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Human Computer Interaction by zhangyun


									Human Computer
In the last 20 years, the introduction of
  the graphical user interface (GUI) has
  revolutionised the ways in which
  users interact with computers, known
  as human computer interaction (HCI).

After completing this unit, you should
 be able to achieve these outcomes:
Know about the impact of HCI on society,
  economy and culture.

Understand the fundamental principles of interface

Be able to design and produce simple interactive
  computer input and output based on HCI

Be able to compare and contrast, using HCI
  principles, the effectiveness of different designs
  of input and output.
 Probably the most recognised graphical
  user interface (GUI) is that used on PCs
  (personal computer)
 Microsoft Windows was based on the
  earlier Macintosh model.
 Windows version was introduced in the
   Historically, early HCI designs were
    restricted by the hardware. Users were
    required to type in lengthy code into the
    computer just to log in.

   Commodore 64 in the mid 80s, BBC B
    Micro and Amstrad, all competing for the
    market share during the 1980s.

   C:\ prompt with operating systems such as
    MS DOS
         Command Line Editor
   DOS, operating system – C:\ prompt
    would appear on the screen, the user
    could create a structure such as copying,
    renaming and moving files (my computer)

However with CLE, typed text was ignored
 until the Return key was hit; then the
 computer interpreted the command and a
 response appeared on the screen (or not!)
            Early designs
 US graduate Ivan Sutherland developed a
  program called the Sketchpad, which was
  inspired by research into how humans
 Developments at Xerox WIMP model
  became available in the early 1980s.

WIMP-windows, icons, menus and pointers.
In 1984 the Macintosh computer appeared
GUIs in the form of a computerised desktop,
 icons that were images, files, rubbish bin
 with the addition of a mouse, enabling the
 user to locate documents and put them in
 the bin and click on them to open them .

This desktop design has truly influenced
 how users interact with computers today
                Task 1
Investigate the tension between Macintosh
  and Microsoft regarding the development
  of their GUIs.
 Why the tension arose, when and what
  happened as a result.
 Prepare notes to share with group
 15 minutes

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