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Name:haya abd el ati 120090167 Ahmade abu mosameh

The scanner. Name:haya abd el ati 120090167 Ahmade abu mosameh. The scanner:is a device which can insert images into your computer and we can put it on CD.

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Name:haya abd el ati 120090167 Ahmade abu mosameh

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  1. The scanner Name:haya abd el ati 120090167 Ahmade abu mosameh

  2. The scanner:is a device which can insert images into your computer and we can put it on CD

  3. Types of scanner:1-Flatbed scanners :This type of scanners is the most prevalent, and the vast majority of computer users use it… The modus operandi of this kind depend on the scanner to be fixed is then passed the paper to be scanned in front of the device manually.2-Handheld scanners: Unlike the previous type where they are .moving the scanner over the document 3-Drum scanners: This type is used in publishing and advertising and advertising, where can this type that captures high-quality images, the Wii will serve such a technology known PAL photomultiplier tube (PMT), and can pick up images of many types of surfaces Kadip and translucent and reflective.

  4. Configure scanner: The surface of transparent glass, is placed upon the document. -1The light source, usually white or Fluorescent Lamp type of xenon. -2A total of mirrors (Mirrors). -3A total of lens (Lens). -4Filters (Filters-5 ADC (analogue to digital converter)-6 Stepper motor-7 CCD (Charged-couple device)-8

  5. How to pick up the scanner's??? 1-The document is placed face down on a transparent glass plate.2-The light source by shining white light to the document. 3-Unlike the mirrors is reflected from a mirror of the document to another. 4-Recent women's movement to the lens. 5-The lens in turn, shed the image on the set of filters. 6-Move the image from the filters to the CCD and the issuance of the CCD signal, electric, reflect the light falling on them.

  6. For the group of lenses and filters are different from the scanner to :the latest Three pass, where it is clear the entire document three times and each time you use a filter of the three (red, green, blue), and after the completion of the three operations are grouped the three results Single pass, in this way is cleared document only once, the lens composition of three copies of the original image, copy it pass filter and red again through the green and the other across the blue, and then pass three copied to the CCD where they are assembled to form the original picture then. type of the CCD, where the CCD consists of three parts each part receives one of the three copies. .together to form the true image

  7. CIS:There are other types of scanners modern technology is used what is known as CIS (contact image sensor), in the CIS is replaced by the light source and the mirrors and lenses and filters 1rows of LEDs of red, green and blue (the LED are the type of LED light when the issue is connected to electricity, so called Light Emitting Diode and the advantage of being very fast in the opening and closing and a long life). 2, in addition to a group of LEDs are the Sensors It is a photovoltaic cells that receive reflected light and Iistkhaddm in .this way from about 300 to 600 sensor

  8. How to move data from the scanner to the computer???(arranged from fastest to slowest): Port, FireWire, is this port is the fastest data transfer. -1Port USB, easy to use and fast. -23-SCSI port for the use of this port is an extra card installed inside the computer, and is connected to the scanner while profiting. 4-Parallel port data is transferred through the port Parallel port and this type is the slowest

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