can be called over and over
  • Parameter: Extra bits of information that you can pass into a function to customize it

Numbers & Letters

  • Binary Code 0's & 1" or "on & off"
  • ASCII Code
  • Unicode

What About Color and Animation?

Picture Element: PIxel

Pix = Pictures

El = Element

Pixels by Patrick Jean

Bits Per Pixel: 1 for "On", 0 for "Off"

How Many Pixels per Bit?

1 Bit Image = ?

8 Bit Image = ?

16 Bit Image = ?

32 Bit Image = ?

*often you hear pixels described in 24 bits which is is really 32 bits in true color and that is 16,777,216 or 256 x 256 x 256

File Size or disk space

1 byte = 8 bits
1 Kbyte = 1000 bytes
1 Megabyte = 1000 Kbytes (1,000,000 bytes)
1 Gigabyte = 1000 Megabytes (1,000,000,000 bytes)
1 Terabyte = 1000 Gigabytes (1,000,000,000,000 bytes)
Big image

Compression

  • mp3, jpeg, etc..
  • patterns within the data to reduce the amount of storage

Pong, Tetris, Minecraft

Highly pixelated OR Basic pixel games