Digital Camera

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Digital Camera
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What is digital camera?

• Digital camera is like the normal camera and its
  images are created by using a CCD (Charge-Coupled
  Device) chip which houses thousands of "sensors"
  sensitive for red, green and blue light. It is
  now beginning to make serious inroads into
  photography. However, despite some current
  limitations, digital camera is the wave of the
  future and it's only a matter of time before most
  photographs are taken with these kinds of cameras
  rather than traditional film-based cameras

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Sony Mavica

• Inexpensive standard 3.5" 2HD floppy disk storage
  medium.
• Up to 40 images per floppy in standard mode and
  up to 20 images in fine mode.
• Large 640 x 480 image size.
• Universal JPEG format viewable on virtually any
  computer

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Sony Mavcia

• Auto exposure
• 2.5 inch color LCD display viewfinder
• 1/60 to 1/4000 second shutter speeds
• Auto white balance
• Built-in flash
• Up to 500 consecutive shots per Lithium-Ion
  charge - continuous recording (10-second
  intervals with flash off).

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JPEG GIF

• JPEG stands for "Joint Photographers Experts
  Group." It is a cross-platform format, therefore
  it can be used with either MAC, or PC computers,
  and because of its very efficient compression
  with minimal quality loss, its ideal for e-mail,
  websites, etc.
• GIF stands for Graphic Interchange Format, a
  compressed, 8-bit, indexed-color format common on
  the web.

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Scanner
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Scanner

• A scanner is a piece of equipment which is
  capable of scanning printed text and photographs.
  The product is a digital image that can be stored
  on a computers hard disk or onto floppy disc. The
  text or image can be manipulated if required and
  then incorporated into a publication, or a
  hypermedia product.

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Desktop Publishing and Internet

• Printing on paper, commonly use 600-2400dpi (dots
  per square inch) scanning resolution to get a
  clear well defined sharp picture on paper.
• Scanning photographs for Internet, commonly use
  72-75 dpi. On Internet, a higher dpi scanned
  resolution doesnt result in greater image
  quality, it is just a bigger image file size that
  takes unnecessary amount of time to download it.

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Steps of scanning

• Set dpi (dots per inch) to 72 - 75 dpi.
• Adjust size of image (I usually use 100, unless
  I want the image to be larger)
• Set Prescan to black white (it will Prescan
  faster than color)
• Prescan
• Crop the image of the prescan (put the box
  exactly around what you want to be in the final
  image).
• Set Scan to color or black white setting (I
  usually use color)
• Scan
• Adjust the gamma (color brightness control) so
  that the image is lighter.

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Rules to scan

• To make a image file size as small as possible,
  two step process has to be followed(1) Scan the
  original image at 72 - 75dpi(2) Save the image
  as a JPG file. Save it at maximum compression

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ZIP Drive
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Features of external Internal

• 100MB,250MB, 750MB Parallel, USB port Zip drive
  solution for PC's, Notebooks and Laptops.
  (include drive, cable and power.
• 100MB, 250MB, 750MB SCSI Zip drive solution for
  Mac's and PC's with SCSI connections.
• Expand your storage easily and cost-effectively.
• Backup fast and easy.
• Share large files with co-workers and friends.
• Consolidate 70 floppies onto a single 100MB Zip
  disk, 175 to 250MB, 540 or one CD disk to 750MB.

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CD-Rom/Compact CD DISC

• Writable CD-ROM (CD Burner), it requires two
  kinds of CD1. Rewritable 2.Recordable
• Readable CD-ROM, only can read, not write.
• Capacity of the compact CD disc
• 1. 74 or 80 minutes
• 2. Can store 650 or 800mb.
• Recordable DVD 4.5GB