Data Hierarchy - created from Mind Map

Seite 1

bit

composed of either 1s or 0s

Character Set

all computer actions

Unicode

Fields

ASCII

supports most languages and emojis

Records

One field is chosen as a record key

Files

viewed as sequences of bites

Database

Tables

are groups of related records

relational database

can be searched and sorted

Big Data

apps dealing with lots of data

composed of both records and files

used by relational databases

bit examined

bit set

bit reversed