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1 ITGS - 01 Computer in human life (don’t) know: Work network. Leisure. etc students Computer: in human life.

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Presentation on theme: "1 ITGS - 01 Computer in human life (don’t) know: Work network. Leisure. etc students Computer: in human life."— Presentation transcript:

1 1 ITGS - 01 Computer in human life (don’t) know: Work network. Leisure. etc students Computer: in human life

2 2 ITGS - 01 Computer in human life (don’t) know: Alarm clock digital wrist clock; TV and radio; CD/DVD & MP3 player; Telephone; Heating home. Computer: in human life

3 3 ITGS - 01 Computer: in human life I think that today could apsolutely be THE WORST DAY OF MY LIFE. Get this, last night i set my alarm clock to 6 45 am. I remember triple checking my alarm clock to make sure i wouldn't be late once again for school, just like i was late almost every single other day this week. When my mom walked into my room at 9 45 with a pan in her hand, threatening to beat me up if i didn't wake up right away, i jumped up and started yelling. I checked my alarm clock to check what the problem was, and it turned out that i set it to 6 45 pm. After screaming some more, i got dressed and begged my dad to drive me to school. When i got to school i realized that i had about half a ton of toothpaste tangled in my very frizzy and curly hair. And thanks to the rush i was in, i realized that i came to school in my bunny slippers that i walk around in the house with. So, i got to school right on time for my lesson. I had a lot of work waiting for me, first i had finish designing the web page for our school, then i had to write an essay. To make my day even better, the minute i got in the computer lab i realized that EVERY SINGLE computer had a virus, and wasn't working. I started screaming some more. Tijana Petrovic and Milana Marinkovic

4 4 ITGS - 01 Computer: in human life Wake up: Alarm clock, mobile phone, radio, telephone Morning news and temperature: TV, radio Traffic jam: TV, radio, mobile phone Cold morning: heating Transport: computer in a car Traffic jam: traffic lights Parking place: company garage door Entrance to the company building: key card 45th floor: lift Office: key card Job: computer, mobile phone, printer, clock, telephone Ground floor: lift Transport: computer in a car Lunch: telephone, credit cards Resting: music, TV, DVD,CD player Bowling: computer for rising pins Paying the bill: credit cards Playing games at home, Internet: PC Authors: Srđan Vujasin,Andrea Vudrag

5 5 ITGS - 01 Computer in human life (don’t) know: Newspaper; Weather forecast; Heating town; Transport; Hotel Restaurant Computer: in human life

6 6 ITGS - 01 Charles Babbage Jacquard’s automated loom Augusta Ada King, Countess of Lovelance, the dautgher of poet Lord Byron (first computer programmer) Unfinished Analytic Engine Computer: before

7 7 Computer Black box Inputs: Mouse Keyboard ….. System unit Outputs: Monitor Printer ….. Input/output: Floppy Fax CD/DVD R/W USB (FLASH MEMORY, …) …..

8 8 Computer The same computer different jobs. Restaurant, Home, Hotel, Military, Space, Newspaper, Industry… Inputs: Mouse Keyboard ….. System unit Outputs: Monitor Printer …..

9 9 Computer The same computer different jobs. Hardware the same Software different (system, application, user)

10 10 Computer The same computer different jobs. General-Purpose Computer Special-Purpose Computer

11 11 Computer technology Electrical devices used in computers: Electromechanical relay Vacuum tube Transistor; Integrated circuit (IC)

12 12 Computer technology The first computers, tube based, were: big, expensive, need staff, big place, … New technology (silicon) The transistor, invented in The first used in computer Computers with transistors were smaller, chipper, faster, reliable

13 13 Computer technology Mark I Electromechanical relay Six times faster than a person ENIAC (Electronic Numerical Integrator and Computer) two months after the end of war. 18,000 vacuum tubes UNIVAC first general purpose commercial computer

14 14 Computer technology 1956 – transistors were used in computers mid 1960s new integrated circuits were used in computers The first microprocessor was invented in Silicon chip

15 15 Computer quality Reliability (new devices can be test before Size (new devices means smaller computer) Speed (shorter distance, faster computer) Efficiency (smaller devices, loss electrical power) Cost (mass production chipper computer)

16 16 Gordon Moore Gordon Moore the chairman of chipmaker Intel 1965 Prediction: The power of a silicon chip of the same price would double about every 18 months

17 17 Intel vs Motorola IBM PC: which microprocessor Motorola Intel

18 18 ITGS - 01 Server Work & resources for other computer over a network. Application for multiply users. Computer: Server, Workstation & PC

19 19 ITGS - 01 Mainframe Mainframe computer – room-sized computer. today: (banks, airlines) as refrigerator, a million $ in a climate-controlled rooms Computer: Mainframe & Supercomputer

20 20 ITGS - 01 Mainframe Terminal = keyboard + screen + little local processing power Terminal transfers information to ad from the computer. Distance between M & T (same or another room or another country) Computer: Mainframe & Supercomputer

21 21 ITGS - 01 Mainframe Terminal = keyboard + screen + little local processing power Terminal transfers information to ad from the computer. Distance between M & T (same or another room or another country) Computer: Mainframe & Supercomputer

22 22 ITGS - 01 Mainframe Timesharing = small part of time for each user Computer: Mainframe & Supercomputer

23 23 ITGS - 01 Mainframe weather forecasting medical pictures telephone network design simulations (car crash, scientist, engineer,...) Computer: Mainframe & Supercomputer

24 24 ITGS - 01 Mainframe (used) weather forecasting medical pictures telephone network design simulations (car crash, scientist, engineer,...) Computer: Mainframe & Supercomputer

25 25 ITGS - 01 Supercomputer superfast, superpowerful computers are called supercomputers. Computer: Mainframe & Supercomputer

26 26 ITGS – 01 Workstation Computer power Interactive application Scientific workstations Computer: Server, Workstation & PC

27 27 ITGS - introduction PC: two meanings: Personal computer – PC (IBM) Personal computer – General-purpose single-user computer PC – made by or compatible with IBM’s product. Computer: Server, Workstation & PC

28 28 ITGS - introduction Personal computer vs. desktop computer Portable computer – laptop computer Notebook computer (sometimes called laptop computer) Laptop computer (computer on your lap while you work) Subnotebook (extralight, ultramobile) Expansion bay (one device can be inserted at a time.) Computer: Portable 1

29 29 ITGS - introduction Laptop vs. desktop computer Docking station or port replicator (connect laptop to an external monitor, keyboard, mouse and disk drive). Handheld computers Personal Digital Assistants (PDAs). Computer: Portable 2

30 30 ITGS - introduction and computer (digital satellite receiver, wristwatch, toy, game machines, stereo, oven, air condition, digital video recorders DVR, car. Programs of special purpose computers are part of computer and can’t be altered. Firmware- a hybrid of hardware and software. The Emergence of Net computer Embedded computer

31 31 ITGS - introduction The invention of timesharing (1960s) allowed connection: a mainframe computer and individual terminals. PC replaced terminal Local area network (LAN). Wide area network (WAN). MAN The Emergence of Networks

32 32 ITGS - introduction Computers in network share: storage, printers processing power. The Emergence of Networks 2

33 33 ITGS - introduction Electronic mail ( ). World Wide Web (WWW) Web browser (navigable window) Hypertext links The Emergence of Networks 3

34 34 ITGS - introduction Word processing and desktop publishing Spreadsheets and other number- crunching applications Databases Computer graphics and digital photos Digital audio, digital video, and multimedia Applications: computers in Action 1

35 35 ITGS - introduction Telecommunication and networking Artificial intelligence Entertainment General problem solving Applications: Computers in Action 2

36 36 ITGS – Hardware Basic Computers perform only 4 functions: Receiving input Process information Produce output Store information What computers do 1

37 37 ITGS – Hardware Basic Hardware components specialized in each of these 4 functions: Input devices Output devices A microprocessor, Processor, CPU Memory - Storage devices What computers do 2

38 38 ITGS – Hardware Basic Memory: Primary storage RAM Secondary storage What computers do 3

39 39 ITGS – Hardware Basic Number Systems: Number v.s digit Decimal numbers Binary numbers. Conversion Binary Number System 1

40 40 ITGS – Hardware Basic Bits as Codes (ASCII) Bits as Codes (number). Bits as Instruction (programming) Binary Number System 2

41 41 ITGS – Hardware Basic Unique 8-bit code: 256 unique characters Unicode A character set that uses 2 bytes 256*256=65636 = 64K distinct codes. Double byte character set called UNICODE. ASCII v.s Unicode 1

42 42 ITGS - introduction  Social & Ethical issues The difficulty about persons who owns information about you.  each group example.  each student one example Who owns information?

43 43 ITGS - introduction  Social & Ethical issues The difficulty about protecting High- tech crime.  each group example.  each student one example High-tech crime?

44 44 ITGS - introduction  Social & Ethical issues The difficulty of defining and protecting intellectual property in an all-digital age  Education CD by my group.  each student one example Intellectual Property

45 45 ITGS - introduction  Social & Ethical issues The risk of failure of computer systems  communication problem.  billing errors  lost data Failure of computer systems

46 46 ITGS - introduction  Social & Ethical issues The abuse of information as a tool of political and economic power  information-rich people and countries v.s information-poor. The abuse of information

47 47 ITGS - introduction Put them in the correct order : Start application  Programs  Application  Start button Windows: Jumbled the Words

48 48 Sources Computer confluence


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