1. All the information that travels through your computer is based on two commands, which are on and off . The millions of combinations of those two commands given in series are what makes a computer work.
2. The power supply inside your computer sends electricity to all the components inside the computer to create an “on” signal . The memory chips inside the computer are divided into thousands of tiny compartments called bits . Each bit has an electronic switch or gate . On means the gate is open , which is read as the number 1 .
The computer reads off bits as 0.
3. Eight bits are grouped together to form a byte. The binary code depends on how the 1’s and 0’s within a byte are grouped.

4. Label the diagram to show how a computer converts data into binary code.
CPU Monitor
Keyboard
Binary Code
5. What does each abbreviation mean?
KB = kilobyte = about 1,000 bytes
MB = megabyte = about 1,000,000 bytes
GB = gigabyte = about 1,000,000,000 bytes
6. The number that comes before the abbreviations represent a computer’s memory capacity, or how many bytes of memory it has.
A 15 GB hard drive has 15,000,000,000 bytes for storing memory.

Challenge:
Each rectangle below represents one byte made up of 8 bits. Label the byte using a 1 for each white “on” bit and a
0 for each black “off” bit.
Remember … One byte = 8 bits