Information in Computers

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Presentation transcript:

Information in Computers

Files and Folders

What about storing them on computers If everything is uniquely named, a matter of convenience If want to re-use names? Best practice for web pages is to always use the same name for the first page

On a computer Files are the content Folders are the holders Files always have extensions Tells the computer what is in it Remember: everything is bits! Folders are the holders Folders can have folders inside them As many times as you want

The file types that you will be using .html -- the instructions that structure the web page .css -- the instructions that let you format the page .jpg, .jpeg, .gif, .png, … -- pictures Folders “extension” is / What is on the other side of the / is contained in the folder It can another folder or a file Never use a “.” in a folder name Better not to use spaces

Navigating to a file If it in the same folder: page.html If it is in a subfolder folder/page.html or ./folder/page.html

Saving files on your computer COMP101 (This will mirror public_html/COMP101 on isis) In COMP101, folder for every assignment and project and some labs

Filezilla layout Your computer Isis server No Magic. You need to move files between them. Drag and Drop.

Colors

Colors – Paint (Subtractive Color Model) Primaries: magenta, yellow, and cyan This color system is called subtractive because: each primary color absorbs (subtracts) a certain part of the color spectrum. every time a color is added, less light is reflected. When you mix all three primaries together, the entire spectrum of color is absorbed, and we’re left with black. Does anyone know the primary colors?

Colors - Lights (Additive Color System) Primaries: Red, Blue, Green Additive color systems start without light (black). Light sources combine to make a color. As colors are added, the resulting color is brighter. The primary colors are different for computers

Colors (colorpicker.com) We’ll be working with the additive color system Mix various amounts of red, green, and blue to create a color. Colors can be represented by rgb (red#, green#, blue#) Each color is indicated by a number from 0-255 (0,0,0) = black (255,255,255) = white