Tugas PK BAB 6

PENGENALAN KOMPUTER BAB 6

++ Graphics, Digital Media, and Multimedia

Painting: Bitmapped Graphics

ü  Painting software:

Ø  Paints pixels on the screen with a

                pointing device

Ø  Pointer movements are translated

                into lines and patterns on the screen

Ø  Stores an image at 300

                dots per inch or higher

• Pixels: tiny dots of white, black, or color that make up images on the screen
• Palette of tools mimics real-world painting tools
• Also contains other tools that are unique to computers
• Bitmapped graphics (or raster graphics): pictures that show how the pixels are mapped on the screen
• Color depth: the number of bits devoted to each pixel
• Resolution: the density of the pixels

ü  Digital photo management software programs such as Apple iPhoto and Microsoft PictureIt! simplify and automate common tasks associated with capturing, organizing, editing, and sharing digital images.

ü  Bit-mapped painting (pixels) gives you these advantages:

ü  More control over textures, shading, and fine detail

ü  Appropriate for screen displays, simulating natural paint media, and embellishing photographs

++ 3-D Modeling Software

ü  Used to create three-dimensional objects with tools similar to those in drawing software

ü  Goal for some applications: to create an animated presentation on a computer screen or videotape

ü  Flexible: can create a 3-D model, rotate it, view it from different angles

ü  Can “walk-through” a 3-D environment that exists only in the computer’s memory

++ CAD/CAM: Turning Pictures into Products

ü  Computer Aided Design (CAD) software:

Ø  Allows engineers, designers, and architects to create

                designs on screen for products ranging from computer

                chips to public buildings

Ø  Can test product prototypes

Ø  Cheaper, faster, and more accurate than traditional

                design-by-hand techniques

ü  Computer-Aided Manufacturing (CAM) is the process by which data related to the product design are fed into a program that controls the manufacturing of parts.

ü  Computer-Integrated Manufacturing (CIM) refers to the combination of CAD/CAM and is a major step toward a fully automated factory.

++ Rules of Thumb: Making Powerful Presentations

ü  Remember your goal.

ü  Remember your audience.

ü  Outline your ideas.

ü  Be stingy with words.

ü  Keep it simple.

ü  Use a consistent design.

ü  Be smart with art.

ü  Keep each slide focused.

ü  Tell them awhat you’re going to tell them, then tell them, then tell them what you told them.

++ Dynamic Media: Beyond the Printed Page

The Synthetic Musician: Computers and Audio

ü  Audio digitizer – captures sound and stores it as a data file

ü  Synthesizer – an electronic instrument that

                synthesizes sounds using mathematical

                formulas

ü  MIDI (Musical Instrument Digital

                Interface) – standard interface that allows

                electronic instruments and computers to

                communicate with each other

Hypertext and Hypermedia

ü  Hypertext refers to information linked in non-sequential ways.

ü  Hypermedia combines text, numbers, graphics, animation, sound effects, music, and other media in hyperlinked documents.

Ø  Useful for on-line help files

Ø  Lets the user jump between documents all over the Internet