This document discusses hardware components for integrative media systems. It describes personal computer components including desktops, laptops and tablets as processing devices. Input devices include pointing devices, scanners, audio recorders and network cards. Monitors are described as output devices, with factors like resolution, screen size and refresh rate discussed. Storage devices include primary storage (RAM) and secondary storage like hard disks, USB drives, CDs and optical disks. Playback and development systems must have sufficient processing speed, memory, storage and display capabilities to smoothly run media applications and content creation.
9. 2.1 PERSONAL COMPUTER
LCD (Liquid Crystal Display)
is a flat panel display, electronic visual display, or video
display that uses the light modulating properties of liquid
crystals (LCs).
Produces better quality, sharp and crisp images.
Adv:
LCD monitors are smaller, thinner and weigh half as much as
CRTs.
LCD monitors don't produce the flicker that CRTs do, generating
less eye strain.
LCD monitors use low electrical power consumption
more energy efficient and offer safer disposal
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10. 2.1 PERSONAL COMPUTER
LED (light-emitting diode Display)
flat panel display that
uses LED backlighting instead of the cold
cathode (CCFL) backlighting used in most other
LCDs. The use of LED backlighting allows for:
thinner panel,
lower power consumption,
better heat dissipation,
brighter display,
better contrast levels.
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11. 2.1 PERSONAL COMPUTER
Storage Devices
storage device is a hardware device capable of storing
information. There are two storage devices used in
computers;
Primary storage (or main memory or internal memory), often
referred to simply as memory, is the only one directly accessible to
the CPU. Eg: RAM
Secondary storage (also known as external memory or auxiliary
storage), differs from primary storage in that it is not directly
accessible by the CPU. Secondary storage does not lose the data
when the device is powered down eg: hard disk, floppy disk, CD,
USB drive ect..
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12. 2.1 PERSONAL COMPUTER
Types of storages
Magnetic storage: uses patterns of magnetization on
a magnetically coated surface to store information.
Optical storage: store data optically -- using laser beams.
Read-Only Discs: CD-ROM and DVD-ROM Discs
Recordable Discs: CD-R, DVD-R, and DVD+R Discs
Rewritable Discs: CD-RW, DVD-RW, DVD_RW, DVD-RAM, and
Blue Laser Discs
c
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13. 2.1 PERSONAL COMPUTER
Types of storages
Flash Storage: consists of flash memory with an
integrated Universal Serial Bus (USB) interface. USB flash drives
are typically removable and rewritable. Use in digital camera,
pendrive, handheld PCs etc..
smart card : A credit-card-sized piece of plastic that contains
some computer circuitry, typically a processor, memory, and
storage. it can be used to hold specific pieces of information that
may need to be updated periodically.
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14. 2.2 PLAYBACK SYSTEMS
Playback system is a computer components that
allows us to playback the created integrative media.
The systems need to support the application for
smooth playback.
Things need to consider :
Speed of microprocessor (in MHZ or GHz)
Memory
Storage
Display Devices (LCD vs LED)
Video and audio card capabilities
CD and DVD speed
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15. 2.2 DEVOPMENT SYSTEMS
Development system is a computer components
needed for creation /production of the media
integrative.
The tedious process of media integrative
development, needs higher end system
specification.
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Editor's Notes
Interlaced GIFThe conventional (non-interlaced) GIF graphic downloads one line of pixels at a time from top to bottom, and browsers display each line of the image as it gradually builds on the screen. In interlaced GIF files the image data is stored in a format that allows browsers that support interlaced GIFs to begin to build a low-resolution version of the full-sized GIF picture on the screen while the file is downloading. Many people find the "fuzzy-to-sharp" animated effect of interlacing visually appealing, but the most important benefit of interlacing is that it gives the reader a preview of the full area of the picture while the picture downloads into the browser.Interlacing is best for larger GIF images such as illustrations and photographs. Interlacing is a poor choice for small GIF graphics such as navigation bars, buttons, and icons. These small graphics will load onto the screen much faster if you keep them in conventional (non-interlaced) GIF format. In general, interlacing has no significant effect on the file size of GIF graphics.Dot-pitch: The size of the smallest dot (pixel) your screen can display. Dot pitch is usually given as a fraction of a millimeter, such as 0.28 mm or 0.35 mm. The smaller the dot pitch, the crisper the images are on the screen, but the more the screen costs.