Unit 1 Test APCSP Flashcards
Computer
a machine that works with information
Input
receives the information and decides where it needs to go
Output
sends out the information to achieve the initial goal
Processing
processes the information to the output or storage
Storage
stores the information in the computer
Hardware
physical parts required for the computer to run
Software
set of instructions that allow the computer to perform tasks
Motherboard
Allows communication between all parts of the computer
CPU
Executes all commands for the computer
GPU
Displays what you can see, handles most heavy tasks
RAM
Temporary space for CPU to work
Hard drive
long-term space to be used
Bit
zero or one
Byte
consists of 8 bits
Decimal to binary
64 - 0100 0000
Binary to decimal
0010 0000 - 32
Overflow error
error from attempting to represent a number that is too large
Rounding error
Error from attempting to represent a number that is too precise. The value is rounded.
ASCII table
A code that goes along with certain numbers or letters or special characters that represent each pair to make up a code. Represented by binary numbers.
Abstraction
Between the actual message or picture to the binary numbers
Analog Image
Data with values that change continuously, or smoothly, over time. Some examples of analog data include music, colors of a painting, or position of a sprinter during a race.
Digital image
Data that changes discreetly through a finite set of possible values
Sampling
A process for creating a digital representation of analog data by measuring the analog data at regular intervals called samples.
Pixel
The tiny little dots that make up a picture
RLE
Combining different colors to make the colors that is needed with binary numbers in coding
Lossless compression
It compresses the original data and doesn’t lose data. This is used for more important information.
Lossy compression
It compresses the original data losing some of it in the process. This is used for unimportant information.
Intellectual property
Our own mind creation that we have created through our brain.
Copyright
What you might claim if you see your stuff somewhere else is that someone is claiming to be there’s and has used it without your permission.
Creative Commons
A claim that is held on your stuff to keep others from stealing and using your stuff without permission.
