Binary Code
TRUE or FALSE?
Binary code is the simplest form of coding that a computer understands?
What is TRUE!
When people count, we use 1's, 10's, and 100's...
How is the counting different when using binary counting?
Everything is muliplied by 2
In ASCII coding: the light dots represent?
The dark dots represent?
The light dots represent: 1's or "ON"
The dark dots represent: 0's or "OFF"
When counting using binary or ASCII, what number do we always start with?
We start with 1
In the first activity we did in Unit 5, what were the 4 ways they represented the information they showed to us?
1. Pictures
2. Recipies
3. Nutritional Facts
4. Menus
Binary code is a way that computer users
can represent ____________?
What are NUMBERS?
The smallest number that can be represented in binary counting is called:
What is a BIT?
How are ASCII and Binary Coding DIFFERENT?
Binary represents NUMBERS
ASCII represents LETTERS
When you are reading a string/sequence of binary,
do we read it from left to right (like a book), OR do we read it right to left?
We read this string from RIGHT TO LEFT.
In the last activities we did together in Unit 5, we worked on binary and ASCII in pet records. Why is some information necessary to put into code at places like doctors' offices, dentists' offices, or veterinarians' clinics?
Various answers.
When using binary coding:
0's represent? ________
1's represent? ________
0's represent: off or no electricity going to that wire.
1's represent: on or electricity is going to that wire.
Every number can be represented when counting in binary; however, the higher the numbers go, the more __________ we need to be able to count higher.
What are bits or wires?
Back in history, exchanging information with other people was quite difficult before the invention of ASCII coding. Why did ASCII makes things much simpler and less expensive for computer users?
BEFORE ASCII, to exchange information, computer users had to have the EXACT same type of computer as the person they were trying to send it to. This could mean having 6 different types of computers if you needed to send information to 6 different users.
What is the largest number we can represent when using 5 bit binary?
What is 31
Tell TWO ways that representing data in various ways can help solve community problems.
True or False?
The purpose of Unit 5 is to show exactly why problem solving is essential in all aspects of Computer Science
What is ABSOLUTELY FALSE!
Every bit represents a number. Adding the numbers together will result in a letter having a _________ _____________
What is a BINARY NUMBER?
What are at least two specific ways that ASCII can be used?
Coding messages to save time
Puzzles and entertainment
16 8 4 2 1
🌫 ⬛ ⬛ 🌫 🌫
What is the binary number when you see this?
What is 19
How do "legends" help when looking at a coded card or piece of data ?
Legends can help a user know specifically what they are looking for or looking at to avoid confusion.
Fill in the blanks:
We need to be able to represent data in various ways so that it will be _______ for ________ to understand AND
it will be _____________ for computers to ____________ the data.
first and second blanks: easier for people to understand
third and fourth blanks: easiest for computers to process the data.
What is the LARGEST NUMBER that can be represented using 8 WIRES?
What is 255?
What does each letter of the acronym A S C I I stand for?
A= American
S= Standard
C= Coding
I= Information
I= Interchange
In the Code.Org video with Limor and Fredrico, they explained that with 8 bits, we can represent numbers up to 255. With 32 wires, we can represent numbers up to approximately what number?
Over 4 BILLION!
In one activity we did in class, you were able to use pictures of cats and dogs and bananas and cherries to represent code. How is it possible to be able to use pictures to represent binary coding?
Binary coding is represented by 0's and 1's; therefore, it is allowable to use any two icons, shapes, etc... to represent the 0's and 1's from binary code.