Group 7 Wong Ching Yat, Yau Cheuk Hang, Yu Miaoxia, Pau Wing Hong, Wong Lok Kwan HKU CCST9003 FA11

1. Operating Systems
Group 7
Wong Ching Yat
Yau Cheuk Hang
Yu Miaoxia
Pau Wing Hong
Wong Lok Kwan

2. Content
 Technological Advancement
 User Interface
 LINUX
 IOS
 Impacts on human behavior

3. Technological Advancement
Wong Ching Yat
2009035254

4. One step?

5. Over the past few decades….
Functionality
Computational speed
Stability
Storage
Evolution Of Operating System (OS)

6. What is an OS?
User
Application
Provide services for application software
Operating System
Manage computer hardware resources
»Efficient
Hardward

7. Genesis of OS
• has to specify all the
No Operating hardware operations to
Systems perform standard tasks
Symbolic • Write programs in human-
Language readable format
• Perform operations such as
Libraries input and output easily

8. Faster?
 Programs can be written more easily
 Some standard operations are instructed clearly by
libraries
Effective?
 Still, only a single task can be run at any time
 CPU are not working all the time
 Much more can be accomplish if we can maximize the
usage of resources

9. int
Multiprogramminglength=10, width=5, thickness;
int Area, Volume;
CPU can do Run Area = length * width;
some other
things
cin >> thickness;
Wait
Run Volume = Area * thickness
Time
Rapid switching of the CPU between multiple processes in memory

10. During the 1950s
 Economic pressure & software technology
evolution
 Concurrent execution of multiple programs
expected
 effective use of resources
Uniprogramming Multiprogramming
Processor use 17% 33%
Memory use 33% 67%

11. Faster?
Effective?
Low Cost?
» Only support single user
» Individuals and organizations must
own a computer in order to compute
In the 1970s…

12. Timesharing

13. Timesharing
Main Memory
Terminals
 Every user seems to own a computer called a
virtual machine
 May not optimize memory usage -> Response slowly
 Greatly reduces operation cost

14. In the 1980s…
Faster?
Effective?
Low Cost?
Computer connection & Information sharing?
» Personal computers became popular

15. Networking
 Functions
 Communicate via email, facebook, etc.
 Share files and data
 Access and use resources such as shared printer
 Scale
 Home
 Campus
 Wide Area (city)
 Internet

16. Networking
The networking OS support
 Built-in softwares designed to simplify networking of a computer
» Ping: Determining if a remote device can be reached across
the network Receive
» Traceroute: monitors the network path of test data sent to a
remote computer
 Protocols which define the formats and rules for exchanging
information via a network
 Internet connection sharing (e.g. ICS developed by Microsoft )

17. Thanks
IBM Microsoft
Apple Inc. Corporation
Researchers

18. User interface

19. Operating system
 Common
 Installed in all intelligent electronic devices
Mp3 player Computer Smartphones

20. Mutual cooperation
1 2 3 4
separate components
Operating
User interface applications hardware
System
Complex works can be
finished in a
systematic way

21. User interface
 different kinds of operating systems
OS/2 Macintosh Windowsamiga
Linux Symbian OS

22. What is “user interface”?
 Platform --- interaction between humans and machines
 Target : effectively fulfill the task requirement from the
user by the operation and control of the machine
 Comfortable and enjoyable environment
 Precise and accurate results will be provided
 2 most common type
- graphical user interface
- touchscreen

23. Generation of user interface

24. Graphical user interface
 Interaction with machines
usage of “digital images”
command user interface

25.  commonly used in well-known computer
operation systems
 “Microsoft Windows”,” Apple Mac”,,” KDC
Plasma Desktop”

26. Background
 presents the information to the user
1.colorful graphical icons
2.secondary notations

27.  Click on the icons on the screens
reach their destination
Type a lot of annoying text command
Conclusion :
Tasks are performed by direct manipulation
of graphical elements
Advantage over the old version user interface :
-shorten the time for the user to do the same task
-increase the efficiency in coping with the strenuous work

28. Touchscreen
 visual displays that accept input by
(1) touch of fingers
(2) a pen-like stylus
 Common used in
(1)smartphone (2) selling points

29.  emphasizes the word “ 2-way interaction “
interact with the machines “directly” by our
hand
using other pointers controlled by
computer mouse

30.  installed in internet and multimedia-
enabled smartphones
(1) Iphone (2) Android phone

31. Advantages
 it is highly intuitive
 easier hand eye coordination than mice or
keyboards
 durable in public access
 high volume usage

32. Conclusion
 Consistency --- quality of the user interface
 computer technologists
- figure out the problems of each type of user
interface
- modify them to a better way
- better future in technology development

33. LINUX

44. iOS

45. User Interface
 touch screen
 concept of direct manipulation
 3 basic controls (sliders, switches, buttons)
 internal accelerometer
 fluid interface
 user friendly
 new idea in market
 well performance

46. Features
 Home Screen
 Folder
 Notification Centre
 Application
 Switching Application
 Multitasking
 Game Centre

47. Home Screen
 home button(physical)
 show application icons
 dock at the bottom
 status bar
 jiggle mode

48. Folder
 start from iOS 4
 dragged on top of each other in jiggle mode
 name
 automatically decided
 edited by user
 

49. Notification Centre
 completely redisigned and updated in iOS 5
 be dragged from the top
 all notifications listed
 concentrated

50. Application
 lots of applications can be installed
 diverse
 help user
 improve performance

51. Switching Application
 Double click the home button
 Scrollable dock
 Far left
 music control
 rotation lock
 Jiggle mode
 quit application

52. Jailbreaking
 subjected to hacks
 add functionality not supported by Apple.
 install third party native applications
 allow user to design theme
 not an official or function

53. Impacts on human behavior
-YU Miaoxia，Yolanda
2010045199

54. Impacts on human behavior
 Background information
 Microsoft Windows
 Linux
 IOS
 Conclusion
 References
Source: http://hk.kingofcoders.com

55. Background information
 At the very beginning….
 1 execution at a time!!!
 Eg. DOS
Source: http://www.icalvyn.com/ms-dos-command/

56. Background information
 After technology developed…
 Multi -tasking OS
Source: http://cnx.org/content/m15580/latest/

57. Background information
 After the development of Graphical user
interface…
 facilitate in daily applications!!!
Source: http://www.webdesignerdepot.com/2009/03/operating-system-interface-design-between-1981-
2009/

58. Microsoft Windows
- Microsoft word
 be a better documentation
 save time for officers
 manage a huge amount of documents
 be in a good order
Source：http://angga-weblog.blogspot.com/2009/11/free-
download-microsoft-word-portable.html

59. Microsoft Windows
- Excel
 calculations & scientific data processing
 used in industry
Source：http://bizquantum.com/finding-right-business-
accounting-software/

60. Microsoft Windows
- OneNote
 used by officers & students
 print out lecture notes ?
 JUST jot down notes in OneNote!
Source： http://download.cnet.com/Microsoft-
OneNote/3004-2064_4-10280931.html

61. Microsoft Windows
 create a smoother interface
 mainly focus on home and office market
 provide a comfortable working environment
Source：http://linda-ergonomic.hubpages.com/hub/working-with-ergonomic-
chairs

62. Linux
 Open source character
 Facilitate in various applications
 E.g. QCad Community Edition & BRL-CAD
Source: http://blog.miragestudio7.com/open-source-cad-software-for-mac-
linux-and-windows-autocad-alternatives/3192/

63. Linux
 mainly used in data analysis
 apply in many industries and companies
 commercial suppliers specialized
business version administer higher
numbers of installations
proprietary support
packages
Source:
http://www.pas.rochester.edu/~pavone/p
article-www/analysis_info.html

64. Linux
 Image that without this FREE and OPEN
sources system….
 stay with the data logger day and night!!
Source: http://www.iemr.org/research_ss.html

65. IOS
 support other Apple devices such as iPod
touch, iPad and Apple TV
Source: http://otakugadgets.com/tag/all-apple-products/

66. IOS
Access to the Internet in mobile devices
change the human behavior
instantaneous online information
Source:
http://www.apple.com/tw/iphone/

67. IOS
- instantaneous news
 locate current location
and traffic path
anywhere
 check email anytime
anywhere

68. IOS
 allow working out of office
I am checking
the latest
task on my
way home ;)
Source: http://www.theengineer.co.uk/news/bus-
tracker/310093.article

69. IOS
 bring office work back home
 working hours will be longer
 totally affect their personal life
9AM?
?
Source: http://demidemi.deviantart.com/art/No-
Personal-Life-68425042

70. Conclusion
 OS affects our life in different aspects..
 get information more easily
 HOWEVER, get more un-wanted
information!
 change our working style
Source: http://gottasinggottapray.blogspot.com/2011/06/frustrating-
world-of-implementing-new.html

71. References
 OS:
http://en.wikipedia.org/wiki/Operating_system
 OS: http://www.computerhope.com/os.htm
Source: http://www.tide4.us/2011/10/iphone-for-steve.html