AP Comp Sci - Big Idea 4- 4.1 Abstraction Lvls

I can describe and create logic circuits, binary data, and explain how the use of data abstraction manages the complexity of a program.

Applications

Any app or game or software or website. The user is still giving the user instructions, it’s just not in code. The instructions are through clicks and buttons.

Algorithms & Procedures

Once you organize coding commands in a way that they work together to accomplish a goal, you get procedures and algorithms. Put these together and then you get apps.

High Level Language

make things easier for the user to code. This usually means something like Scratch, where you just have to drag in blocks.

Low Level Language

harder and require the user to type in commands and make their own loops and procedures and objects.

Machine Code

Programming languages get translated into another language that the computer can understand and eventually give out instructions to hardware

Instruction Chip Architecture

This is hardware that takes instructions and gives them to different logic gates, registers, and circuits.

Logic Gates and Registers

allow circuits to flow according to conditions. These conditions could require many inputs to produce an output.

Transistors

where the computer binary process begins. They either are on and allow electrons to move through, or off and don’t allow electrons to move through.

Physics

In the end physics controls why electrons move and how they move. This also deals with what happens in the quantum level where electrons can behave in other ways.

Low Abstraction vs. High Abstraction

One hides details to focus on the "what" (simplicity/big picture), while the other reveals details to focus on the "how" (complexity/control).