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