... quality sound and are the same size as a standard CD. These things allowed the DVD to overcome problems that plague other media types such as the laser disk and become a popular type of media. Because of its architecture, a DVD is able to hold enormous amounts of information. As with a C.D., ... DVD's use lasers to burn pits into a disk that are read by another laser and transferred into the computers language. The difference between a DVD and a CD lies microscopically on the disk itself. This internal design provides DVD with the ... a DVD are much smaller and closer together than the...

• Word Count: 7384
• Approx Pages: 30
• Grade Level: High School

... is called the reference beam. The signal beam is made to reflect off an object and hit a photographic film. Here, it meets the reference beam, which travels directly from the laser. The two beams interfere and a dark and light pattern is produced on the photographic film. Hence, a hologram is created. To display the hologram image, the reference beam is made to ... data stored/read in this form? Holographic computer storage works on a similar principle to the way a hologram is created. The two beams of light are made using a blue-green argon laser. The storage medium in this case is a p...

• Word Count: 1161
• Approx Pages: 5
• Has Bibliography
• Grade Level: High School

... the board to reduce the costs. The other form factor is the ATX and was introduced to reduce cable clutter, improve airflow across the CPU and make room for full length expansion slots. The best way to describe an ATX board is that it is an AT board turned 90 degrees. There are two other form factors available but only to ... a PC. With modern technologies, physical copies of documents can be put into others hands by way of simple devices such as dot matrix printers to the more sophisticated devices like laser printers. Printers are measured in a unit referred to as DPI or dots per inch...

• Word Count: 2149
• Approx Pages: 9
• Has Bibliography
• Grade Level: High School

... the board to reduce the costs. The other form factor is the ATX and was introduced to reduce cable clutter, improve airflow across the CPU and make room for full length expansion slots. The best way to describe an ATX board is that it is an AT board turned 90 degrees. "There are two other form factors available but only to ... a PC. With modern technologies, physical copies of documents can be put into others hands by way of simple devices such as dot matrix printers to the more sophisticated devices like laser printers. Printers are measured in a unit referred to as DPI or dots per inc...

• Word Count: 2342
• Approx Pages: 9
• Has Bibliography
• Grade Level: High School

... broadband systems that we know are referred to as " the dirt road" (pg 53). The "paved highway" that scientist are trying to reach will most likely be made up of laser fiber optics (pg 53). The laser is expected to carry information 10 to 100 times faster than our current connections. By mixing common-sense programs and ... laser fiber optics could truly turn the Internet into a "Magic Mirror" (pg 44). If we are to ever have a true Magic Mirror then we must first invent a machine that is able ... ...

• Word Count: 2066
• Approx Pages: 8
• Has Bibliography
• Grade Level: High School

... paper exactly the same image that you see on the computer screen. For that reason, Apple invested on the laser printer. The power of precise laser-printed images and user friendly GUI gave birth to a brand new business - desktop publishing (Bruno, 1997). The laser printer Apple purchased used the same ideals from the Xerox printer built in 1973 (McGrath, 1999). Xerox Xerox, like ... ...

• Word Count: 822
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• Has Bibliography
• Grade Level: High School

... has evolved from other optical media like the CD and DVD. However, "it allows on million bits of data to be stored in a single flash of light"11. Light from a laser is split into two beams. One beam carries data and the other is a reference. These two beams will intersect on the recording medium and the hologram is formed. The major ... go down to a single atomic monolayer13. Another type of multilayer storage medium is commonly used today. That medium is the DVD. DVD's can have up to four layers. The read laser can actually see through the top layer to read the second layer14....

• Word Count: 705
• Approx Pages: 3
• Has Bibliography
• Grade Level: High School

... advances in the field of Peripherals over the last few years. Even the humble keyboard and mouse have been re-invented to produce the Ergonomic keyboard and the cordless and laser mouse. There have also been advances in monitors such as flat screen displays and LCD screens. But there have also been advances in technology, which although not new, have been ... should put them into their categories. Output Devices Printers Printers have developed from the daisy wheel printer to the thermal printers of today. Other advancement in printers have been the laser printer (Same technology as pho...

• Word Count: 349
• Approx Pages: 1
• Grade Level: High School

... has evolved from other optical media like the CD and DVD. However, "it allows on million bits of data to be stored in a single flash of light"11. Light from a laser is split into two beams. One beam carries data and the other is a reference. These two beams will intersect on the recording medium and the hologram is formed. The major ... go down to a single atomic monolayer13. Another type of multilayer storage medium is commonly used today. That medium is the DVD. DVD's can have up to four layers. The read laser can actually see through the top layer to read the second layer14. 1. Cente...

• Word Count: 829
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• Grade Level: High School

... make power, but the military use it also in weapons. The army also use other inventions like infra-red-photography or the laser technology for their machinations. But these technologies are also need for the civil use. For example with a laser it is able to make fast and efficient surgeries. One of the most important inventions is the computer. He is a part ... ...

• Word Count: 658
• Approx Pages: 3
• Grade Level: High School

... CD-ROM drives are caddy less. The disc is placed into a tray. Digital data is carved into the CD-ROM as pits (low spots) and lands (high spots). As the laser shines into the moving pits and lands, a sensor detects a change in reflection when it encounters a transition from pit to land or land to pit. Each transition is a 1. The lack of ... transitions is 0s. There is only one laser in a drive. The Re-Write CD-ROM and DVD drives are valuable for data storage and allows you to make copies of software music CD's and DVD's. CD-RW drives ... ...

• Word Count: 5237
• Approx Pages: 21
• Grade Level: High School

... has evolved from other optical media like the CD and DVD. However, "it allows on million bits of data to be stored in a single flash of light"11. Light from a laser is split into two beams. One beam carries data and the other is a reference. These two beams will intersect on the recording medium and the hologram is formed. The major ... go down to a single atomic monolayer13. Another type of multilayer storage medium is commonly used today. That medium is the DVD. DVD's can have up to four layers. The read laser can actually see through the top layer to read the second layer14. ...

• Word Count: 795
• Approx Pages: 3
• Has Bibliography
• Grade Level: High School

... bumps and holes on the highways, and this is very similar to the paths that current takes as it travels through silicon, wires, and other materials. The PBG crystals use laser light, which in nearly all cases, is perfect. The lasers that are used to transfer the crystals are constant and steady. There are very few imperfections to be found in ... the laser light. It is relatively easy to see that the fewer amount of imperfections that are found in the materials, the better the material will transfer the information. PBG crystals are ... ...

• Word Count: 941
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... drop bombs, but past wars also involved sending numerous troops off to fight in hand-to-hand combat. Most nuclear weapons were not invented at that time. There were no laser-guided missiles. American soldiers were trained for fighting in combat. Only a small percentage of soldiers were skilled in using actual war machines. If a military wished to defeat another, it had ... ...

• Word Count: 1471
• Approx Pages: 6
• Grade Level: High School

... platters are divided into tracks and sectors. A vertical stack of these tracks is a cylinder, which is the basic storage bin (Parsons and Oja 42). The CD-R, compact disc recordable, utilizes laser technology. When writing to a CD-R the data is written as a change in the reflectivity of the disk's surface. This data, however, cannot be erased or altered once the CD-R has ... ...

• Word Count: 839
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• Has Bibliography
• Grade Level: High School

Graphics Input Output Devices Input device is used to transmit data to the processing and storage hardware. The data to be input can be in source from, a form that human perceive, or in machine form, a form that can be electronically sensed by another computer. Any device that allows information ...

• Word Count: 2738
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... writing on other computers and not their own. Choosing a mouse is also pretty straight forward. The only real difference is ball versus getting an optical mouse. An optical mouse uses a laser and reads on the screen accordingly. With a ball mouse, dirt is regularly a problem and must be opened and cleaned frequently. If you do decide to get an optical mouse go ... ...

• Word Count: 1918
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• Grade Level: High School

... contain a small amount of ROM which stores critical programs such as the program which boots the computer. In addition, ROMs are used extensively in calculators and peripheral devices such as laser printers, whose fonts are often stored in ROMs. Electrically Erasable Programmable Read-Only Memory (EEPROM) Machines with flash BIOS capability use a special type of BIOS ROM called an EEPROM; which ... ...

• Word Count: 654
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... were easily brushed aside as the men freely wandered the hospital. It seemed impossible to access someone's computerized medical history by the terminals, but why bother to try when the laser printer in an empty lounge was spitting out dozens of them? (Scheir, par 24) Right next to it, a receptionists desk had a stack of medical files laying on it. As the ... ...

• Word Count: 1283
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• Grade Level: High School

... Science Laboratory of Xerox PARC (Palo Alto Research Center),with the help of other engineers, was a major contributor to such influential projects as; the personal computer,the foundation for the laser printer, the program that became the basis for what would later become Microsoft, Macintosh operating systems. Weiser thinks that because microchips are becoming so powerful and so cheap that they ... ...

• Word Count: 1964
• Approx Pages: 8
• Has Bibliography
• Grade Level: High School

... linear bus topology (Unknown 1). Some of the advantages of a linear bus is it's easy to connect a computer to a peripheral, and requires less cable length than a star topology. Several of the disadvantages are the entire network shuts down if there is a break in the main cable, and terminators are required at ... connecting or removing devices, and it's easy to detect faults and to remove parts (Unknown 2). Several of the disadvantages is it requires more cable length than a linear topology, and if the hub or concentrator fails, nodes attached are disabled. Finally its more expensive th...

• Word Count: 846
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• Grade Level: High School

... as simple if they were stored on your own machine. Printers Sometimes the printer connected to your machine doesn't have the capabilities of another printer in your office; i.e. colour or laser quality. To print on another printer in a non-networked situation, you have two options. First, you could disconnect your printer and the printer you wish to use and install the ... ...

• Word Count: 1023
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... . First you have your outside units like your printer, monitors, modem, floppy disk drive, CD ROM drive, scanner, speakers and keyboard. These things are called peripherals. Printers come in inkjet, laser and thermal. Lasers are much faster than inkjets. The monitor is the television like unit where you observe text and images. Modems permit us to connect to the Internet, which ... ...

• Word Count: 911
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• Grade Level: High School

... . Users can also use the LAN to communicate with each other, by sending e-mail or engaging in chat sessions. Some other benefit is that people can share expensive devices like laser printers, or programs. Can you imagine if in a large company there is only one printer, and how difficult it will be for anyone to use it. Now by using LAN ... ...

• Word Count: 487
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• Grade Level: High School

... , "morphing" ("Terminator 2" 1992), animation alongside C.G.I ("Beauty and the Beast" 1991), dinosaurs ("Jurassic Park"1993) and the first ever full-length C.G.I film ("Toy Story" 1995). Following the success of "Toy Story" companies such as Dreamworks, Disney and Pixar continued to make full length C.G.I Films such as "Antz", "A Bugs Life", "Toy Story 2" and "Stuart Little". The year 2000 to the present also saw an ... the benefits of C.G.I some titles including the original mini-series "Walking with dinosaurs", "Shrek", "Ice Age" and "Star Wars Episode II Attack of The Clones". Which w...

• Word Count: 508
• Approx Pages: 2
• Grade Level: High School