COURSERA GOOGLE IT SUPPORT: WEEK 1
Who created the first algorithm?
Ada Lovelace, a mathematician
Logic Gates
Allow our transitiors to do more complex tasks like deciding where to send electrical signals depending on logical conditions
Operating System
Allows hardware to communicate with the system
What does ASCII stand for and what does it represent?
American Standard Code for Information Interchange represents English alphabet,digits, and punctuation marks
Transitors
An upgrade from vacuum tubes, fundamental to all electronic devices, and was compact
Xerox
First computer that: looked like a computer, had a graphical interface that used icons, and had a mouse and window
ENIAC
First general purpose computer that had 17,000 vacuum tubes and took up 1800sqft of floor space
What are the four main layers of a computer?
Hardware, software, operating system, and users
Software
How we as humans interact with our computer
What does IT stand for? Define it.
IT(Information technology)- the use of digital technology such as computers and internet, to store and process data into useful information
Users
Interacts with the computer
Why did UTF-8 replace the ASCII character-encoding standard?
UTF-8 can store a character in more than one byte
What is the projection growth of IT jobs in the US by the next decade?
12%
What is the highest decimal value we can represent with a byte
255
How many possible values can we have with 8 bits?
256
Compiler
A computer program created by Admiral Grace Hopper to translate human language to machine code
Computer
A device that stores and processes data by performing calculations
Alan Turning
A mathematician who created Enigma
Base 10 System
A place-value number system that uses a base of 10 and the digits 0 through 9.
Digital Divide
A result of one's lack of computer literacy skills due to possible economic or sociological reasons
What is the oldest encoding standard?
ASCII
Analytical Engine
Another device made by Charles Babbage to calculate using punch cards
What did Steve Jobs and Steve Wozniak create?
Apple 1
Character Encoding
Assigns our binary values to characters so that we humans can read them
What was the first arcade to take coins?
Atari "pong" in 1972
Which of these is a valid byte? Check all that apply. A. 11100 B. 10022 C. 0000000 D. 1101011
C and D
Charles Babbage
Created the Difference Engine to perform more complex calculations
Abacus
Earliest known computer(500BCE) to count large numbers
UTf
Main encoding standard used to make emojis
Hardware
Physical components of computer(physically hold)
What is the RGB color model and what does it stand for?
Red Green Blue are the colors that are used to make different variations of colors
Algorithm
Series of steps that resolve a problem
What are the roles of an IT Specialist
To ensure a business's technology runs smoothly. Some tasks may include managing, installing, maintaining, troubleshooting, or configuring office and computing equipment
Abstraction
To take a relatively complex system and simplify it to our use
Decimal System
Used to help us figure out what bits our computer can use
Loom
Was created by Joseph Jacquard to weave yarn to fabric using punch cards
Mechanical Calculator
Was created with gears and levers by Blasius Pascal in the 17th century to perform small calculations
Cryptography
the art of writing or solving codes.
