Binary Code: (or "How A Computer Communicates")
2. Let's start out simply. Before you are too hard on your computer...how slow it is, etc...write your name (first and last) in ITs language. (If you have time, you can even add an inspirational quote with it!) Above is a list of the letters you will need, with their binary code representation:
3. Here's some other binary number activities. (You will need a set of cards to cut out, and a piece of paper to record your information.)
a. A new way to count (Worksheet A)
b. How binary works (Worksheet B)
c. Using binary to figure out a secret code (Worksheet C) Semester 2 do the SuperBowl one
d. So far, we have been using 5 binary cards. If you were going to make the next card in the sequence, how many dots would it have? What about the card after that? What is the rule you follow to make the new cards? As you can see, only a few cards are needed to count up to some very big numbers! Add all of the numbers together, and what do you get?
e. Playing with Another interesting property of binary numbers.
F. Summing it all up.
Computers today use the binary system to represent information. It is called binary because only 2 different digits are used (0-1). Each 0 or 1 is called a "bit" (binary digit). A bit is usually represented in a computer's main memory by a transistor that is switched on or off, or a capacitor that is charged or discharged.
When data must be transmitted over a telephone line , high and low pitched tones are used for the ones and zeros. On magnetic disks, bits are represented by the north/south direction of the coated surface. On audio CDs or DVDs, the bits are stored optically. That means the part of the surface corresponding to a bit either does or doesn't reflect light.
The ZEROS all represent the absence of circuit (light, intensity, electricity, etc). The ONES depend on their location in a line of 0's and 1's to determine the intensity in which the circuit occurs. They start at 1 and double themselves with each from right to left (1,2,4,8,16,32,64,128, 256, etc.) These different intensities give us the huge amounts of numbers humans can use to represent not only numbers, but letters, shapes, symbols, colors, sound, and commands.
One bit on its own can't represent much, so they are usually grouped by at least eights. These can represent numbers from 0 to 255. A group of 8 bits is a BYTE.
Ultimately bits and bytes are all that a computer uses to store and transmit numbers, text, and all other information. (Computer Science Unplugged)
G: "Bonus-Bonus Worksheet": How we get the amount of 0-1 and placement of those to represent a number. This BEANZ article will show you the number value of many letters and numbers AND then show you how to translate that into binary bytes. At the end, there is a "Bonus Bonus" puzzle to do. If you finish early, feel free to go to the Sudoku article or the "learn More" links at the bottom of the BEANZ page.
H: How we get that number to represent a letter, number, symbol, color, etc. (Better known as the ASCII system) Here is a simple ASCII list of letters.
I. The ABC's in Base 2 or Binary (click the "binary numbers" tab at the top, and it may help you read Mrs. Iron's clock)
J. Binary to Text converter. (Notice there are other table converters too!
K. ASCII to decimals (or numbers to be made into binary bytes)
3. Here's some other binary number activities. (You will need a set of cards to cut out, and a piece of paper to record your information.)
a. A new way to count (Worksheet A)
b. How binary works (Worksheet B)
c. Using binary to figure out a secret code (Worksheet C) Semester 2 do the SuperBowl one
d. So far, we have been using 5 binary cards. If you were going to make the next card in the sequence, how many dots would it have? What about the card after that? What is the rule you follow to make the new cards? As you can see, only a few cards are needed to count up to some very big numbers! Add all of the numbers together, and what do you get?
e. Playing with Another interesting property of binary numbers.
F. Summing it all up.
Computers today use the binary system to represent information. It is called binary because only 2 different digits are used (0-1). Each 0 or 1 is called a "bit" (binary digit). A bit is usually represented in a computer's main memory by a transistor that is switched on or off, or a capacitor that is charged or discharged.
When data must be transmitted over a telephone line , high and low pitched tones are used for the ones and zeros. On magnetic disks, bits are represented by the north/south direction of the coated surface. On audio CDs or DVDs, the bits are stored optically. That means the part of the surface corresponding to a bit either does or doesn't reflect light.
The ZEROS all represent the absence of circuit (light, intensity, electricity, etc). The ONES depend on their location in a line of 0's and 1's to determine the intensity in which the circuit occurs. They start at 1 and double themselves with each from right to left (1,2,4,8,16,32,64,128, 256, etc.) These different intensities give us the huge amounts of numbers humans can use to represent not only numbers, but letters, shapes, symbols, colors, sound, and commands.
One bit on its own can't represent much, so they are usually grouped by at least eights. These can represent numbers from 0 to 255. A group of 8 bits is a BYTE.
Ultimately bits and bytes are all that a computer uses to store and transmit numbers, text, and all other information. (Computer Science Unplugged)
G: "Bonus-Bonus Worksheet": How we get the amount of 0-1 and placement of those to represent a number. This BEANZ article will show you the number value of many letters and numbers AND then show you how to translate that into binary bytes. At the end, there is a "Bonus Bonus" puzzle to do. If you finish early, feel free to go to the Sudoku article or the "learn More" links at the bottom of the BEANZ page.
H: How we get that number to represent a letter, number, symbol, color, etc. (Better known as the ASCII system) Here is a simple ASCII list of letters.
I. The ABC's in Base 2 or Binary (click the "binary numbers" tab at the top, and it may help you read Mrs. Iron's clock)
J. Binary to Text converter. (Notice there are other table converters too!
K. ASCII to decimals (or numbers to be made into binary bytes)