AP CSP Unit 1

Bit

a digit in binary

Byte

a string of 8 bits

Binary

A way of representing numbers using only two numbers repeatedly (0&1)

Overflow Error

error that happens when data cannot fit in the number of bits available to represent it

Round-off Error

error that happens when a computer performs calculations with real numbers because most decimals and negative numbers cannot be represented through binary

Analog

something with continuous representation

Analog Data

Analog Image

made with traditional tools and media

Digital Data

Sampling

a process of choosing how small to make the section of the picture we look at when deciding whether to make it black or white

Lossless Compression

data compression technique that allows the original data to be reconstructed perfectly after being compressed; uses patterns

Lossy Compression

data compression technique that gets rid of details in data to compress it

Copyright

give exclusive legal rights to decide how to copy, distribute, display, etc. your work

Fair use

can use copyright material for personal use if you don’t have any gain

Public Domain

after copy right is up the work can be used by the public

Intellectual Property

any type of work or invention as a result of creativity

Abstraction

hides details but gives the ability to look at problems at a higher level

Algorithm

a series of steps to solve a problem that will work everytime

Heuristic

general approach to a problem where you may not get the same answer every time