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119 Cards in this Set
- Front
- Back
DVD Features
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Pause live-TV
Record programs Fast-forward Live TV Buffer In some you can download to an external hard-drive |
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OLED Features
(Advantages) |
Thinner lighter and more flexible than crystal
Brighter Consume less power Larger fields of view |
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OLED Features
(Dis-Advantages) |
Lifetime
Manufacturing Water |
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Features of Plasmas
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< 2 in thick (like LCD)
Brighter than LCD Can be seen from 160 angle *LCD can't* (no polorization features) Easily can be larger than LCds Problem with burn-in Can be supported by SED Illuminates tiny colored florcented lights to form an image *each pixel made of red, green, blue lights* => varies in intensities of the different lights to produce different colors. |
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Polarization
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Aborbs most of the light that strikes most of the light that strikes the filters and the remianing goes off to a right angle so you must look at center surface of screen
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What is a Plasma?
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a gas made up of free-flowing ions (electrically charged atoms)
The central element in a fluorescent light is a plasma, a gas made up of free-flowing ions (electrically charged atoms) and electrons (negatively charged particles). In a plasma with an electrical current running through it, negatively charged particles are rushing toward the positively charged area of the plasma, and positively charged particles are rushing toward the negatively charged area. In this mad rush, particles are constantly bumping into each other. These collisions excite the gas atoms in the plasma, causing them to release photons of energy. |
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Atoms used in Plasma
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Xenon & Neon
they release LIGHT PHOTONS when excited Mostly, these atoms release ultraviolet light photons, which are invisible to the human eye. But ultraviolet photons can be used to excite visible light photons |
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Main Advantage of Plasma
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The main advantage of plasma display technology is that you can produce a very wide screen using extremely thin materials
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Flash Drive Components
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A control gate and a floating gate exchange electrons through an oxide layer.
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Flash vs Hard drive
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Flash
-memory is noiseless. -It allows faster access. -It is smaller in size. -It is lighter. -It has no moving parts. Hard -cheeper -more capacity |
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Blu - ray Features:
Developed: |
The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data
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Blu- ray Features:
Advantages |
Instantly skip to any spot on the disc
Record one program while watching another on the disc Create playlists Edit or reorder programs recorded on the disc Automatically search for an empty space on the disc to avoid recording over a program Access the Web to download subtitles and other extra features |
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Home Game consoles Features:
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Highly specialized computer
Loading time Part of entertainment system Game designers (Know the hardware & software components) |
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DVR components:
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1. The television signal comes into the DVR's built-in TUNER through antenna, cable or satellite.
=>If the signal comes from antenna or cable: 2. . it goes into an MPEG-2 encoder, which converts the data from analog to digital (MPEG-2, by the way, is the compression standard used to fit information onto a DVD). 2. From the encoder, the signal is shipped off to two different places: I. first, to the hard drive for storage, an II. d second, to an MPEG-2 decoder, which converts the signal back to analog and sends it to the television for viewing |
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DVR stands for:
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Digital Video Recorder
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DVR Operating systems
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DVR is CUSTOMIZED OPERATING SYSTEM
The operating system resides on the hard disk, along with the recording space, a buffer for live broadcasts, and in some cases a space for future expansion EX: TiVo = the machines runs on a highly modified Linux system SLIDE: Resides in MAIN BOARD -CPU -MEMORY |
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DVR tuners:
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Some systems use DUAL tunes = Record different channels at once
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DVR (loved) features:
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Tapeless
Access remotely Set programs (Passes) (Wishlists) Fast forward commercials Playback controls (Rewind, Pause, Instant Replay) |
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DVR + Hardrive
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Hard drive space varies:
-30 hours to 320 hours -Depends on quality (LP, SP, HQ) Newer systems can record HDTV Fee for use Implications: -Product placement -Nielsen |
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Flash Drive is a ....
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Flash is a solid state storage device.
(Solid state means that there are no moving parts -- everything is electronic instead of mechanical.) |
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Solid State
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(Solid state means that there are no moving parts -- everything is electronic instead of mechanical.)
*Flash drive* |
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Examples of Flash Drives
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Your computer's BIOS chip
CompactFlash (most often found in digital cameras) SmartMedia (most often found in digital cameras) Memory Stick (most often found in digital cameras) |
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Flash Drive Components
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It has a grid of columns and rows with a cell that has two transistors at each intersection.
SLIDE A control gate and a floating gate exchange electrons through an oxide layer. |
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Two Gates to Flash Drives
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Control gate and Floating Gate
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iPod Components
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Hard drive
Memory Chip Microprocessor Converter Amplifier |
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iPod Components Hows Stuff Works
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1. Hard drive - 30-GB Toshiba 1.8-inch hard drive
2. Battery - rechargeable lithium-ion (700 mAh, 3.7V) 3. Click Wheel - navigation via touch-sensitive wheel and mechanical buttons 4. Display - 2.5-inch TFT LCD 5. Microprocessor - PortalPlayer PP5021C with dual ARM7TDMI cores 6. Video chip - Broadcom BCM2722 7. Audio chip - Wolfson Microelectronics WM8758 codec |
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iPod Process
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1. Load Music to Hard DISK
(file compressed to iPod as MP3 or AAC and stored on HDisk 2. Select song (use wheel & push "Play") 3. File from HDisk -> Mem. Chip (iPod gets file from it's Harddisk and compresses it to the Memory chip) 4. Microprocessor Decompresses (Takes file from the Mem. Chip and decompresses it to be played) 5. Digital to Analog Conversation (CONVERTER changes 0's and 1's of digital to a SOUND WAVE) 6. Strength increase & Send (AMPLIFIER increases strength of analog signal and sends it to AUDIO PORT) 7. AUDIO port plays (Plays from whatever you plug into jack) |
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iPod music goes...
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Computer ->
iPod Hdisk -> Memory Chip-> Microprocessor -> Converter-> Amplifier-> Audio Port -> Audio Jack |
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Home Gaming Consoles Components
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User control interface
CPU RAM Software kernel Storage medium for games Video Audio Power supply |
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Home Game Consoles Components: Imput
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One or more Game Pads
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Home Gaming consoles components:
OUTPUT |
1. Color TV
-Large -Low(er) resolution 2. High Fidelity Sound -Depends on TV -Stereo hookups 3. Tactile -DUAL SHOCK controller |
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Wii controller Components
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Solid-state accelerometers and gyroscopes
(Wii Fit: Wireless board, gyroscopic technology & multiple technologies) |
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Display Components types
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CTR
LCD Plasma DLP OLED |
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Display Components
CTR |
cathode: heated filament gives off electrons
attracted to anode (positively charged) |
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CTR stands for
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Cathode
Ray Tube |
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CTR:
Shadow Mask |
"Shadow Mask"
thin sheet of perforated metal in front of the screen |
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CTR
Yolk |
"Deflection Yolk"
magnetic coils used to generate fields that control movement of beams across the face of the tube |
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CCD stands for
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Charge-Couple Device
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3CCD
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Sepearte chip devoted to each color
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CRT Components :
CCD |
2 basic:
i .Photoreactive silicon layer ii. Transmission region |
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CCD does...
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Converts light into voltages
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CRT phosphors:
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R, B, and G phosphors
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anode
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Positive terminal
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Cathode
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Negative terminal
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Phosphor
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an organic material that glows when struck by the electron beam
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Shadow Mask How Stuff Works
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A shadow mask is a thin metal screen filled with very small holes.
Three electron beams pass through the holes to focus on a single point on a CRT displays' phosphor surface. The shadow mask helps to control the electron beams so that the beams strike the correct phosphor at just the right intensity to create the desired colors and image on the display. The unwanted beams are blocked or "shadowed." |
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LCD stands for
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LIquid
Crystal Device |
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LCD components:
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- Mirror,
- Electrode plane, - Liquid crystal substance, - Polarizing film |
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LCD Mirror
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A. In the Back which makes it reflective
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LCD Polarizing film
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B. Over the Mirror is a PIECE OF GLASS WITH POLORIZING FILM ON THE BOTTOM SIDE.
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LCD electrode Plane
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C. over Polorizing Film, made of lithium Tin Oxide.
usually covers entire area of LCD ALSO : electode plane in shape of a rectangle over Liquid Crystal Substance |
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LCD Liquid Crystal Substance
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one for each of the three colors that make up a pixel where the graphic adaptor applies a varring electonic charge to some cell and non to the others
the long rod-shaped molecules that make up the liquid crystal material react to the charge by forming a spiral (greater charge the more the molecules twist, greatest charge molecules flip at 180 degrees) |
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Order of LCD layers
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(BACK)
Mirror - reflective Polarizing Film Glass Electrode Plane Liquid Crystalizing Substance Glass with Electrode in shape of rectangle Polarizing Film (Finishes at right angle to the first Polarizing Film) |
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Plasma Components
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dielectric layer,
electrode, address protective layer, address electrode, MgO Layer |
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dielectric layer
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Plasma
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Electrode
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Plasma
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Address Protective Layer
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Plasma
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MgO later
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Plasma
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DLP
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Digital Light Processing
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DLP components
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DMD,
color wheel, address electrode, landing sites |
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DMD
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DLP:
Digital MicroMirror Device Little square mirrors made of aluminum reflect light to picture |
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Color Wheel
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DLP
Transparent spinning color wheel that white light passes through to add color to image. It is synchronized with DLP chip. |
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Address electrode
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DLP
Electrodes commonly connected to an array of memory bits so each electroide can represdent a 1 or 0 |
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landing slide
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DLP
Landing pads beneith the morror that tilt the mirror 10 degrees |
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OLED stands for
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Organic
Light Emitting Device |
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OLED components
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substrate,
anode, organic layers, conducting layer, emissive layer, cathode |
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Substrate
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OLED
(clear plastic, glass, foil) - The substrate supports the OLED. |
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anode
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OLED
(transparent) - The anode removes electrons (adds electron "holes") when a current flows through the device. |
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Organic layers
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OLED
These layers are made of organic molecules or polymers. |
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conducting layer
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OLED
Conducting layer - This layer is made of organic plastic molecules that transport "holes" from the anode. One conducting polymer used in OLEDs is polyaniline. |
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Emissive layer
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OLED
Emissive layer - This layer is made of organic plastic molecules (different ones from the conducting layer) that transport electrons from the cathode; *this is where light is made.* One polymer used in the emissive layer is polyfluorene. |
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Cathode
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OLED
Cathode (may or may not be transparent depending on the type of OLED) - The cathode injects electrons when a current flows through the device. --- usually of negative charge --- |
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compression standards
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?
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Optical storage
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Cd's
DVD's Blu - Rays |
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Basics of Optical Storage
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Short wavelength laser for read, write, and erase
The shorter the wavelength, the smaller the focused spot |
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Optical v. Magnetic
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OPTICAL:
Unlike magnetic recording, no contact between the medium and the heads |
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Magnetic Storage
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Circuit Board Uses
HARD DRIVE USES Head is magnetic Disk Platters are magnetic (DATA stored in HARD DRIVES are MAGNETIC and particles are arranged by polarity: 1- one bit charge 0 - zero bit charge in polartity Also deflection yoke in OLED uses |
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Magnetic Storage Advantages
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EASY and FAST writing and re-writing
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Circuit Board Reading
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Assembles magnetic domains (Reading)
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Circuit Board Writing
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Turns bytes into magnetic domains (Writing)
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difference between optical and magnetic is ....
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NO contacts between MEDIUM & HEADS
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CD vs DVD vs Blu- ray Writing
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Cd's -RED laser, one polycarbonate layer, BIGGEST track pad
DVD's - RED Laser, two polycarbonate layers, MEDIUM trackpad Blu- Ray - BLUE laser, one polycarbonate layer, SMALLEST trackpad |
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READ-only disks:
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CR-ROM & DVD
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REWRITABLE disks:
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CD-R (infrared light from CD-ROM)
& DVD-RAM (Red laser to read and write) |
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CD vs DVD
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DVD:
single later = 7x standard CD-ROM |
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DVD - R
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Recordable
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DVD - RAM
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Re-Writable
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DVD -RW
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Re-Recordable
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DVD layers
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single or double
dense tracks closer pits |
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DVD storage
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-Data encoded in the form of small pits and bumps in the track of the disc
-Production process creates microscopic bumps (single, continuous and long spiral) |
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DVD zones
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6 total
stores in ONE bite on DVD DVD player/device has a CODE in it as part of FIRMWIRE Limits playback within regions EXCEPTIONS: "zone" |
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Metal Housing
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-keeps dust out (via tiny gaps between head and Platters
-protective -Vents |
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Circuit Board
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- Receives directions
- Controls drive heads - Regulates spin speed - Assembles magnetic domains ("READING") -Turns bytes into magnetic domains ("WRITING") |
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Spindle
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Spins Platters
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Sectors
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"pie" shaped wedge
contains fixed amount of data |
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Tracks
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Concentric circles
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Clusters
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Grouped Sectors
(single file scattered among different clusters and platters) |
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Head Actuator
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Head Actuator:
- Controller directs the movement - Pushes and Pulls arms -Fast & Precise movements |
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Arms
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ARMS:
- Hold read/write heads -Move heads from hub to edge |
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Heads
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HEADS:
- Write Data - Magnetic |
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Disk Platters
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DIsk PLATTERS:
- very thin - magnetic (= easy & fast writing and rewriting) -usually more than one platter (can be up to 8) |
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HARD DRIVE DATA STORAGE
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HARD DRIVE DATA STORAGE
- magnetic! - 1 bit charge in polarity - 0 bit charge in polarity |
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Advantages to FLASH
(vs. HARD DRIVES) |
FLASH IS...
1. memory is NOISELESS 2. FASTER access 3. SMALLER in SIZE 4. LIGHTER 5. has NO MOVING PARTS |
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Advantages to OLED:
TYPES |
TYPES: transparent (heads up), Top-emitting, foldable (mobile devices, clothes), white (lighting)
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OLED vs CRYSTAL
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OLED:
-Thinner, Lighter, more Flexible |
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Overall Advantages to OLED
|
Advantages to OLED:
1. Thinner, lighter, more flexible than crystal 2. BRIGHTer 3. consume LESS POWER 4. LARGER frames of VIEW |
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Advantages to Current Game Consoles
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- Strict standards
- Emphasis on 3D acceleration - Storage Capacity (saving) - Networkabilty (multiple controllers, LAN/Broadband) ***MAINLY HOME*** -like a highly specialized computer -part of entertainment system -game designers know hardware and software |
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Current Game Consoles:
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Xbox 360
Nintendo Wii PSP 3 **and handheld game systems, cell phone games, and serious games** |
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Entertainment Game consoles today:
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- Training
- Education - Behavior |
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Chrominance
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Def: combination and hue and saturation
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Luminance
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Luminance:
(def) The Brightness of color |
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Saturation
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Saturation:
(def) The intensity and Vividness of color |
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Hue
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Hue:
(def) The Selection of a color |
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Field
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Field:
( 2 fields = 1 frame) / (1 field = 1/2 frame) (def): Interlaced scanning to reduce flicker {vs. progressive scanning used in PC moitors} -Save Bandwidth -262 1/2 lines (NTSC) -Odd and even -60 per second (NTSC) |
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Serious Games
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"Entertainment"
to... -train -educate -change behaviors |
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Aspect Ratios
(NTSC & HDTV) |
NTSC - 4:3
HDTV - 16:9 (Extra Image) |
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Mainframe Computer Games
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1960's:
First Timesharing systems Birth of Digital Game Fortran and BASIC |
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First Video Games:
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1. TX-0
(tick-tac-Toe, Bouncing ball, Mouse in maze) 2. PDP-1 (on off switch, more compact, more available, FIRST to allow multiple users to share computer simultaneously) 3. SpaceWAR (first game programed on computer, realistic background, scoring, control devices) 4. Arcade Games (---> home until late 1980's) 5. PC games/ home counsels (home quality very behind arcade) |
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Nintendo
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Resurgence:
- Control pad not joystick (Interface change) - Created arcade quality games - Loss leader |