Wednesday, September 16th

• Warm Up: Write down how you would explain binary code to someone who had never heard of it before

• What is this number written in binary code? Now translate it from binary code to a number. Off Off On On Off On Off Off.

• Today …• Please open Intel and Binary assignments• review binary code assignment• Review Intel assignment• Practice Quiz• Flow Charts

Binary Code• Off Off On On Off On Off Off.• 0010100• Translate:• 0* 1• 0* 2• 1*4• 0*8• 1*16• 1*32• 0*64• 0*128• Value = 52

Binary Answers• What are the two numbers that computers understand? 0, 1

• If those two numbers are represented by lightbulbs, what is the value assigned to a bulb that is not turned on? Zero

• What would be another way to write this: On Off On On Off? 10110• What is the value of the binary number 101? 1100101• If you convert your name to binary using the encoder, what is the

result?• If you convert a 5-letter word to binary, how many digits does the

result have? 40 (every letter is represented by 8 numbers)

WHAT DOES MRS. HASSELD MEAN WHEN SHE SAYS COMPUTERS ARE

DUMB???

Company Logo

INPUT DEVICES

• Microphone• Keyboard• Mouse• PC Camera• Scanner

OUTPUT DEVICES

• Speakers• Monitor• Printer

STORAGE DEVICES

• RAM• ROM• Hard Drive• Floppy Drive• Optical Storage

PROCESSING DEVICES

• Microprocessor• Motherboard

RAM AND ROM

• RAM – Random Access Memory– Temporary– Like opening the books on your desk

• ROM - Read Only Memory– Permanent storage– Long term– Contains the computers instructions– Doesn’t accept new information

Microprocessor vs embedded processor

• Embedded processor – made for one specific function

• Microprocessor – bigger, more general, used by a computer for many functions

Transistor

• Microscopic electronic switch• Turns on and off• Part of an integrated circuit within a

computer• Amplifies and switches electronic signals

Pixels

• Dots on your computer screen• Red, green or blue• VGA (video graphic array) translates the

binary code into color combinations• 96 pixels per inch

What Is a Microprocessor ?

• CPU or central processing unit• Smaller than a hair• Integrated circuit• Often called the “brains”

Functions of a Microprocessor

• Fetch – get instructions from memory• Decode- figure out what the instructions

mean• Execute – perform the instructions