Tagged Image File Format
(TIFF) A file format used for still-image bitmaps, stored in tagged fields. Application programs can use the tags to accept or ignore fields, depending on their capabilities.
While TIFF was designed to be extensible, it lacked a core of useful functionality, so that most useful functions (e.g. lossless 24-bit colour) requires nonstandard, often redundant, extensions. The incompatibility of extensions has led some to expand "TIFF" as "Thousands of Incompatible File Formats". Compare GIF, PNG, JPEG.Last updated: 1997-10-11
tagged queueing
<hardware>
A method allowing a device or controller to process commands received from a device driver out of order. It requires that the device driver attaches a tag to each command which the controller or device can later use to identify the response to the command.
Tagged queueing can speed up processing considerably if a controller serves devices of very different speeds, such as an SCSI controller serving a mix of CD-ROMs and high-speed disks. In such cases if a request to fetch data from the CD-ROM is shortly followed by a request to read from the disk, the controller doesn't have to wait for the CD-ROM to fetch the data, it can instead instruct the disk to fetch the data and return the value to the device driver, while the CD-ROM is probably still seeking.Last updated: 1997-07-04
tagged types
Ada's type mechanism in which types can be extended via single inheritance.
Last updated: 2000-02-21
Nearby terms:
Tactile User Interface ♦ tag ♦ Tagged Image File Format ♦ tagged queueing ♦ tagged types
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