A draft of the first lesson in a unit related to Computer Hardware from CT 2104

1. Bits, Bytes, and Storage

2. How can we relate to the terms Bits and Bytes? “This computer has a 64-bit processor with 4 Gigabytes of RAM and 200 Gigabytes of hard disk space” “My parents played Atari (8-bit) and I play Nintendo (64-bit)”

3. Key Terms Bits Bytes Binary numbers All of the prefixes related to storage KB MB GB TB

4. Bit bit = From a shortening of the words “binary digit” the basic unit of information for computers 1 or 0 are the only values

5. Byte Byte = 8 bits Each keyboard character is stored as a Byte Example  A = 01000001

6. This is an excellent diagram

7. Text to binary conversionhttp://www.digitalcoding.com/tools/text-to-binary-conversion.html 010101000110100001100101001000000110110001100101 011000010110011001110011001000000110101101101001 011000110110101101100101011001000010000001110011 011011110110110101100101001000000100100001100001 011000100010000001100001011100100111001101100101 001000000110110001100001011100110111010000100000 0110111001101001011001110110100001110100 The Leafs kicked some Habarse last night

8. How does a computer processor understand bytes???? The processor is made of zillions of Transistors. Transistor on = 1 Transistor off = 0

10. Switch on = 1

11. Switch off = 0

12. The ”A” exists as a pattern in eight transistors, where some are “turned on” (charged) and others are not.

14. UNITS  Big & Way Big Bytes Byte a grouping of eight bits for instance --> 0110 0001 Kb (kilobyte) about 1000 bytes Mb (megabyte) about one thousand Kb or one million bytes Gb (gigabyte) about one thousand Mb or one billion bytes Tb (terabyte) is about one thousand Gb or one trillion bytes

15. Terms for Storage Capacities 1 bit = 0 or 1 (b) 8 bits = 1 byte (B) 1 thousand bytes = kilobyte (KB) 1 million bytes = megabyte (MB) 1 billion bytes = gigabyte (GB) 1 trillion = terabyte (TB)

16. A file with size = 201 Bytes

18. MB of data GB of data

19. Terabytes = a trillion bytes