Data compression

About UniCode (06/24/2010)
(...) Under the UniCode definition, a glyph is the visual representation of a character. The character is the underlying concept, the understood meaning of the symbol. A glyph is what prints; the character is what you understand the glyph to mean. (...)

JPEG Baseline Compression (06/14/2010)
(...) The resolution is reduced by averaging together adjacent pixels, a process termed downsampling. The average can be taken either horizontally or vertically-the pixels may be either side by side or one above the other-or the pixels can be averaged in both directions. In typical JPEG processing, two pixels are averaged horizontally without vertical averaging (termed 2h1v sampling) or two pixels are averaged bother horizontally and vertically (termed 2h2v sampling). (...)

About JPEG (06/14/2010)
(...) In the case of JPEG, however, the variability translates into the versatility that's the standard's strongest point. JPEG allows many options in the image processing used for compression, maintaining order by giving a standard system for documenting the steps taken so that they can be reversed to reconstitute the image. All the compression details are listed in the header of the image file or at the beginning of a transmitted data stream. (...)

MPEG Standards (06/14/2010)
(...) At best, an MPEG-1 image on CD-i has about one-quarter the pixels of a standard TV picture. MPEG also requires hefty processing power to reconstruct the moving image stream, which is why CD-i players can display it directly to your TV or monitor, but only the most powerful PCs can process the information fast enough to get it to your display without dropping more frames than an art museum in an earthquake. If you're used to the stuff that pours out of a good VCR, this early MPEG looks marginal, indeed. (...)

Data Compression and Implementations (06/01/2010)
(...) By examining the patterns of bytes rather than the bit patterns inside each byte, the compression system seeks to find patterns that can be more efficiently represented. The goal of the data compression system is to eliminate redundancy, separating the bulk from the content. In effect, the compression system squeezes the air out of the data stream. (...)

Hardware Compression (06/01/2010)
(...) After you have compressed data, you cannot squeeze it again (at least using the same algorithm). Layering multiple levels of compression won't yield more space, may in fact waste space, and definitely has an impact on performance. Few, if any, hard disk drives with built-in device-level hardware compression have been marketed. (...)

File Compression and Archiving Systems (06/01/2010)
(...) Because these archiving systems do not compress on the fly, they can spend extra time to optimize their compression-for example, trying several compression algorithms to find the most successful one. They can often achieve higher compression ratios than standard disk compression software. (Because they are time insensitive, these programs can try more complex compression methods and avoid the rule that a compressed file can be compressed no further. (...)

New Technology File System (NTFS) (06/01/2010)
(...) The Master File Table tracks these attributes. To identify attributes, the file system assigns each file a unique ID number, a 48-bit value (allowing nearly 300 trillion entries). The Master File Table attempts to store all the attributes of a file in the record it associates with that file. (...)

Best Bluray Solution for Windows Movie Maker Users (05/21/2010)
(...) I will introduce you software named EarthSoft Bluray Ripper, it is the one that meets all these four points EarthSoft Bluray Ripper provides the easiest converting steps in order that both veterans and new users can get familiar with it immediately and operate it with ease. The converting job is just several clicks. Input your Blu-ray disc, choose the output formats you need, and then start the conversion. (...)

How to Enjoy Bluray Movies on Windows Movie Player (05/19/2010)
(...) How to choose the best one? What features should a best Blu-ray Ripper have? All the questions you should concern when you select a powerful software. Now, you can see the top four features mentioned below, you can find some suggestion from here:1. Practical functionsPowerful Blu-ray ripper is provided with handy functions. (...)

Email Archiving in Outlook: Merge PST Archive Files (05/12/2010)
(...) Difficulty in Information Search: Constant usage of your Microsoft Outlook email client for many years can led to the accumulation of numerous PST archive files, which can cause difficulty if you want to search for any old email information in these archive files. You would need to look into so many PST archive files to find the information your want, which is time wasting and annoying. If you merge Outlook archive folders and merge Outlook archive multiple files into a single file using a third-party tool (like SysTools PST Merge software), then it would be unproblematic for you to search the information from that one single file. (...)

Convert All Audio Formats to Your MP3 Player (04/23/2010)
(...) Many people are annoyed by so many audio formats and file extensions. With dozens of available file formats, it's really hard to know which ones can be played on your MP3 player. Usually when you buy a MP3 player, there is a tutorial to let you know the audio formats that the player can support. (...)