WEEK 1 CLASS 2 OBA 340 Fall 2015

WEEK 1 CLASS 2 OBA 340 Fall 2015 OBA 340 YIN 1

SCHEDULE Ch. 5 Moore’s law HTML tutorial OBA 340 YIN 2

CH. 5 MOORE’S LAW AND MORE: FAST, CHEAP COMPUTING, DISRUPTIVE INNOVATION, AND WHAT THIS MEANS FOR THE OBA 340 YIN 3

ICLICKER Did you read chapter 5? A. Yes, the whole chapter B. Yes, some of it C. Not at all OBA 340 YIN 4

SOME DEFINITIONS Moore’s Law • Chip performance per dollar doubles every eighteen months Microprocessor • Part of the computer that executes the instructions of a computer program Random-access memory (RAM) • Fast, chip-based volatile storage in a computing device Volatile memory • Storage that is wiped clean when power is cut off from a device 5 -5

SOME DEFINITIONS Nonvolatile memory • Storage that retains data even when powered down Flash memory • Nonvolatile, chip-based storage Solid state electronics • Semiconductor-based devices (no moving part) Semiconductors • Substance such as silicon dioxide used inside most computer chips that is capable of enabling and inhibiting the flow of electricity Optical fiber line • High-speed glass or plastic-lined networking cable used in telecommunications 5 -6

ADVANCING RATES OF TECHNOLOGY Change in Technological Capabilities by Year 300 250 200 150 100 50 0 0 1 Optical Fiber (bits per second) 2 3 4 Data Storage (bits per square inch) 5 6 Moore's Law (number of transistors

ICLICKER Moore’s Law originally stated that chip performance per dollar doubles every twelve months. A. True B. False OBA 340 YIN 8

ICLICKER Which of the following is an example of volatile memory? A. Random-access memory B. Flash memory C. Optical disk drive D. Nanodrive E. Read-only memory OBA 340 YIN 9

ICLICKER Solid state components are less likely to fail because they: A. are driven by precise sets of software instructions. B. have the capability to both enable and inhibit the flow of electricity. C. have no moving parts. D. are composed of germanium instead of silicon. E. contain storage that retains data even when powered down. OBA 340 YIN 10

ICLICKER Which of the following is solid state? A. an i. Pod shuffle B. a Ti. Vo DVR C. a typical laptop PC’s hard drive D. All of them E. None of them OBA 340 YIN 11

WHAT IS IN A COMPUTER? OBA 340 YIN 12

AN ANALOGY BETWEEN A COMPUTER AND A KITCHEN? CPU Chef Memory Stove Hard drive Refrigerato r OBA 340 YIN 13

ICLICKER What makes a computer run fast? A. Fast CPU B. Lots of RAM C. Big hard drive D. Both A and B E. All A, B, and C OBA 340 YIN 14

SIZING THE DATA qbit vs. Byte: 1 Byte = 8 bits q 1 bit: 0 or 1 q 1 Byte: 0 – 255 q 1 Byte for 1 character q. ASCII OBA 340 YIN 15

YOU DON”T NEED TO KNOW THIS FOR EXAM SIZING THE DATA Number of pixels = Rows x columns q 1 pixel (color depth) E. g. 4000 pixels per row x 3000 rows q 1 bit: black/white monochrome = 12 Mega pixels q 8 -bit: q 16 -bit 12 Mega pixels x 24 bits per pixel = 36 Mega Bytes (MB) Maybe 3 -4 MB after compression OBA 340 YIN 16

YOU DON”T NEED TO KNOW THIS FOR EXAM SIZING THE DATA Audio consists of digital samples of sound § A typical mp 3 song several Mega Bytes § sampling rate e. g. audio CD 44. 1 KHz (44100 samples per second) § bit depth, channels per sample e. g. 16 -bit, 2 § combined called bit-rate 44. 1 x 16 x 2 = 1411. 2 Kbps (uncompressed) OBA 340 YIN 17

SIZING THE DATA q Blu-ray disc: 25 -50 GB q Feature DVD movie: 4 -7 GB q Digital picture: KB – MB q Document: KB § Hard drive 500 GB – 2 TB § RAM 4 -16 GB § CPU GHZ § Network speed Mbps OBA 340 YIN 18

ICLICKER 1 _____ = 1 billion bytes A. terabyte B. gigabyte C. megabyte D. petabyte E. zettabyte OBA 340 YIN 19

ICLICKER A good quality 12 M-pixel digital photo’s size can be best measured in ___ while a typical mp 3 song’s size in ___. A. MB; KB B. MB; GB C. KB; GB D. KB; MB E. MB; MB OBA 340 YIN 20

INTERNET OF THINGS v. Vision of embedding low-cost sensors, processors, and communication into a wide array of products and the environment Allow a vast network to collect data, analyze input, and automatically coordinate collective action http: //online. wsj. com/articles/light-bulbs-get-smarter-but-not-easier-1411495549 OBA 340 YIN 21

INTERNET OF THINGS https: //www. yahoo. com/tech/grush-iphone-app-makesbrushing-teeth-fun-for-kids-82289486711. html OBA 340 YIN 22

INTERNET OF THINGS http: //www. amazon. com/Withings-Wi. Fi-Body-Scale-Black/dp/B 002 JE 2 PSA OBA 340 YIN 23

http: //www. wsj. com/articles/bag-tags-1435340070 OBA 340 YIN 24

QUESTION What devices do you or your family own that contain microprocessors? OBA 340 YIN 25

FROM CES 2015 https: //www. yahoo. com/tech/the-6 -most-ridiculous-connected-devices-except-107239764774. html OBA 340 YIN 26

BRINGING BRAINS TOGETHER Supercomputers: Computers that are among the fastest of any in the world at the time of their introduction q. Supercomputing was once considered the domain of governments and high-end research labs q. Modern supercomputing is done by massively parallel processing q. Massively parallel: Computers designed with many microprocessors that work together, simultaneously, to solve problems 5 -27

BRINGING BRAINS TOGETHER Grid computing: Uses special software to enable several computers to work together on a common problem as if they were a massively parallel supercomputer Cluster computing: Connecting server computers via software and networking so that their resources can be used to collectively solve computing tasks 5 -28

BRINGING BRAINS TOGETHER Software as a service (Saa. S): Form of cloud computing where a firm subscribes to a third party software and receives a service that is delivered online Cloud computing: Replacing computing resources with services provided over the Internet Server farms: Massive network of computer servers running software to coordinate their collective use Latency: Delay in networking and data transfer speeds Low latency systems are faster systems 5 -29

ICLICKER Which of the following is an example of cloud computing? A. Google Drive (previously Google Doc) B. Facebook C. i. Tune store D. Blackboard E. All of the above OBA 340 YIN 30

HARVARD SCIENTISTS SEND THE FIRST TRANSATLANTIC SMELL VIA IPHONE https: //www. yahoo. com/tech/harvard-scientists-send-thefirst-transatlantic-smell-89078729859. html OBA 340 YIN 31

http: //www. bbc. com/news/technology-25647918 OBA 340 YIN 32

MIT's shapeshifting display lets you reach out and touch someone http: //www. theverge. com/2013/11/13/ 5098926/mit-inform-dynamic-shapedisplay-video OBA 340 YIN 33

Printing Makeup From Your Inkjet http: //www. businessweek. com/arti cles/2014 -09 -18/printing-makeupfrom-your-inkjet-custom-cheap-diy OBA 340 YIN 34

http: //techcrunch. com/2015/09/28/smart-homes-need-smart-communities/ OBA 340 YIN 35

http: //research. gigaom. com/2013/11/technology-is-easycreating-innovative-business-models-is-hard/ OBA 340 YIN 36

HTML TUTORIAL OBA 340 YIN 37

W 3 SCHOOLS HTML TUTORIAL (ON YOUR OWN) HTML Introduction HTML Editors HTML Basic HTML Elements HTML Attributes HTML Headings HTML Paragraphs HTML Comments HTML Links HTML Head HTML CSS HTML Images HTML Tables HTML Lists HTML Blocks HTML Layout HTML Entities HTML Symbols HTML Charset HTML URL Encode HTML XHTML OBA 340 YIN 38

FISHCREEK EXAMPLE q Very similar to assignment 1 q Completed pages are available on Canvas q Try follow step-by-step using Visual Studio q If not able to follow, just copy and paste from completed pages but make sure you understand OBA 340 YIN 39