1) The history of human and computer interactivity
Until the late 1970s, the only humans who interacted with computers were information technology professionals and dedicated hobbyists.
Interaction between users and computers occurs at the user interface (or simply interface), which includes both software and hardware; for example, characters or objects displayed by software on a personal computer's monitor, input received from users via hardware peripherals such as keyboards and mouses and other user interactions with large-scale computerised systems such as aircraft and power plants.
How these devices affect the type of human computer interaction
Human beings interact with computer systems largely through input and output...In computing, input/output, or I/O, refers to the communication between an information processing system (such as a computer), and the outside world, possibly a human, or another information processing system. Inputs are the signals or data received by the system, and outputs are the signals or data sent from it.
The term can also be used as part of an action; to "perform I/O" is to perform an input or output operation. I/O devices are used by a person (or other system) to communicate with a computer. For instance, a keyboard or a mouse may be an input device for a computer, while monitors and printers are considered output devices for a computer. Devices for communication between computers, such as modems and network cards, typically serve for both input and output.
2) Simulation
· There is a computer model of a real or theoretical system that contains information on how the system behaves.
· 2. Experimentation can take place, i.e. changing the input to the model affects the output.
Describe the kind of interactive experiences involved with computer simulation such as driving style games
Simulation game attempts to replicate various activities in "real life" in the form of a game for various purposes: training, analysis, or prediction. Usually there are no strictly defined goals in the game, just running around, playing as a character. Well-known examples are war games, business games, and role play simulation. On one hand the game has a very heavy simulation feel with it’s more realistic submarine driving controls.
3) Hypertext
A special type of database system, invented by Ted Nelson in the 1960s, in which objects (text, pictures, music, programs, and so on) can be creatively linked to each other. When you select an object, you can see all the other objects that are linked to it. You can move from one object to another even though they might have very different forms.
The type of interactivity involved with hypertext
The implicit invitations called hypertext that link you to other pages provide the most common form of interactivity when using the Web (which can be thought of as a giant, interconnected application program)
In addition to hypertext, the Web (and many non-Web applications in any computer system) offers other possibilities for interactivity. Any kind of user input, including typing commands or clicking the mouse, is a form of input. Displayed images and text, printouts, motion video sequences, and sounds are output forms of interactivity.
4) Games
Computer Games
The level of interaction needed to play a computer Game
Hand/eye Coordination, ability to remain calm and thinking at a fast pace. You need good reflexes, a cool head to think about your next move, and you really need to have good concentration.
5) Virtual Reality
The user must then be able to interact with the environment in a natural, intuitive manner. Various immersive technologies such as gestural controls, motion tracking, and computer vision respond to the user's actions and movements. Brain control interfaces respond to the user's brainwave activity.
6) Time based
Examples of time based work
YouTube is one of the biggest web sites that you can find and watch time based work.
Types of Interaction;
External controls, tooltips,scrolling and zooming, mark-driven events and coordinate-driven events.
7) Task Orientated software
Task-oriented software is the most widely used because of its capability in reducing our work. Productivity software’s or task-oriented-software’s can make our work faster, whether at home or in business, and our lives easier. These software’s help us in doing our day-to-day tasks and activities thereby lessening the manual work needed to finish those tasks. The major categories of these task-oriented software’s are word processing/publishing, electronic spread sheets, database management, graphics and communication. Office Suites are just a mix of different attributes found in the said categories.
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