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Topic: Mask (computing)

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Routing Information Protocol

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	Mask \| World of Computer Science
		A mask is a pattern of bits used as a filter to selectively accept or reject bits in a set of data.
		The binary image of a mask, commonly called a bit mask, is used to selectively reject or accept certain corresponding bits in a data value when the mask is used in an expression with a logical operator.
		When a "1" bit occurs in the mask, the bit in the data value remains the same, but when a "0" bit occurs in the mask, the bit in the data value is switched from 1 to 0 (while a 0 remains a 0).
	www.bookrags.com /research/mask-wcs (447 words)

	Mask (computing) Summary
		In computer science, a mask is some data that, along with an operation, are used in order to extract information stored elsewhere.
		The most common mask used, also known as a bitmask, extracts the status of certain bits in a binary string or number.
		A common type of mask of this type is a subnetwork mask, which is associated with a device's IP address and used to instruct a router which bits of the address indicate the subdivision of the network the computer is on and which identify the specific computer within the subnetwork.
	www.bookrags.com /Mask_(computing) (882 words)

	Shape from Light Fields - Experimental record
		Cell m3 was computed by forward projecting the absolute value of an unmasked filtered backprojection of the original (cell h1) using an occupancy mask (cell c1) derived from that backprojection using the usual (max-based) gradient operator.
		Noise in the occupancy mask is causing self-shadowing noise.
		The mask is the usual ramped blurred horizontal and vertical gradient of a filtered backprojection of a textured scene (cell g5).
	graphics.stanford.edu /~levoy/epi/epi_record1.html (13578 words)

	IP Routing Primer: Part One \| Full Story \| November 6, 2000
		The subnet mask is configured to tell the host or client which part is the network address and which part is the node address.
		With this type of subnet mask, the boundary between the network and node address is always on a dot between the last 255 and the first 0, sometimes referred to as the byte boundary.
		With this type of mask, seeing the binary version doesn't add any value, but later it will be necessary to see the binary data to fully understand masks that don't end neatly on one-byte boundaries.
	www.networkcomputing.com /netdesign/1122ipr-full.html (1523 words)

	High performance fracturing for variable shaped beam mask writing machines
		Mask manufacturing for the 100 and 65nm nodes is accompanied by an increasing deployment of VSB mask writing machines.
		The impact on the total turn-around time for a design is twofold: the time to get the data ready for the hand-off to the mask writer is growing but also the time it actually takes to write the mask is heavily influenced by the size and complexity of the data.
		The mask writing of a particular data set is affected by the file size and the shot count.
	www.mentor.com /products/ic_nanometer_design/techpubs/mentorpaper_15833.cfm (269 words)

	Table masking for resistance to power analysis attacks patent invention
		A mask table is also defined such that the values of each entry, masked with the corresponding random value, is the value of a fixed mask.
		The masked substitution tables and the mask tables may be used in cryptographic operations to permit the output of table look-ups to be masked, without directly using the fixed mask value in the computations of the cryptographic operations.
		In accordance with other aspects of the invention, such masked substitution tables and mask tables may be used in cryptographic operations carried out in accordance with the AES (Advanced Encryption Standard) and DES (Data Encryption Standard) approaches known to those in the art.
	www.freshpatents.com /Table-masking-for-resistance-to-power-analysis-attacks-dt20051124ptan20050259814.php (1363 words)

	Computing correlations between global brain mean intensity and the task
		The mask image that was used for model estimation can be viewed after statistics have been computed by displaying the mask.img file in the results directory.
		The group mask is the intersection between the individual subjects' masks, which means that even if only subject's mask was missing a certain region, this region will not be included in the group statistics.
		I have found it useful to define this explicit mask using the subject's normalised inplane anatomical image, by segmenting out the gray and the white matter from it, then combining them, and then smoothing it with a large kernel (20mm), in order to be really lenient as to which voxels would be included.
	www-psych.stanford.edu /~kalina/SPM99/Tools/glm_specmask.html (729 words)

	Masks Are Easy pg 5: Production Graphics with Wendy Peck at webreference.com
		Unlike the layer mask which becomes and integral part of the layer, Quick Mask is a temporary setting.
		Although the mask is shown in red to represent rubylith masking (a holdover from the pre-digital print industry), fl and white have the same effect as they do for layer masks.
		In the Quick Mask version of this operation, it is very clear what areas are protected and which are not, as well as the level of transparency at all points in the selection.
	www.webreference.com /graphics/column23/5.html (931 words)

	UofC :: Information Technologies (Site not responding. Last check: 2007-10-22)
		Personal computers may be connected to the University networks if the connections meet the requirements of the appropriate system or network administrator, and if the owner agrees to be bound by this policy.
		4.3.3 Computer administrators, with the approval of their supervisor and with due regard for the right of privacy of users and the confidentiality of their data, have the right to suspend or modify computer access privileges, terminate running programs and examine system tables or logs.
		All computer users may use computing resources only for purposes related to their research, their studies, the discharge of their duties, their official business with the university and their other university-sanctioned activities.
	www.ucalgary.ca /ucs/policy/comp_policy.html (6585 words)

	legend of zelda majoras mask guide (Site not responding. Last check: 2007-10-22)
		The Legend of Zelda: Majora's Mask Walkthrough/FAQ by toiletrabbit -THE LEGEND OF- ########## ## ### ######## #### ######.
		ledgend of zelda majoras mask - the ledgend of majoras mask zelda oracle of age rom - oracle of age rom legend of zelda - legend of legend of zelda...
		iron mask, subnet mask, zelda majoras mask cheat, legend of zelda majoras mask, the mask, goalie mask...
	www.popularcharacters.com /zelda/legend-of-zelda-majoras-mask-guide.html (3547 words)

	Smart Computing Article - The P’s & Q’s Of Your CRT (Site not responding. Last check: 2007-10-22)
		The distance between two same-colored phosphors is called the dot pitch for the shadow mask, the stripe pitch for the aperture grille, and the slot mask pitch for the slot mask.
		Since dot pitch is measured along a diagonal and stripe and slot mask pitch is measured along a horizontal, a smaller stripe or slot mask pitch equals a slightly larger dot pitch.
		Slot masks have a metal mask like a shadow mask, but the pixels are long and rectangular, resembling the stripes of an aperture grille.
	www.smartcomputing.com /editorial/article.asp?article=articles/archive/r0403/12r03/12r03.asp (3699 words)

	Dummies::Unmasking the Subnet Mask for the CCNA Exam
		A subnet mask, which contains a binary bit pattern of ones and zeros, is applied to an address to extract the network ID for purposes of determining whether an address is on the local network.
		The function of a subnet mask is to extract the network ID portion of an IP destination address and determine whether an IP address exists on the local network or whether it must be routed outside the local network.
		The default standard Class C subnet mask is 255.255.255.0 and its binary equivalent is 11111111 11111111 11111111 00000000.
	www.dummies.com /WileyCDA/DummiesArticle/id-2265.html (503 words)

	Masks Are Easy pg 6: Production Graphics with Wendy Peck at webreference.com
		Keep masks in mind though, even when you are creating art from scratch in PaintShop Pro, since they can be great time savers and help to provide consistency.
		We are going to first add a mask that covers the entire layer (we will discuss different mask creation methods a little later).
		Note that the mask is over the watering can in the photo above, but in the one at the right, the watering can is now exposed.
	www.webreference.com /graphics/column23/6.html (847 words)

	WDVL: Masks
		A mask is a 256 color Grey Scale bitmap similar to a stencil.
		Masks, in PSP 5, are easier to work with than they were in PSP 4, allow for greater flexibility due to the layer function and can now be saved to Disk or Alpha Channel.
		Invert mask data reverses the mask transparency causing fl to become white, white to become fl and shades of grey to become their mirror transparency.
	wdvl.com /Authoring/Graphics/Tools/PSP/masks.html (586 words)

	EETimes.com - Distributed computing shifts focus to self-managed systems
		Those systems will mask their growing complexity and interoperate with one another in useful, automated ways, according to a growing number of researchers.
		Foster is a senior scientist at Argonne National Laboratory, a professor of computer science at the University of Chicago and one of the leading researchers in grid computing.
		Computer makers are seeing that problem as their ticket to reaping revenue in a rapidly maturing computer industry by offering services along with increasingly automated systems.
	www.eetimes.com /issue/fp/OEG20020412S0056 (1568 words)

	PMK's Glossary of Vectorization Terminology
		Masks fit in one 64-bit scalar register on most Cray machines, but need 2 registers on a C-90 or Triton, where the maximum VL is 128.
		Masks are generated as the results of integer comparisons between vectors and zero, and also from IEEE floating-point comparisons on the most recent Tritons.
		Masks are presently used as input to merge operations and to the Triton's iota, compression, and expansion instructions.
	klausler.com /vecgloss.html (4559 words)

	Preparing Your Computer for Network Changes (Site not responding. Last check: 2007-10-22)
		Computing Services will notify you of your new IP address before your building is renumbered.
		Computing Services will also attempt to contact you after the IP addresses are reassigned and before routing is enabled in your building to make sure you make the change, but it's best to take care of it beforehand.
		On the day that routing is enabled in your building, you should update the network (subnet) mask, gateway and broadcast values in your configuration.
	www.cmu.edu /computing/dhcp/no-dhcp.html (235 words)

	Smart Computing Article - Tabloid Photography 101 (Site not responding. Last check: 2007-10-22)
		A mask is a grayscale image that covers up the portion of the layered image you don't want to see and reveals the portion you do want to see.
		Using a combination of layers and masks, video composites are similar to print ones.
		The weatherman is like a constantly moving fl mask, and the blue screen is the white area letting the second video shine through.
	www.smartcomputing.com /editorial/article.asp?article=articles/archive/l0808/30l08/30l08.asp&guid=pahs4yh0 (2532 words)

	What is subnet mask? - A Word Definition From the Webopedia Computer Dictionary
		A mask used to determine what subnet an IP address belongs to.
		The subnet mask is the network address plus the bits reserved for identifying the subnetwork.
		It's called a mask because it can be used to identify the subnet to which an IP address belongs by performing a bitwise AND operation on the mask and the IP address.
	www.webopedia.com /TERM/S/subnet_mask.html (345 words)

	Method and apparatus for determining an improved assist feature configuration in a mask layout patent invention
		In either case, assist features are meant to improve the depth of focus of the patterns on the mask layout intended to be printed on the wafer.
		Furthermore, in one embodiment, the objective function for the optimization problem is a linear combination of variables associated with the process-variation values at the evaluation points.
		Note that the system can compute the process-sensitivity model by computing a linear combination of the on-target process model and the one or more off-target process models.
	www.freshpatents.com /Method-and-apparatus-for-determining-an-improved-assist-feature-configuration-in-a-mask-layout-dt20060824ptan20060188673.php (1273 words)

	BU - Central Consulting
		The first digit is associated with the user (creator of the file), the second with the group, and the third with others.
		This mask is XORed (eXclusive ORed) with the access mode 666 for files or 777 for directories to determine the access mode for newly created files and directories.
		Since the mask is XORed with the octal number 666 or 777, which represent full permissions for user, group, and others (each digit in that order), the result is the opposite of what is represented by the mask; that is, the umask value specifies those access modes which are to be DENIED.
	www.bu.edu /cc/support/aboutunix/commands/umask (573 words)

	Pine Tree Computing, LLC - Camera Controller Page
		This allows the user to define a mask which will be filled in with the sequential number to generate a unique filename.
		Masks are literally the same as the VB Format function.
		A new slideshow tool is included that allows you to quickly create slideshows that can be copied to a CDROM or other distribution source and then played back without installing software on the target computer.
	www.pinetreecomputing.com /camctl_version.asp (2402 words)

	The Mask Group
		The Mask Group is a Information Technology consultig organization specializig in increasing productivity through the use of education and technology.
		The Masks Group's philosphy is to create synergistic relationship between technology, the end user, management and security.
		Studies have shown that an average computer user, uses only about 15% of the computing power and software on their computer.
	www.mask.com (275 words)

	Requirements of the POSIX Signal Model (Site not responding. Last check: 2007-10-22)
		[...]The signal mask for a thread shall be initialized from that of its parent or creating thread, or from the corresponding thread in the parent process if the thread was created as the result of a call to
		But recomputations are needed when the mask of a thread is changed or if a thread terminates (in the latter case only the bits for signals which are not blocked can change in the signal mask).
		When computing the process signal mask it is only necessary to find one thread which doesn't block the signal.
	people.redhat.com /drepper/posix-signal-model.xml (632 words)

	mask - OneLook Dictionary Search
		Mask, mask : LookWAYup Translating Dictionary/Thesaurus [home, info]
		Phrases that include mask: death mask, shadow mask, ski mask, gas mask, mask of pregnancy, more...
		Words similar to mask: cloak, dissemble, masked, masking, masque, masquerade, block out, conceal, domino, falseface, vizard, more...
	www.onelook.com /?w=mask&ls=a (480 words)

	Dummies::Getting to Know Quick Masks in Photoshop CS2
		Instead of defining your selection with a selection outline, masks define your selection with 256 levels of gray, which allows you to have varying levels of selection.
		Although you don't really create an end-product mask per se, the way you go about getting your selection is "mask-like." They are also user friendly in that they enable you to see your image while you're working.
		This red overlay is a visual carryover from back in the day when artists used Rubylith (red transparent material) to mask portions of their art during airbrushing.
	www.dummies.com /WileyCDA/DummiesArticle/id-3998.html (642 words)

	CNN.com - Technology - Review: The Legend of Zelda: Majora's Mask - November 1, 2000
		You'll find tons of masks throughout the world, some of which will disguise you or give you magical powers.
		Still, Majora's Mask wins in the graphics category, thanks to its whimsical and immersive design that takes you deeply into a world that, compared to the Dreamcast or PS2's best, looks a little simple.
		Majora's Mask is living proof that the N64 still has its magic.
	www.cnn.com /2000/TECH/computing/11/01/zelda.majoras.mask.idg (671 words)

	Use the VisiQuest Polymorphic Data Model for robust solutions to image and data analysis
		The volumes of value data can be given explicit locations in time with the time segment; a time-stamp may be given for each volume in time.
		A mask segment is available for marking value data validity.
		Mask Segment - Computing mean of valid data in array
	www.accusoft.com /products/visiquest/Polymorphic_model.asp (463 words)

	ContextSwitching - iDIA Computing (Site not responding. Last check: 2007-10-22)
		To prevent this, an interrupt mask is used to mask off, or disable, interrupts.
		When the mask is turned off, and interrupts reenabled, then an interrupt that occurred during the critical section will be notices and serviced.
		This is accomplished by automatically setting the interrupt mask to that level, masking lower priority interrupts but not higher priority ones.
	idiacomputing.com /moin/ContextSwitching (1718 words)

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