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.