Week 1 Flashcards
IT
The use of digital technology to store and process data into useful information.
Digital divide
Computer literacy skill gap between populations of people
What an IT specialist does
Makes sure an organization’s technology runs smoothly by: managing, installing, maintaining, troubleshooting, and configuring whatever is necessary and allowed by company policy to achieve that.
Computer
A device that stores and processes data by performing calculations.
Algorithm
A series of steps that solve specific problems.
Cryptography
The art of writing and solving codes
Binary
The communication a computer uses, also known as a base-2 numeral system.
Bit
A binary digit
Byte
A group of 8 bits.
Character encoding
Assigns our binary values to characters, so that we as humans can read them.
ASCII
The oldest character encoding standard out there. Stands for American Standard Code for Information Interchange.
UTF-8
The most prevalent encoding standard used today. It includes the ASCII table, but also allows a variable number of bytes to represent a character. It is built off of the Unicode standard.
Logic Gates
Allow transistors to do more complex tasks, like decide where to send electrical signals depending on logical conditions.
Abstraction
To take a relatively complex system and simplify it for our use.
Operating System
Allows hardware to communicate with the system.
