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Large File Programming In addition, all of the subroutines that deal with file sizes or file offsets are redefined to be their large-file enabled counterparts. Application programs that imbed file offsets or sizes in data structures may be affected by the change to the size of the off_t in the large-file environment. The maximum size of a file is ultimately a characteristic of the file system itself, not just the file size limit or the environment. www.llnl.gov /asci/platforms/bluepac/large_file_prog.html   (2438 words)

Determining File Size On a Macintosh computer, the file sizes you see in the finder aren't the size of the file, but are actually the number of bytes being taken up on a particular disk by the file. Each file on a disk (Mac or PC) occupies one or more allocation units; the exact number depends on the the file size and the disk's allocation unit size. The size of the file we are getting information about in this example (located next to the size on disk) is 32,099 bytes, or roughly 32K (really 31K and some change). www.cof.orst.edu /net/software/present/graphics/filesize.htm   (537 words)

Scanning: File Size vs. Image Size   (Site not responding. Last check: 2007-10-13) File size refersthe amount of memory needed to store a given image document. File size is directly proportional to the number of pixels in an image; the more pixels, the greater the file size. File size also depends on the kind of pixels that comprise the image; e.g., since a full-color pixel needs more memory than a fl & white pixel, a 1200 pixel "color" image will consume more memory than a 1200 pixel "grayscale" image. www.d.umn.edu /~sbauer/scanning/file.size_vs_image.size.html   (341 words)

Irregularities in File-Size Distributions   (Site not responding. Last check: 2007-10-13) In simulation, modeling, analysis, and design of file systems, it is often necessary to understand how the sizes of file are statistically distributed. To investigate the effect of multimedia on file sizes, and to better quantify the observed distributions, we undertook a study of college- and student-owned machines at Harvey Mudd College. Because of the wide range of file sizes and the shape of the observed distributions, we worked with the logarithm of the file size rather than the size itself. www.cs.hmc.edu /~geoff/filesizes.html   (403 words)

File size for Digital SSTV - updated 9/19/2004   (Site not responding. Last check: 2007-10-13) The file's data bytes are placed into blocks of a fixed size that contain the file data and redundant bytes. The maximum file size is limited in DIGTRX by the size limit on the capture buffer of 10,002 KB or 465 seconds (7 minutes and 45 seconds). It is not likely that you would want to make a file for transmission that would take nearly eight minutes to send, but you do need to keep in mind the size limitations and the consequences of large files. www.tima.com /~djones/size.htm   (628 words)

File Size - The GNU C Library A file begins with a size of 0 and is automatically extended when data is written past its end. However, sometimes it is necessary to reduce the size of a file. The file must be writable by the user to perform this operation. www.gnu.org /software/libc/manual/html_node/File-Size.html   (615 words)

Image resolution, file size, picture size and jpg compression If you want to reduce the "file size" (number of megabytes required to save the image), you can choose to store your image as a JPG file and choose the amount of compression you want before saving the image. By using JPG compression, you can keep the physical size of the image the same and reduce the amount of disk space required to store it but you will be sacrificing the quality of the image. The trade off is large file sizes and you will fill up your media quicker but, later on you can dump the original uncompressed image to a CDROM or hard drive, compress the original and resave it with a different file name. www.microscope-microscope.org /imaging/image-resolution.htm   (1047 words)

File Size Units File sizes tend to be one of the more perplexing issues for the both the fledgling and intermediate computer user. So, we've put together a breakdown of the various file size "units" you may encounter. To see the size of a given file, just right-click it (in Explorer or My Computer) and select Properties from the resulting menu. www.worldstart.com /guides/filesize.htm   (320 words)

3.9 File Objects Return the integer ``file descriptor'' that is used by the underlying implementation to request I/O operations from the operating system. Note that if a specified size exceeds the file's current size, the result is platform-dependent: possibilities include that the file may remain unchanged, increase to the specified size as if zero-filled, or increase to the specified size with undefined new content. In addition, when the file is connected to a terminal, the attribute gives the encoding that the terminal is likely to use (that information might be incorrect if the user has misconfigured the terminal). docs.python.org /lib/bltin-file-objects.html   (1095 words)

File Size - Lava Java - Pierce College The text file of this entire website can comfortably fit onto a floppy disk whereas only a small protion of the images may be stored on a similar floppy disk. The 'digital file' of the image that is used on the cover of a glossy magazine is likely to exceed 20 MB. Fortunately files can be 'compressed' (reduced in memory size) for storage and it is possible to fit a large compressed image file onto a floppy disk. www.pierce.ctc.edu /LavaJava/learning/tutorials/Digbasics/filesize.htm   (307 words)

Howstuffworks "How File Compression Works" Files that include a lot of unique information, such as graphics or MP3 files, cannot be compressed much with this system because they don't repeat many patterns (more on this in the next section). If a file has a lot of repeated patterns, the rate of reduction typically increases with file size. This type of compression is used a lot for reducing the file size of bitmap pictures, which tend to be fairly bulky. www.howstuffworks.com /file-compression.htm/printable   (1783 words)

Computer file - Wikipedia, the free encyclopedia Computer files can be considered as the modern counterpart of the files of printed documents that traditionally existed in offices and libraries, which are the source of the term. The content of the document file is arranged in a way that the word-processing program understands, but the user chooses the name and location of the file, and she provides the bulk of the information (such as words and text) that will be stored in the file. For example, a user-space program cannot delete a file; it can delete a link to a file (for example, using the shell commands rm or mv or, in the anonymous case, simply by exiting), and if the kernel determines that there are no more existing links to the file, it may then delete the file. en.wikipedia.org /wiki/Computer_file   (2486 words)

Graphic File Size ........... Graphics which are used on web pages can be any size you want, in terms of their length and width, as long as the picture fits on the screen. That caused the file size to increase from 7.5k to 9k, because the information about transparency is added to the photograph. As more and more users log on to the internet over a fast connection (cable, satellite, or fibre-optic lines), image file size will no longer be an issue, and you will begin to see more and more websites using large, high-quality photographs, since most of their visitors will enjoy fast loading. www.worsleyschool.net /science/files/graphicfile/size.html   (1247 words)

File Size, Compression & Memory Cards Your choice (or lack thereof) of file format helps to determine the size of the file and amount of compression applied to the image. The benefit of TIFF files in digital photography is that you are able to capture a full undistorted image in all of its original glory before any compression is applied to the image. The file size reduction is the most dramatic between no compression and 10%, where the file size drops by 72% with very little visible reduction in "to-the-naked-eye" quality. www.vividlight.com /articles/3516.htm   (1623 words)

Digital Imaging Tutorial - Basic Terminology Because image file size is represented in bytes, which are made up of 8 bits, divide this figure by 8. For instance, if a 24-bit image is captured with a digital camera with pixel dimensions of 2,048 x 3,072, then the file size equals (2048 x 3072 x 24)/8, or 18,874,368 bytes. File size naming convention: Because digital images often result in very large files, the number of bytes is usually represented in increments of 2 www.library.cornell.edu /preservation/tutorial/intro/intro-06.html   (170 words)

Ruby v1.6 Class and Library Reference: File   (Site not responding. Last check: 2007-10-13) The current owner of a file may change the file's group to any group to which the owner belongs. Returns the change time for the named file (the time at which directory information about the file was changed, not the file itself). Returns the change time for file (that is, the time directory information about the file was changed, not the file itself). www.rubycentral.com /ref/ref_c_file.html   (1138 words)

Get File Size : Find out file size before downloading a file Get File Size is an Internet Explorer add-on that allows you to find out the size of a file before downloading it. Get File Size does not require any special skills, just right-click the link to a file and select Get File Size, the program will immediately show you the size of the file. Moreover, Get File Size will show you the date when the file was last modified, file type, server response time and response headers, estimated download time. fileprofile.com /Internet/browser_tools/get_file_size   (221 words)

File Size of Images Page 2   (Site not responding. Last check: 2007-10-13) The size will be indicated in the lower right of the window. The number indicated in parentheses next to "size" is the true size of your file. In the example on the left, the true file size is 49,598 bytes. www.lehigh.edu /~inetp/Graphics_lesson/filesize2.htm   (132 words)

File Size A file size is frequently expressed in bytes, kilobytes (kb) or megabytes (mb). This is because information is embedded in the PDF file to describe how to view and interpret the TIFF images inside of a PDF viewer, as well as information (metadata) to describe the file itself. A format that reduces the number of colors used to no more than 216 and compresses the file by using a form of coded "shorthand" to indicate blocks of similar, adjacent pixels insted of storing information for each pixel individually. www.uspto.gov /ebc/portal/infofilesize.htm   (779 words)

Byte - Wikipedia, the free encyclopedia A fixed eight-bit byte size was later adopted and promulgated as a standard by the System/360. However, back in the 1960s, the luminaries at IBM Education Department in the UK were teaching that a bit was a Binary digIT and a byte was a BinarY TuplE (from n-tuple, i.e. A byte was also often referred to as "an 8-bit byte", reinforcing the notion that it was a tuple of n bits, and that other sizes were possible. en.wikipedia.org /wiki/File_size   (1129 words)

File Size vs "size on disk" - Alien Soup Size on disk refers to the amount of cluster allocation the file is taking up. Defragmenting might help somewhat, since it rewrites the files to take up contigous clusters, but it's not going to be able to get past the fact that pieces that don't fit completely into a particular cluster are not going to reclaim the slack. This means that while rarely accessed files and folders are compressed, the rest of the data on the drive remains in it's normal, uncompressed state. forums.aliensoup.com /showthread.php?t=6985   (3157 words)

Wave File Format - The Sonic Spot Wave files may contain strings of text for specifying cue point labels, notes, etc. Strings are stored in a format where the first byte specifies the number of following ASCII text bytes in the string. Wave files use the standard RIFF structure which groups the files contents (sample format, digital audio samples, etc.) into separate chunks, each containing it's own header and data bytes. The first 8 bytes in the file is a standard RIFF chunk header which has a chunk ID of "RIFF" and a chunk size equal to the file size minus the 8 bytes used by the header. www.sonicspot.com /guide/wavefiles.html   (4209 words)

Nabble - size of file   (Site not responding. Last check: 2007-10-13) file is 2.7 MB, which is closer to what I expected. A photo when stored as file, in disk, is a compressed file. Thus, when konqueror lists it with 2.7 MB - that is the file size. www.nabble.com /size-of-file-t853441.html   (519 words)

Reduce file size in PowerPoint Another added benefit of small file size is that the lighter the file, the less computing and display power is required from the PC that will run your presentation. This way you will not be able to see the little image preview when opening a presentation from PowerPoint, but your file size will decrease according to the "weight" of the images used in the first slide (the one that would be previewed as a miniature) of your presentation. You always have to remember, when you use linked files, to bring them with you and be sure that in the computer where you will run the presentation the linked files are present. www.masterviews.com /2001/07/13/reduce_file_size_in_powerpoint.htm   (1241 words)

Workbook File Size Increases While Editing Procedure Similarly, if you save a Visual Basic module sheet to the Basic Code (Text) file format, and you delete the original module sheet and then import the text file into a new module in the same workbook, the workbook decreases in file size when you save it. Because of this behavior, a workbook increases in file size when you add new variables to a procedure in the workbook, and does not decrease in file size when you delete variables from a procedure in the workbook. A workbook also increases in file size when a procedure contained in the workbook is compiled. support.microsoft.com /kb/123684   (386 words)

Joshua Flanagan - File size FormatProvider I need to be able to display file sizes to a user. The files can be anywhere from bytes to gigabytes (no terabytes, yet). If I display them in megabytes, you lose a lot of granularity, etc. I want to display the file sizes in units that make sense depending on the magnitude. flimflan.com /blog/FileSizeFormatProvider.aspx   (352 words)

File Size 1 File Size = (length in inches x width in inches x dpi : an image with pixel dimensions of 1600x1200 and an 24-bit color depth has a file size of 1600*1200*24 / 8 = 5,760,000 bytes. : an 8 inch by 10 inch document scanned at 100 dpi and a bit depth of 24 has a file size of 8*10*100*100*24 / 8 = 6,400,000 bytes. www.southalabama.edu /oll/imaging/5_file-size/filesize1a.htm   (75 words)

File size The measure of space a file takes on a storage medium such as a computer hard disk drive. File sizes can be measured in bytes (B), kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), and beyond. Additional information about determining the size of a file can be found on document CH000769. www.computerhope.com /jargon/f/filesize.htm   (105 words)

Freeware downloads Security-Privacy - Secure File Deletion at SnapFiles.com Simple File Shredder enables you to delete your files in a secure way, so they cannot be recovered by common undelete tools. Eraser is a secure file deletion tool that allows you to completely remove sensitive data from your hard drive by overwriting it several times with sophisticated patterns (Gutman, USDoD and others). It can receive files via drag-and-drop onto the application or the icon, selecting files from inside the program, command line, and can even add a shortcut to your Send To menu inside the Windows Explorer so it s simple to delete files in a secure and convenient fashion. www.snapfiles.com /Freeware/security/fwerase.html   (1009 words)

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