SDHC Memory Cards: tarihi na ci gaba da fasaha fasali

Daga cikin mafi nasara flash memory matsayin kyauta a yau duniya kasuwar - SD. Daya daga cikin mafi mashahuri na da iri - SDHC. A kan tushen da dacewa duniya ta manyan fasahar brands nuna isasshe m ne kuma abin dogara katin ƙwaƙwalwar ajiya. Mene ne siffofin da misali? Kamar yadda akwai na'urorin da cewa goyi bayan SDHC?

Bayani dalla-dalla SDHC katin

SDHC katin ƙwaƙwalwar ajiya (ko wani Secure Digital High Capacity) ne na'urorin da cewa aiki a kan misali, wanda ya zama m fasahar cin flash memory irin SD, ci gaba da SD Card Association. A peculiarity na wadannan na'urorin - cewa ƙãruwa iya isa 32 GB. Fayil tsarin, wanda aka fi amfani da irin wannan a kan memory cards - FAT32.

Daya daga cikin nagartacce a cikin abin da za a iya samar SDHC katin ƙwaƙwalwar ajiya - micro. Amma a wannan yanayin, tare da na'ura, kamar yadda mai mulkin, shi wajibi ne don amfani da SD-adaftan, ta hanyar abin da dangane zuwa PC ko wasu na'urar, yin amfani da flash memory.

Yawancin lokaci da ya je bundled tare da memory kayayyaki a micro misali.

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Ya kamata a lura da cewa dacewa misali SDHC katin ƙwaƙwalwar ajiya ba zai dace da na'urar da asali tsara don aiki tare da al'ada SD-cards. Da cewa shi da hannu qa'ida ta bangaren tushen magance (kamar wuya tafiyarwa), kamar yadda sun yi tsayayya da wani byte cewa an aiwatar a baya ƙarni na memory cards.

Tarihi SD-katin ci gaba

Kafin duniya IT-injiniyoyi an ci gaba da goyon bayan SDHC katin ƙwaƙwalwar ajiya misali, an riga da dogon da tsanaki aiki daga cikin manyan brands da masana'antu su ne na daidai da kara adaptability na flash na'urorin amfani ga adanar fayiloli. Saboda haka, a cikin 1999, kamfanin SanDisk, Toshiba, kuma Matsushita sun yanke shawarar kafa wani sabon misali - SD, ko Secure Digital. Abin da ya ta bayani dalla-dalla?

Da farko, a cikin goyon bayan DRM a bisa ka'idar da SDMI. A cewar manufar samarwa da uku brands ambata a sama, da SD-format katin ƙwaƙwalwar ajiya da yin gasa da riga sanannun kasuwar daga Sony Memory Stick fasaha. Uku iri da sababbin kungiya da ake kira SD Assiciation. Daga bisani, a cikin tsarin da ya hada da manyan brands - kamar, misali, Intel, AMD, Samsung, Apple.

Kamar yadda wani ɓangare na SD fasahar saki 4 babbar tsara flash cards. The sosai farko aiki fasahar SD 1.0, shi ne iya sanya bayanai a wani juz'i na 2 har zuwa GB, na biyu - SD 1.1, aiki a cikin ikon yinsa, daga fayiloli zuwa 4GB. Iyaka, wanda aka halin ƙwaƙwalwar ajiya SDHC - 32GB. A gaba ƙarni na flash memory - for SDHX misali, za a iya saukar da har zuwa 2 terabytes na fayiloli.

Yana amfani da SD-cards da waɗanda cewa goyi bayan SDHC misali a da dama aikace-aikace na dijital fasaha. Dace Soup iya kira a matsayin yan dako na kusan iri daban-daban na fayiloli. Kwarai yi a cikin bangare na yin amfani da su zuwa photo- da video kayan aiki. SD-katunan ne samuwa, abin dogara. Miya, aiki a kan SDHC fasahar - an kuma halin da kyau damar.

Ta yaya SDHC katunan?

Yadda shi ya zo a kan kasuwar SDHC katin ƙwaƙwalwar ajiya IT-na'urorin? A farko na'urorin da cewa aiki a cikin SD misali, kamar yadda muka gani a sama, da farko sanya a kanta kawai har zuwa 2 GB na bayanai. Na dogon lokaci da wannan hanya isa ya yi na asali mai amfani da ayyuka - kamar ajiye your takardun, photos, music fayiloli.

A hankali da bukatun masu kwakwalwa karu. A 2006, wani sabon, mafi misali na flash memory - SDHC. A wannan shekarar da kamfanin SD Associations ya kuma ci gaba a yawan azuzuwan for daidai gudun na'urorin. A cikin kowanne daga wadannan gyarawa m darajar gudun (a MB / s) don karatu ko rubutu fayiloli.

SDHC memory cards, a general jimre da mai amfani da ɗawainiya. Duk da haka, da bukatun da masu goyon baya na dijital lantarki na ci gaba da girma. Saboda haka akwai SDXC misali, shafi na jeri na 2 har zuwa tarin fuka da fayiloli. Ko da yake, ya kamata a lura, a cikin bude kasuwar kama na'urorin suna rare da su da tsada (mai rahusa, kamar yadda mai mulkin, saya na waje rumbun).

Fayil tsarin da aka shigar a kan sabuwar SD-cards - exFAT, FAT32 zama kara ci gaba da. Daga cikin muhimman abũbuwan amfãni daga cikin sabon misali samarwa da Microsoft - rage a cikin tsanani da overwriting data a daya bangaren.

Yadda za a zabi ganiya SD-katin?

A wasu lokuta, kafin PC masu amfani iya zama wani batun, shi ne mafi alhẽri saya - SDHC Memory Card ko, misali, na'urar a kan SDXC misali? A duk ya dogara da farko a kan so na'urar iya aiki. Wani rarrabẽwa - jituwa kwamfuta ko wasu na'urar da dace misali. Gaskiyar cewa na'urorin - kyamarori, inji mai kwakwalwa, katin masu karatu, da haihuwa model ba ko da yaushe goyan bayan flash memory, wadda aka saki a cikin sabuwar fasahar. A daidai wannan lokaci, shi ne lura da cewa tallafa wa wadanda ko wasu matsayin mai yiwuwa dogara da ba kawai a kan hardware fasali devaysa, amma kuma a kan version na firmware a kan shi. Yana iya zama cewa wani sauki software inganci za su taimaka da na'urar - misali, wannan cell, koyi don gane SDHC ko SDXC katin ƙwaƙwalwar ajiya latest.