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Commvault
services commvault provides consulting services customers.company advises customers setting new data management systems architecture design implementation monitoring.remote managed service commvault manages software production customers.acquisitions september commvault announced would acquire softwaredefined storage st...
Comparison of antivirus software
see also list sp companies referencesdesktop mobile server etc.operating systems e.g.windows macos linux solaris android ios ubuntu touch windows phone etc.. legend term ondemand scan refers possibility performing manual scan user entire computerdevice onaccess scan refers ability product automatically scan every file ...
FastCGI
desktop computers servers windows macos linux solaris freebsd mobile smartphones tablets android ios windows mobile list excludes windows phone windows phone support running protection programs.symbian blackberry see also antivirus softwareavcomparatives – austrian organization testing antivirus security softwareavtest...
FastCGI
high loads operating system overhead process creation destruction becomes significant.also cgi process model limits resource reuse methods reusing database connections inmemory caching etc.to address scalability shortcomings cgi open market developed fastcgi first introduced webserver product mids.open market originall...
FastCGI
various methods including cgi remain common use.implementation details instead creating new process request fastcgi uses persistent processes handle series requests.processes owned fastcgi server web server.to service incoming request web server sends environment variable information page request fastcgi process either...
FastCGI
processing multiple requests concurrently done several ways using one connection internal multiplexing i.e.multiple requests one connection using multiple connections mix methods.multiple fastcgi servers configured increasing stability scalability.web site administrators programmers find separating web applications web...
FastCGI
web servers implement fastcgi note unless stated completeness fastcgi implementation unknownapache http server partialimplemented modfcgid.module used thirdparty granted apache software foundation asf apache server subproject shepherded chris darroch.supports unix domain sockets tcp sockets.a thirdparty module modfastc...
Google App Engine
since fastcgi protocol implementation tightly bound one language.application programming interfaces apis exist forrecent frameworks ruby rails catalyst django kepler plack allow use either embedded interpreters modruby modperl modpython modlua example fastcgi.references external links fastcgi web official site forkfast...
Google App Engine
supported featuresrestrictions runtimes framework google app engine primarily supports go php java python node.js .net ruby applications although also support languages via custom runtimes.python web frameworks run google app engine include django cherrypy pyramid flask webpy webapp well custom googlewritten webapp fra...
Google App Engine
javaserver faces operates workarounds.newer release app engine standard java beta supports java servlet .jetty.though integrated database google cloud datastore may unfamiliar programmers accessed supported jpa jdo simple lowlevel api.several alternative libraries frameworks use model map data database objectify slim j...
Google App Engine
apache struts supported struts runs workarounds.the django web framework applications running used app engine modification.djangononrel aims allow django work nonrelational databases project includes support app engine.reliability support billed app engine applications .uptime sla.app engine designed way sustain multip...
Google App Engine
bulk downloading sdk version .. adds support bulk downloads data using python.open source python projects gaebar approcket gawsh also allow users download back app engine data.method bulk downloading data gae using java currently exists.restrictions developers readonly access filesystem app engine.applications use virt...
Google App Engine
restriction exist app engine standard java runtime.a process started server answer request cant last seconds .. release restriction apply background jobs anymore.does support sticky sessions a.k.a.session affinity replicated sessions supported including limitation amount data serialized time session serialization.major...
Google App Engine
google cloud sql used app engine applications requiring relational mysql compatible database backend.perday perminute quotas restrict bandwidth cpu use number requests served number concurrent requests calls various apis individual requests terminated take seconds return mb data.differences sql gql google app engines i...
Google App Engine
response number projects create opensource backends various proprietaryclosed apis app engine especially datastore.appscale capedwarf typhoonae open source efforts.appscale automatically deploys scales unmodified google app engine applications popular public private cloud systems onpremises clusters.appscale run python...
Google App Engine
backend api deprecated march favor modules api.google cloud sql oct google previewed zero maintenance sql database supports jdbc dbapi.service allows creating configuring using relational databases app engine applications.google cloud sql supports mysql ..
Google App Engine
.. usage quotas google app engine requires google account get started account may allow developer register free applications unlimited number paid applications.google app engine defines usage quotas free applications.extensions quotas requested application authors pay additional resources.see also references bibliograp...
Virtual appliance
installation software appliance virtual machine packaging image creates virtual appliance.like software appliances virtual appliances intended eliminate installation configuration maintenance costs associated running complex stacks software.a virtual appliance complete virtual machine platform rather software image con...
Virtual appliance
file format commonly used open virtualization format ovf.may also distributed open virtual appliance ova .ova file format interchangeable .ovf.distributed management task force dmtf publishes ovf specification documentation.virtualization platforms including vmware microsoft oracle citrix install virtual appliances ovf...
Virtual appliance
adding virtual appliances picture allows extremely rapid provisioning grid nodes importantly cleanly decouples grid operator grid consumer encapsulating knowledge application within virtual appliance.infrastructure service virtual appliances critical resources infrastructure service cloud computing.file format virtual ...
Virtual appliance
software service rise virtualization platform hosted services provision virtual appliances come provide direct route traditional onpremises applications rapidly redeployed software service saas mode – without requiring major application rearchitecture multitenancy.decoupling hardware operating system infrastructure pro...
Uninterruptible power supply
underlying virtualization technology also allows rapid movement virtual appliances instances physical execution environments.traditional approaches saas fix application place hosted infrastructure.see also software appliancevirtual backup applianceturnkey linux virtual appliance libraryrpathbitnamisuse studiosoftware s...
Uninterruptible power supply
common power problems primary role ups provide shortterm power input power source fails.however ups units also capable varying degrees correcting common utility power problemsvoltage spike sustained overvoltagemomentary sustained reduction input voltagevoltage sagnoise defined high frequency transient oscillation usual...
Uninterruptible power supply
energy stored flywheel.mains power fails eddycurrent regulation maintains power load long flywheels energy exhausted.dups sometimes combined integrated diesel generator turned brief delay forming diesel rotary uninterruptible power supply drups.a fuel cell ups developed company hydrogenics using hydrogen fuel cell powe...
Uninterruptible power supply
incoming voltage falls rises predetermined level ups turns internal dcac inverter circuitry powered internal storage battery.ups mechanically switches connected equipment dcac inverter output.switchover time long milliseconds depending amount time takes standby ups detect lost utility voltage.ups designed power certain...
Uninterruptible power supply
special type transformer add subtract powered coils wire thereby increasing decreasing magnetic field output voltage transformer.may also performed buck–boost transformer distinct autotransformer since former may wired provide galvanic isolation.this type ups able tolerate continuous undervoltage brownouts overvoltage ...
Uninterruptible power supply
furthermore easier switching linevoltage side transformer lower currents side.to gain buckboost feature required two separate switches ac input connected one two primary taps load connected thus using main transformers primary windings autotransformer.battery still charged bucking overvoltage boosting undervoltage tran...
Uninterruptible power supply
also works reverse overvoltage condition ups need less current.onlinedoubleconversion online ups batteries always connected inverter power transfer switches necessary.power loss occurs rectifier simply drops circuit batteries keep power steady unchanged.power restored rectifier resumes carrying load begins charging bat...
Uninterruptible power supply
although one time reserved large installations kw advances technology permitted available common consumer device supplying w less.online ups may necessary power environment noisy utility power sags outages anomalies frequent protection sensitive equipment loads required operation extendedrun backup generator necessary....
Uninterruptible power supply
style ups targeted towards highefficiency applications still maintaining features protection level offered double conversion.a hybrid double conversion demand ups operates offlinestandby ups power conditions within certain preset window.allows ups achieve high efficiency ratings.power conditions fluctuate outside prede...
Uninterruptible power supply
transformer designed hold energy long enough cover time switching line power battery power effectively eliminates transfer time.many ferroresonant upss – efficient acdcac offer excellent isolation.the transformer three windings one ordinary mains power second rectified battery power third output ac power load.this domi...
Uninterruptible power supply
dc power ups designed powering dc equipment similar online ups except need output inverter.also upss battery voltage matched voltage device needs devices power supply needed either.since one power conversion steps eliminated increases efficiency run time.many systems used telecommunications use extralow voltage common ...
Uninterruptible power supply
rotary rotary ups uses inertia highmass spinning flywheel flywheel energy storage provide shortterm ridethrough event power loss.flywheel also acts buffer power spikes sags since shortterm power events able appreciably affect rotational speed highmass flywheel.also one oldest designs predating vacuum tubes integrated c...
Uninterruptible power supply
larger flywheel multiple flywheels operating parallel increase reserve running time capacity.because flywheels mechanical power source necessary use electric motor generator intermediary diesel engine designed provide emergency power.using transmission gearbox rotational inertia flywheel used directly start diesel engi...
Uninterruptible power supply
larger systems redundancy system ensures availability processes maintenance.batterybased designs require downtime batteries hotswapped usually case larger units.newer rotary units use technologies magnetic bearings airevacuated enclosures increase standby efficiency reduce maintenance low levels.typically highmass flyw...
Uninterruptible power supply
motor generator synchronoussynchronous inductionsynchronous.motor side unit case nos.driven directly ac power source typically inverter bypass step doubleconversion motor drive pulse inverter.case no.uses integrated flywheel shortterm energy source instead batteries allow time external electrically coupled gensets star...
Uninterruptible power supply
case nos.use batteries freestanding electrically coupled flywheel shortterm energy source.form factors smaller ups systems come several different forms sizes.however two common forms tower rackmount.tower models stand upright ground desk shelf typically used network workstations desktop computer applications.rackmount ...
Uninterruptible power supply
typically used server networking applications.devices feature user interfaces rotate ° allowing devices mounted vertically ground horizontally would found rack.applications n large business environments reliability great importance single huge ups also single point failure disrupt many systems.provide greater reliabili...
Uninterruptible power supply
way failure one module impact system operation.multiple redundancy many computer servers offer option redundant power supplies event one power supply failing one power supplies able power load.critical point – power supply must able power entire server itself.redundancy enhanced plugging power supply different circuit ...
Uninterruptible power supply
configuration also referred n redundancy.budget allow two identical ups units common practice plug one power supply mains power ups.outdoor use ups system placed outdoors specific features guarantee tolerate weather without effects performance.factors temperature humidity rain snow among others considered manufacturer ...
Uninterruptible power supply
outdoor environment could mean extreme cold case outdoor ups system include battery heater mat extreme heat case outdoor ups system include fan system air conditioning system.a solar inverter pv inverter solar converter converts variable direct current dc output photovoltaic pv solar panel utility frequency alternating...
Uninterruptible power supply
often utilize simple switching ac power supplies output resembles square wave rich harmonics.harmonics cause interference electronic devices including radio communication devices e.g.inductive loads ac motors may perform reduced efficiency all.sophisticated expensive ups units produce nearly pure sinusoidal ac power.po...
Uninterruptible power supply
input doubleconversion ups essentially big rectifier.current drawn ups nonsinusoidal.cause voltage ac mains generator also become nonsinusoidal.voltage distortion cause problems electrical equipment connected power source including ups itself.also cause power lost wiring supplying power ups due spikes current flow.
Uninterruptible power supply
level noise measured percentage total harmonic distortion current thdi.classic ups rectifiers thdi level around –.reduce voltage distortion requires heavier mains wiring generators twice large ups.there several solutions reduce thdi doubleconversion upsclassic solutions passive filters reduce thdi – full load.reliable ...
Uninterruptible power supply
newest technology doubleconversion ups units rectifier use classic rectifier components thyristors diodes uses highfrequency components instead.doubleconversion ups insulatedgate bipolar transistor rectifier inductor thdi small .completely eliminates need oversize generator transformers without additional filters inves...
Uninterruptible power supply
example single ups may connect single computer provide status information ups allow computer control ups.similarly usb protocol also intended connect single computer multiple peripheral devices.in situations useful single large ups able communicate several protected devices.traditional serial usb control signal replica...
Uninterruptible power supply
status control information typically encrypted example outside hacker gain control ups command shut down.distribution ups status control data requires intermediary devices ethernet switches serial multiplexers powered one ups systems order ups alerts reach target systems power outage.avoid dependency ethernet infrastru...
Uninterruptible power supply
larger systems data centers require detailed calculation load inverter efficiency battery characteristics ensure required endurance attained.common battery characteristics load testing lead–acid battery charged discharged initially affects reacting chemicals interface electrodes electrolyte.time charge stored chemicals...
Uninterruptible power supply
hours interface charge spread volume electrode electrolyte leading interface charge low may insufficient start car.due interface charge brief ups selftest functions lasting seconds may accurately reflect true runtime capacity ups instead extended recalibration rundown test deeply discharges battery needed.the deep disc...
Uninterruptible power supply
battery strings may also wired seriesparallel example two sets cells.situation also necessary monitor current flow parallel strings current may circulate strings balance effects weak cells dead cells high resistance shorted cells.example stronger strings discharge weaker strings voltage imbalances equalized must factor...
Uninterruptible power supply
issues also apply situations seriesparallel strings used ups systems also electric vehicle applications.consider seriesparallel battery arrangement good cells one becomes shorted deadthe failed cell reduce maximum developed voltage entire series string within.other series strings wired parallel degraded string discharg...
Uninterruptible power supply
newer cells may continue discharge rest string due low voltage energy flow may useful may wasted old cells resistance heating.for cells supposed operate within specific discharge window new cells capacity may cause old cells series string continue discharge beyond safe bottom limit discharge window damaging old cells.w...
Uninterruptible power supply
retrieved april vandee dawn march rounding rotary ups features ecm penton business media retrieved april ups basics.eaton corporation..retrieved .cite journal cite journal requires journal helpthe different type ups systems available archived original
Surespot
secure communication uses endtoend encryption default.history may channel news published investigation alleged least isislinked people appeared used surespot november may .june surespot user wrote blog post surespot developers stopped responding repeated questions regarding governmental demands information leading user...
Surespot
missing points past communications secure encryption keys stolen forward secrecy recent independent security audit.features surespot provides offline backup via itunes pc mac ios version local device storage android version.app users use multiple identities instance private business use.the application supports deletio...
Surespot
shared secret used exchange information securely.business model app free install use.via inapp purchases one add functionality voicemessage feature.apart earning money via inapp purchases surespot donationware.donations done via bitcoins creditcards paypal.
State data centre
see also comparison instant messaging clients references external links official websitesurespot githubmain purpose centres provide physical facility hosting various state level egovernment applications similar national informatics center nic provides national level applications.sdc project approved january part nation...
State data centre
addition sdc provide basic infrastructure implementing server side technologies viz.systems like web servers application servers database servers etc.different applications.services following types services expected provided sdcs.application web hosting.. support data application availability.. centralized network data...
State data centre
implementation implementation guidelines stated clearly government.guidelines found http key considerations project are.scalability.availability.security.
State data centre
manageability.reliability.migration distributed centralized environment.interoperability.compliance standards current progress since inception union government india spent total budget rs.
State data centre
.crores various states india.typically data centre takes – months setting getting operation.per data received official sources currently various states india different phases project realisation.many states successful making sdcs operational till date.
IBM Israel
states include gujarat west bengal tripura.furthermore sdcs implementation states like maharashtra uttar pradesh expected become functional end .referencesibms rd history israel began professor josef raviv established ibm israel scientific center technions computer science building haifa.today individuals work ibm rd l...
IBM Israel
handles projects spheres cloud computing healthcare life sciences verification technologies multimedia event processing information retrieval programming environments business transformation optimization technologies.hrl biggest ibm research center outside us.established back ibm israel scientific center ibm haifa rese...
IBM Israel
many employees received ibm awards achievements excellence.systems technology group lab stg incorporates former haifa development lab develops advanced technologies ibms systems technology group.stg lab israel involved three major activities storage technology deduplication software chip design.working closely israeli ...
HTTP Public Key Pinning
three main departments hardware development storage systems development diligent technologies.israel software lab ilsl develops software realtime collaboration content discovery text analytics metadata management application security soa .teams work closely lotus information management rational websphere brands ibms so...
HTTP Public Key Pinning
also user pin public keys root intermediate certificates created certificate authorities restricting site certificates issued said certificate authority.due hpkp mechanism complexity possibility accidental misuse browsers deprecated removed hpkp support favor certificate transparency expectct header.certificate authori...
HTTP Public Key Pinning
hpkp valid without backup key backup key defined public key present current certificate chain.hpkp standardized rfc .expands static certificate pinning hardcodes public key hashes wellknown websites services within web browsers applications.most browsers disable pinning certificate chains private root certificates enab...
Nintendo 3DS system software
hosts may either use http reporturi use alternative domain use reporting service.some browsers also support publickeypinsreportonly triggers reporting showing error user.criticism decline peak adaptation hpkp reported used top million internet sites figure declined around end .criticism concern revolved around maliciou...
Nintendo 3DS system software
nativefirm different new nintendo ds.the nintendo switch system software believed evolved nintendo ds system software.user interface home menu home menu graphical shell similar nintendo dsi menu wii u menu nintendo ds nintendo ds systems.used launch software stored nintendo ds nintendo ds game cards applications instal...
Nintendo 3DS system software
menu display application tiles applications sd card dsiware titles.upper screen special animated logo displayed individual app well system information wireless signal strength date time battery life bottom screen application icons displayed.also possible change screens brightness menu.using home button users suspend cu...
Nintendo 3DS system software
applications dragged top folder order move apps added folder using procedure apps per folder.title folder automatically created order creation name also edited user.first character title displayed folders icon.apps inside folders receive streetpass spotpass notifications notification icon appear top folderon june syste...
Nintendo 3DS system software
creating backup save data allows users delete software sd card without losing save data.backup created automatically restored user redownloads software nintendo eshop.total save data backups stored time.possible back save data retail versions nintendo ds software dsiware game boy advance software.on october .system upd...
Nintendo 3DS system software
badges act shortcuts access specific preinstalled applications streetpass mii plaza.nintendo ds camera nintendo ds camera builtin photo video recorder integrated media gallery photo editing functionality.app uses systems two frontfacing cameras take photos userfacing camera take regular photos.photographs taken resolut...
Nintendo 3DS system software
addition manual recording controls timers set take photo three ten seconds pressing take button means voice commands saying ok wishing take photo.sd cards hold photos.photo data size vary number may reduced two may decrease all.there various options filters available taking photos recording video.addition normal mode l...
Nintendo 3DS system software
realtime photo filters also available including sparkle adds moving stars photo dream adds dreamlike bright light photo pinhole lightens center screen darkens edges mystery adds random finish photo.also special mode called merge takes photo user facing inner camera merges photo someone facing outer cameras.on december ...
Nintendo 3DS system software
however recording modes allow single video ten minutes long.despite advanced predecessor software fewer features predecessor nintendo dsi camera.even theres enough free space sd card hold maximum combined total photos videos.nintendo ds sound nintendo ds sound builtin music player sound recorder.supported audio codecs ...
Nintendo 3DS system software
music played console sleep mode using systems headphone jack.using headphones included mic button button toggle playpause skip next previous track.set sound manipulation options available well several audio filters.tensecond voice recordings also recorded edited audio filters manipulated modulation playback speed.users...
Nintendo 3DS system software
used throughout applications swapnote.theres streetpass function builtinto app.user streetpasss someone also streetpass enabled users exchange song data songs name artist album release year many times played.also compatibility chart users involved.depending number matching songs users score displayed ranging latter com...
Nintendo 3DS system software
game application running user press home button suspend open home menu.possible open another specially designed multitasking application built system without closing currently suspended software.attempting open game application another already running result prompt.multitasking applications include game notes allows us...
Nintendo 3DS system software
discontinued.camera lightweight version nintendo ds camera features omitted accessed holding l r buttons unlike nintendo ds camera qr codes read camera.home menu settings section allows users change theme addremove badges change screen brightness toggle power saving mode time.miiverse internet browser disabled certain ...
Nintendo 3DS system software
new network infrastructure provides means unified online multiplayer experience online interactions leaderboards communication well software downloads streaming media services.the nintendo ds uses friend code system much like original wii connect network exception one code necessary console.makes much easier flexible p...
Nintendo 3DS system software
spotpass streetpass streetpass close proximity data exchange functionality allows game content exchanged nintendo ds systems.using consoles background connectivity sleep mode nintendo ds automatically discover nintendo ds systems within range establish connection exchange content mutually played games transparently wit...
Nintendo 3DS system software
spotpass also makes uses certified hotspots partners att north america cloud united kingdom.users able connect hotspots automatically free charge.content downloaded via spotpass include full game application downloads firmware updates patches specific ingame content.customized fit users preferences including opting alt...
Nintendo 3DS system software
feature allows users exchange streetpass data passing certified nintendo zone hotspot last nintendo ds user pass hotspot streetpass enabled.united states street pass relay points europe would see approximately .day later feature also became available japan.streetpass relay points later updated north america europe allo...
Nintendo 3DS system software
players meet players miis streetpass online nintendo network interact them.application players mii customized hats earned mini games along short customizable message information.new mii characters encountered system appear plaza gate.player use play various mini games encountering mii characters.meeting mii characters ...
Nintendo 3DS system software
application comes three minigames minigames purchased optionally.nintendo zone viewer nintendo zone viewer builtin application detects makes use certified spotpass hotspots.hotspot detected notification would appear systems home menu.application users could see game trailers game screenshots download game demos view in...
Nintendo 3DS system software
nintendo zone viewer discontinued north america .software updates history first version ds system software version .. released february included launch consoles.version .. released june internet features internet browser nintendo eshop system transfer nintendo dsi system released.version .released december added video ...
Nintendo 3DS system software
version .. released march adds ability download titles system sleeping.version .. released june added ability back save data.version .. released december added support nintendo network miiverse.version .. released july minor update.version .. preinstalled japanese launch new nintendo ds new nintendo ds xl systems.versi...
Nintendo 3DS system software
version .. preinstalled launch pal region new ds systems palnorth american new ds xl systems..preinstalled launch north american new ds systems.version .. released september .version .. released may security update.as july latest system version ... nomenclature nomenclature firmware version shown ds system settings div...
USB flash drive
possible letters china c europe australia e japan j south korea k taiwan americas u six regions exclusive firmware releases each.see also gaming platforms nintendonintendo dsi system softwarewii system softwarewii u system softwarenintendo switch system softwareother gaming platforms generationplaystation system softwa...
USB flash drive
tb flash drives largest available terms storage capacity.allow writeerase cycles depending exact type memory chip used thought physically last years normal circumstances shelf storage time.common uses usb flash drives storage supplementary backups transferring computer files.compared floppy disks cds smaller faster sig...
USB flash drive
ability retain data affected controllers firmware internal data redundancy error correction algorithms.until desktop laptop computers supplied floppy disk drives addition usb ports floppy disk drives became obsolete widespread adoption usb ports larger usb drive capacity compared .megabyte kibibyte .inch floppy disk.us...
USB flash drive
usb connector may protected removable cap retracting body drive although likely damaged unprotected.flash drives use standard typea usb connection allowing connection port personal computer drives interfaces also exist e.g.microusb usbc ports.usb flash drives draw power computer via usb connection.devices combine funct...
USB flash drive
history basis usb flash drives flash memory type floatinggate semiconductor memory invented fujio masuoka early s. flash memory uses floatinggate mosfet transistors memory cells.multiple individuals staked claim inventor usb flash drive.april amir ban dov moran oron ogdan msystems israeli company filed patent applicati...
USB flash drive
finally pua kheinseng malaysian engineer also recognized possible inventor device.given competing claims inventorship patent disputes involving usb flash drive arisen years.trek international netac technology accused others infringing patents usb flash drive.however despite lawsuits question first invent usb flash driv...
USB flash drive
file transfer rates vary considerably among devices.second generation flash drives claimed read mbs write half rate times faster theoretical transfer rate achievable previous model usb .limited mbits .mbs accounted overhead.effective transfer rate device significantly affected data access pattern.by usb flash drives us...
USB flash drive
connectivity mbits transfer rate upper bound accounting protocol overhead translates mbs effective throughput.year intel sparked widespread use second generation usb including within laptops.by maximum available storage capacity devices reached upwards gb.usb .slow appear laptops.majority laptop models still contained ...
USB flash drive
first usb .typec flash drives readwrite speeds around mbs announced march .july flash drives gb capacity sold frequently capacities gb tb.kingston technology announced release tb flash drive.sandisk announced tb usbc flash drive smallest kind.on usb flash drive one end device fitted single standarda usb plug flash driv...
USB flash drive
technology usb flash drive one end device fitted single usb plug flash drives additionally offer micro usb plug facilitating data transfers different devices.inside plastic casing small printed circuit board power circuitry small number surfacemounted integrated circuits ics.typically one ics provides interface usb con...
USB flash drive
limited capacity slow reading writing required complex highvoltage drive circuitry could rewritten erasing entire contents chip.hardware designers later developed eeproms erasure region broken smaller fields could erased individually without affecting others.altering contents particular memory location involved copying...