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PC shutdown or stand-by?

This question is relevant if you think about energy saving. Switch on and off frequently a PC may bring damages to the computer’s hard disk or the power supply. The best for your computer is keeping it on while you think you may need it. Reducing the on/off cycles is better for your computer health. However, keeping your PC fully on may be energy consuming.

If leaving a computer on all the time doesn’t sound well to you, think about an automatic way to bring it to one of the best states for energy saving: shutdown or stand-by.

Shutdown

Manually, you can do it by clicking your Windows start button and after, in the start menu, clicking the link with the same name: shutdown. What happens then? Your computer will start shutting down every program you may have running1 and then switches off almost all its hardware2. This is the best state for energy saving. However, this is the most time consuming either for the shutting down phase and the resume one. If this longer time for start/stop is not relevant for you, take shutdown as your solution.

Automatically, you may use your Windows scheduler application (Scheduled Tasks) and type into the run field a command like

C:\WINDOWS\system32\shutdown.exe [-parameters]

according to instructions you may have a look at here. This Windows application, Scheduled Tasks, give you many options including the precise hour you want to run a shutdown on your computer. Like this, you can go to bed and Windows will take care of your energy cost reduction.

Stand-by

Manually, you can do it by clicking your Windows start button and after, in the start menu, clicking the link with the same name: stand-by3. What happens then? Your computer will not shut down any running

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Thumbnails creator

The script

Very often, in Web Design, images have to be resized to fit a webpage layout. A very good PHP based script is available on Internet since years, which is highly recommended by us if you wish to resize, or other ways process, images on your website. We use it very often in our webdesign and it works perfect…

1phpThumb() uses the GD Graphics Library to create thumbnails from images (JPEG, Portable Network Graphics or PNG, Graphics Interchange Format or GIF, Bitmap or BMP, etc) on the fly. The output size is configurable (can be larger or smaller than the source) and the source may be the entire image or only a portion of the original image. True color and re-sampling is used if GD v2.0+ is available, otherwise paletted-color and nearest-neighbour resizing is used. ImageMagick is used wherever possible for speed. Basic functionality is available even if GD functions are not installed (as long as ImageMagick is installed). One demo file uses portions of Javascript API by James Austin.

System requirements

Your website hosting provider must support:

  • PHP (v4.0.6 is bare minimum; v4.3.3 recommended; v5.0.0+ adds some additional filtering capabilities).
  • PHP GD library, ideally the bundled version that comes with PHP v4.3.0 or higher. Partially optional if ImageMagick is available.
  • ImageMagick. Partially optional if PHP-GD is available.

Supported formats — source

  • JPEG (via GD or ImageMagick)
  • PNG (via GD or ImageMagick)
  • GIF (via GD, ImageMagick, or phpthumb.gif.php)
  • BMP (via ImageMagick or phpthumb.bmp.php)
  • any image format ImageMagick can read

Supported formats — target

  • JPEG (via GD or ImageMagick)
  • PNG (via GD or ImageMagick)
  • GIF (via GD or ImageMagick)
  • BMP (via ImageMagick or phpthumb.bmp.php)
  • ICO (via ImageMagick or phpthumb.ico.php)

Features

  • Source image can be a physical file
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