Technology, History, Issues
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1 Technology, History, Issues Advances of Computer Technology Today s Ubiquitous Computing Landscape Dramatic Impacts New Social, Legal, and Ethical Issues Sources: Baase: A Gift of Fire, Quinn: Ethics for the Information Age Pictures from Wikipedia Slides from Prof. Jingke Li Textbook: Chapter 1 Introduction 1
2 History of Computers It s a story of hardware advances: Pre-Generation (40s & before) --- Mechanical 1st Generation (late 40s) --- Vacuum Tubes 2nd Generation (late 50s) --- Transistors 3rd Generation (60s) --- Integrated Circuits 4th Generation (since 70s) --- VLSI 5th Generation ---? CS305-Spring 2010 Introduction 2
3 Rapid Advances Components CPUs Hard Drives Memory Computer Systems ENIAC Mainframes Servers Supercomputers Microprocessors PCs CS305-Spring 2010 Introduction 3
4 Advances of CPUs CS305-Spring 2010 Introduction 4
5 Advances of Hard Drives IBM 350 Disk Storage Unit: The first hard-disk drive, introduced in 1956 as data storage for the IBM accounting computer, 305 RAMAC 5ft long, 5ft 8in high, and 2ft 5in deep; weighed 600lbs Capacity: 5 million characters (~5MB) Today: 1TB portable drive CS305-Spring 2010 Introduction 5
6 Advances of Memory Drum memory (50s) Core memory (60s) Integrated silicon RAM chips (70s) Today: 4GB RAM is common place 2K core mem, 16 16cm CS305-Spring 2010 Introduction 6
7 ENIAC The first general-purpose, programmable digital computer. Built in 1946 Contained 17,468 vacuum tubes, 7,200 crystal diodes, 1,500 relays, 70k resistors, 10k capacitors and ~5 million hand-soldered joints Roughly 8.5ft x 3ft x 80ft, weighed 27 tons, and consumed 150kW of power Could perform 5,000 addition or subtraction operations on 10-digit numbers per second CS305-Spring 2010 Introduction 7
8 IBM System/360 The world's first mainframe. Built in 1965 Consists of a family of compatible models Model 20: 4K core mem Model 75: upto 1M mem Introduced the 8-bit byte standard Price: $2.5-$3 million CS305-Spring 2010 Introduction 8
9 Cray-1 A very successful, firstgeneration supercomputer. Built in 1975 Weighed 5.5 tons, consumed about 115 kw of power 2MB of RAM Its theoretical performance was 160 MIPS CS305-Spring 2010 Introduction 9
10 IBM Blue Gene/Q (Sequoia) World s fastest supercomputer (2011) Peak Speed: 20 petaflops 1.6 million cores Size: 3,000 sq ft CS305-Spring 2010 Introduction 10
11 Intel 4004 World s first microprocessor. First available in 1971 Size: 1/8 x 1/6 2,300 transistors Max CPU clock 740kHz Same computing power as the ENIAC CS305-Spring 2010 Introduction 11
12 The Original IBM PC Released August, 1981 CPU: Intel 8088, 4.77MHz Memory: 16~256KB Software: BASIC/DOS1.0 CS305-Spring 2010 Introduction 12
13 Today s PCs A full range of designs: From light-weight netbooks To super-powerful gaming PCs PC designs are also being used as components in supercomputers Sony PlayStation 3 processors are used inside the IBM Roadrunner CS305-Spring 2010 Introduction 13
14 Today s Computing Landscape Today s computing is ubiquitous! Connections: Cell phones The Internet and the Web , Blogs, Wikipedia, e-commerce Digital World: Books, music, pictures, videos TVs, home appliances ATMs, credit cards CS305-Spring 2010 Introduction 14
15 New Technology Brings Impacts Both Positive and Negative: Positive: e.g. convenience Negative: e.g. computer-assisted crimes Broad Scope: Social, Legal, Ethical, Economical, Environmental CS305-Spring 2010 Introduction 15
16 Cell Phones In 2006, 208 million people in the US and one billion worldwide used cell phones Became a common tool not only for conversations, but also Messaging, taking pictures, downloading music, checking , playing games, accessing the Web, watching videos, CS305-Spring 2010 Introduction 16
17 Cell Phones Impacts While useful for so many applications, there are also new problems: Intrusion: Safety: Privacy: Cell phone ring in movie theater Talking on cell phone while driving Cell phone cameras CS305-Spring 2010 Introduction 17
18 The Internet Internet connects millions of computers Powerful computational resource Even more powerful communication medium Network utility grows as #users squared 10 users 90 sender-receiver combinations 100 users 9900 sender-receiver combinations CS305-Spring 2010 Introduction 18
19 As fast as phone call, yet non-intrusive Can embed pictures and videos New Problems: Spam Unsolicited Effective for marketers: More than 100 times cheaper than junk mail Amount of spam has increased: 2000: 8% 2009: 90% Viruses, Worms, Trojan Horses Scams, societal changes??? CS305-Spring 2010 Introduction 19
20 The World Wide Web Huge amount of free info at our finger tips Platform for creativity Social networking Collaboration Online Education E-commerce CS305-Spring 2010 Introduction 20
21 Free Information and Stuff Free Search Engines: Google, Yahoo Free Encyclopedia: Wikipedia Free Classified Ad: Craigslist Free News and Other Articles Free Games: chess, bridge, Lego Free Phone service: Skype CS305-Spring 2010 Introduction 21
22 Free Stuff Problems Hidden Agenda: Search engine s ranking algorithm Tracking consumer behavior Infomercial vs. hard news Biased or incorrect articles in Wikipedia Harmful Information: Instructions for bomb making Political attacks CS305-Spring 2010 Introduction 22
23 Blogs Began as outlets for amateurs who want to express ideas or creativity Appealing because present personal views, are funny and creative, and present a quirky perspective on current events Popular blogs have up to several million views per day Problems: Hard to tell good blogs from bad ones CS305-Spring 2010 Introduction 23
24 Video Sharing Rise of amateur videos on the web Boom of websites like YouTube and MySpace Problems: Many videos on the web can infringe copyrights owned by entertainment companies CS305-Spring 2010 Introduction 24
25 Collaboration Information Depots: Wikipedia, Open Directory Project (ODP) Cloud Computing Telemedicine Problems: Quality control Reliability CS305-Spring 2010 Introduction 25
26 Social Networking First online social networking site was in 1995 Myspace, founded in 2003 had roughly 100 million member profiles by 2006 Facebook was started at Harvard as an online version of student directories The Twitter phenomenon: founded in 2006, the fastest growing site --- 1,382% per month CS305-Spring 2010 Introduction 26
27 Online Education Web-assisted school administration: Student application and admission Web-assisted teaching: Course information, teacher-student interaction Online courses and online university: The University of Phoenix CS305-Spring 2010 Introduction 27
28 E-Commerce Amazon started in 1994 and 10 years later annual sales reached $8.5 billion Online shopping become a top choice for many people price comparison, instant transaction, often free shipping Online Banking Problems: Security Privacy CS305-Spring 2010 Introduction 28
29 Summary of Ethical Issues Intellectual property Information collection Spam Differences between personal choices, business policies, and law CS305-Spring 2010 Introduction 29
30 Summary of Social Issues Out-sourcing and unemployment Working hours and work evaluation Computerized customer service Increased possibility of identity theft CS305-Spring 2010 Introduction 30
31 Summary of Legal Issues Intellectual properties Security vs privacy Security vs freedom of speech Cyber crimes CS305-Spring 2010 Introduction 31
32 Discussion Questions Some say that no technology is inherently good or evil; rather, any technology can be used for either good or evil purposes. Do you share this view? Thanks to a communications and software revolution, we are more connected than ever before by cell phone, , and video conferencing yet more disconnected than in the past from social interaction. Do you agree? CS305-Spring 2010 Introduction 32
33 Discussion Questions What do you think are the main driving forces behind technology advances? Are you happy with the fast pace of the changes, or do you wish it were slower? Do you tend to acquire new technological devices before or after the majority of your friends? What are the pros and cons of being an early/late adopter of a new technology? CS305-Spring 2010 Introduction 33
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