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    C 4 C 4 Presentation Transcript

    • Introduction to Computers CLASS 4
    • Let’s review - work together1. What does GUI mean? Name 5 GUIs.2. What does URL mean? Protocol? Top level domain?3. Name four phases of a meme. Now name four memes.4. What do these acronyms mean? BZ - H&K- IM2BZ2P - IRL - meh5. What do each of the following Google modifiers mean? “ ” OR ~ -6. What word can you type into Google to help you: a. find the time in New York City b. see definitions of the word “integrated”. c. find out how many yards are in a kilometer d. calculate the square root of 1024
    • More ReviewAnswer these questions. Work together.1. “I WANTS 2 STUDY ENGLISH” is an example of what?2. What numbering system do humans use to count?3. What numbering system do computers use to count?4. .jpg, .html, .doc, are examples of what?5. What’s a scrollbar? Desktop? Submenu? System tray?6. What are your 3 favorite chat acronyms?7. What are each of the following websites used for? a. theurbandictionary.com b. speaklolcat.com c. tealit.com d. knowyourmeme.com
    • More ReviewAnswer these questions. Work together.1. “I WANTS 2 STUDY ENGLISH” is an example of lolspeak2. Humans use a decimal, or base ten system.3. Computers use a binary system.4. .jpg, .html, .doc, are examples of file extensions.5. What’s a scrollbar? Desktop? Submenu? System tray?6. What are your 3 favorite chat acronyms?7. What are each of the following websites used for? a. theurbandictionary.com b. speaklolcat.com c. tealit.com d. knowyourmeme.com
    • 1) Current time in London. ________________________________Work 2) Results specifically mentioning the deep blue sea.together. ________________________________Write down the 3) 123456 in binary.instructions on theright. You and your ________________________________group have ten 4) Results for different variations of tennis shoesminutes to complete ________________________________each of the followingsearches. 5) Results for women named Hillary who are not Hillary Clinton.When you arefinished, write down ________________________________the search terms you 6) Definition of the word circuit.used to get your ________________________________results. 7) 5 * 8 + 83 - 16 / 2 = ? _______________________________
    • 1) Current time in London.Work time londontogether. 2) Results specifically mentioning the deep blue sea. “the deep blue sea”Write down theinstructions on the 3) 123456 in binary.right. You and your 123456 in binary (123 456 = 0b11110001001000000)group have ten 4) Results for different variations of tennis shoesminutes to completeeach of the following ~tennis shoessearches. 5) Results for women named Hillary who are not Hillary Clinton.When you arefinished, write down Hillary -Clintonthe search terms you 6) Definition of the word circuit.used to get yourresults. definition circuit 7) 5 * 8 + 83 - 16 / 2 = ? 5 * 8 + 83 - 16 / 2 (115)
    • Moore’s Law THE NUMBER OF TRANSISTORSUSING THE SAME AREA ON A CHIPDOUBLES EVERY 18-24 MONTHS
    •  Gordon Moore is the co-founderWho is this of Intel - they make computerguy? chips. A lot of computer chips.  Back in 1965 he estimated that the number of integrated circuits (switches) that could be put on a computer chip would double about every two years. Grandpa Moore
    •  With chips betting smaller and smaller, the amount ofBytes and bits information they can store increases  BInary digiT = BIT  8 bits make a Byte: 0 = 00000000 1 = 00000001 2 = 00000010 ... 254 = 11111110 255 = 11111111 You can count up to 256 this way (you count the zero)
    •  When you start talking about lots of bytes, you get into prefixes like kilo, mega and giga:Bytes kilobyte = KB = 2^10 = 1,024 bits megabyte = MB = 2^20 = 1,048,576 bitskilobytes gigabyte = GB = 2^30 = 1,073,741,824 bitsmegabytes terabyte = TB = 2^40 = 1,099,511,627,776 bitswhatabytes? petabyte = PB = 2^50 = 1,125,899,906,842,624 bits  That’s a lot of big numbers. Most people just remember: Kilo = thousand 1,000 Mega = million 1,000,000 Giga = billion 1,000,000,000 Tera = trillion 1,000,000,000,000 Peta = quadrillion 1,000,000,000,000,000 (Peta is also the old greek word for “monster”) The word “Google” comes from “googol” 1 with 100 zeros: 10,000,000,000,000,000,000,000,000,000,000,000,000, 000,000,000,000,000,000,000,000,000,000,000,000,000, 000,000,000,000,000,000,000,000
    •  Because so much data can be kept in such a small space, storageEvolution of devices and computers havestorage gotten better, faster and cheaper.  Here are some examples: The software that powers the space shuttle runs on a single MB of RAM (memory). The minimum RAMsource: requirement for Windows 7 is 1 GB ( 1,000 MB).http://www.english4it.com/reading/44
    • Evolution ofstorage The CPU (Central Processing Unit - the brain) of Apples iPhone 4 is more powerful than a supercomputer costing millions of dollars in the 1970s A floppy disk in the 1970s held 90 KB of data. The current highest capacity flash drive on the marketpartial source:http://www.english4it.com/reading/44 holds 256 GB (almost 3,000,000 of those disks)
    •  The computer and electronic equipment thatWhat you seems so cool right now will probably seem oldshould and silly by the time you graduate.remember  Computers can save twice as much data and run twice as fast approximately every two years.  A byte “B” is eight bits, “b”.  The prefixes: Kilo = thousand 1,000 Mega = million 1,000,000 Giga = billion 1,000,000,000 Tera = trillion 1,000,000,000,000 Peta = quadrillion 1,000,000,000,000,000 KB = kilobyte MB = megabyte GB = gigabyte TB = terabyte PB = petabyte
    • Sound Effects
    • What is sound? Sound is a vibration ( 振動 ) or wave of molecules caused by the motion of an object. Sound is produced when an object moves or vibrates. Without movement there could be no sound. When an object moves or vibrates, the molecules around the object also vibrate.
    • How fast does sound travel?• It depends.• At sea level the speed of sound is about 344.4 meters per second.• Water conducts sound faster than air – in fresh water, sound travels at about 1497 meters per second at 25 °C.• Because sound is the vibration of molecules, there is no sound in space. So if you yell on the moon, no sound will come out.
    • Age differences Not everyone can hear the same noises. Your ability to hear certain sounds gets worse as you get older. Listen to this: http://www.youtube.com/watch?v=IrewnzQYrPI
    • Sound Effects• Sound effects are really important in TV, radio, and movies. They help us understand what is happening, and give us clues about what is happening.• Sound effects are used so often that we usually don’t even notice them.• To add the sound effects into shows and movies, a special sound engineer called a Foley artist is needed.
    • Foley artists Nearly all the sounds you hear in movies were not recorded during filming.For example, if you see a scene of someone walking through the snow, the sound of walking through snow is recorded later and added to the movie – this is done by a Foley artist.youtube: http://www.youtube.com/watch?v=UNvKhe2npMM
    • The most famous sound effect in history• First used in a movie in 1951.• The sound was recorded and added to the movie later.• It was then reused in a movie in 1953, where it got its name.• In the 1970s, two film students noticed this sound being used over and over again.• Later, they worked in movies, and put it into films they were working on – mostly as a joke for their friends.
    • Whilhelm examples• The first movie it was used in.• http://www.youtube.com/watch?v=dc5F2C0CYlA• The second movie, where it got its name.• http://www.youtube.com/watch?v=cdbYsoEasio• Many examples• http://www.youtube.com/watch?v=4YDpuA90KEY&feature=related• A video history• http://www.youtube.com/watch?v=_PxALy22utc
    • Are you ready to join Twitter?
    • 1  Go to www.twitter.com  Click on ‘English’ at the bottom of the page
    • 2  Full Name allows people to find you on Twitter  Username is what appears each time you Tweet - It will be your Twitter identity!  Enter a Password you’ll remember easily  Enter your Email address
    • 3  You’ll receive a Confirmation Email from Twitter  Go to your email account (the one you stated in the previous step)  Follow the link in the email to confirm your account.  Write your twitter username on the board so others know how to look for you.  Go back to Twitter, search for “lesdavyteacher” and follow me.  Follow each other! Your assignment is to follow at least 10 of your classmates.  You are each required to make at least 2 posts by next week. Tell us:  Something you really like  Something you really dislike  Anything else you want to talk about
    • 5 • • Spice up your Twitter Profile! Click on Settings on the top right corner of the page • Click on the Profile tab • Upload your picture - No one wants to talk to a faceless person! • Write a few lines about yourself
    • You are ready to start Tweeting!