Unit 1. Flashcards
Input
To put data into a computer
Output
When a computer supplies data
Storage
Data is saved in a device
Processing
A computer receives information and presents it
Computer
An electronic device that stores and processes data
CPU
The main processor of a computer (brain)
GPU
Graphics Card, helps presenting data (muscles and eyes)
Hard Drive
Main storage (Long term memory)
RAM
Random access memory (Short term memory)
Motherboard
Circuit board (Nerves)
Hardware/ Software
Hardware: Physical components of a computer
Software: Digital components of a computer
Bit/ Byte
Bit: = 0/1
Byte: 8 bytes
How do you convert decimal to binary?
How do you convert binary to decimal?
Perfect squares
Overflow
A computer receives a number it can’t process because it’s too large
Rounding Error
A mathematical error
What is the ASCII Table
The character encoder all computers use.
Abstraction
Used to hide background detail so that the reader only sees required detail
Pixel
A single illuminated area on the screen (very small)
Sampling Frequency
Defines the number of samples per second
Analog vs. Digital Images
Set binary signals to set digitize an image.
RLE
Run length encoding to make a digital image
Lossless Compression vs. Lossy Compression
Depending on the context a computer will compress an image to sacrifice detail in order to send the image faster
What is Intellectual Property?
An idea that you created and own
Copyright
the exclusive legal right, given to an originator or an assignee to print, publish, perform, film, or record literary, artistic, or musical material, and to authorize others to do the same
Creative Commons
A public dedication tool
