Imiphi imemori khadi ongayikhetha: ukubuka konke okuphakathi kwamakilasi namafomethi amakhadi we-SD

Sawubona

Cishe noma yikuphi idivayisi yesimanje (kungaba yifoni, ikhamera, ithebulethi, njll) idinga imemori khadi (noma ikhadi le-SD) ukuqedela umsebenzi walo. Manje emakethe ungathola inqwaba yezinhlobo zememori amakhadi: ngaphezu kwalokho, ahluke kakhulu ngamanani nangevolumu kuphela. Futhi uma uthenga ikhadi elingalungile le-SD, idivayisi ingasebenza "kabi kakhulu" (isibonelo, ngeke ukwazi ukurekhoda ividiyo ephelele ye-HD kwikhamera).

Kulesi sihloko ngingathanda ukucubungula yonke imibuzo ejwayelekile mayelana namakhadi we-SD nokukhetha kwabo amadivaysi ahlukahlukene: ithebhulethi, ikhamera, ikhamera, ifoni. Ngithemba ukuthi lolu lwazi luzoba usizo kumbuthano omkhulu wabafundi bebhulogi.

Amakhadi wekhadi lokukhumbula

Amakhadi okukhumbula akhona ngamasayizi amathathu ahlukene (bheka umkhiwane 1):

• - MicroSD: uhlobo oludumile kakhulu lwekhadi. Isetshenziswe kumafoni, amaphilisi namanye amadivayisi aphathekayo. Ubukhulu bekhadi lememori: 11x15mm;
• - I-MiniSD: uhlobo oludumile kakhulu lwekhadi, olutholakala, njengesibonelo, kuma-mp3-abadlali, amafoni. Ubukhulu bemephu: 21,5x20mm;
• - I-SD: mhlawumbe uhlobo oludumile, olusetshenziselwa amakhamera, amakhamera, abarekhoda namanye amadivayisi. Cishe zonke i-laptops zanamuhla namakhompyutha zihlomele abafundi bekhadi, okuvumela ukuba ufunde lolu hlobo lwekhadi. Ubukhulu bemephu: 32x24mm.

Umdwebo. 1. Amafomu eFomu amakhadi e-SD

Inothi elibalulekile!Naphezu kokuthi lapho uthenga, ikhadi le-microSD (isibonelo) liza ne-adaptha (i-Adapter) (bheka umfanekiso wesi-2), akukhuthazwa ukuyisebenzisa esikhundleni sekhadi le-SD evamile. Iqiniso liwukuthi, njengoba umthetho, i-MicroSDs ihamba kancane kune-SD, okusho ukuthi i-microSD efakwe ku-camcorder isebenzisa i-adapter ngeke ivumele ukurekhoda ividiyo ephelele ye-HD (isibonelo). Ngakho-ke, kufanele ukhethe uhlobo lwekhadi ngokuhambisana nezidingo zomkhiqizi wedivaysi lapho kuthengwa khona.

Umdwebo. 2. I-adapter ye-MicroSD

Ukusheshisa noma ekilasini Ikhadi lememori le-SD

Ipharamitha ebaluleke kakhulu yanoma iyiphi imemori khadi. Iqiniso liwukuthi isivinini asincike kuphela kumanani wememori khadi, kodwa futhi kudivayisi engasetshenziswa ngayo.

Ijubane lememori khadi livame ukubizwa ngokuthi i-multiplier (noma usethe isigaba seememori khadi.) Ngendlela, isigaba se-multiplier kanye nememori khadi "sixhunyiwe" komunye nomunye, bheka ithebula elingezansi).

Abakhiqizi abahlukene babhala amakhadi abo ngokuhlukile. Isibonelo, kumakhiwane. 3 ibonisa imemori khadi neklasi le-6 - ijubane layo ku-acc. netafula elingenhla, elilingana no-6 MB / s.

Umdwebo. 3. I-Transced SD Class - isigaba 6

Abanye abakhiqizi babonisa hhayi kuphela iklasi kwimemori khadi, kodwa futhi ijubane layo (bheka Fig. 4).

Umdwebo. 4. Isivinini siboniswa ekhadini le-SD.

Yisiphi isigaba sebalazwe esifana nomsebenzi - ungathola etafuleni elingezansi (bheka Fig. 5).

Umdwebo. 5. Iklasi nenhloso yememori khadi

Ngandlela-thile, ngiyaphinda ngilalelele imininingwane eyodwa. Uma uthenga imemori khadi, bheka izidingo zedivaysi, okuyinto edingekayo ekusebenzeni okujwayelekile.

I-Memory Card Generation

Kunezizukulwane ezine zememori amakhadi:

• I-SD 1.0 - kusuka ku-8 MB kuya ku-2 GB;
• I-SD 1.1 - kufika ku-4 GB;
• I-SDHC - kufika ku-32 GB;
• I-SDXC - kufika ku-2 TB.

Zingafani ngevolumu, ijubane lomsebenzi, kuyilapho zibuyela emuva zihambisana nomunye nomunye *.

Kukhona iphuzu elibalulekile: idivayisi isekela ukufunda amakhadi we-SDHC, ingafunda kokubili amakhadi we-SD 1.1 ne-SD 1.0, kodwa ayikwazi ukubona ikhadi le-SDXC.

Indlela yokuhlola usayizi wangempela kanye neklasi lememori khadi

Ngezinye izikhathi akukho lutho oluboniswa kumemori khadi, okusho ukuthi ngeke siqaphele ivolumu langempela noma iklasi yangempela ngaphandle kokuhlolwa. Ukuhlola kukhona insiza eyodwa kakhulu - H2testw.

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H2testw

Indawo esemthethweni: //www.heise.de/download/h2testw.html

Insiza encane yokuhlola amakhadi omemori. Kuzoba usizo ekuthengiseni abathengisi abangathembeki nabakhiqizi bememori khadi, okubonisa imingcele ye-overestimated yemikhiqizo yabo. Futhi, ukuhlola amakhadi we-SD "angaziwa".

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Emva kokuqala ukuhlolwa, uzobona ngefasitela elifanayo njengesithombeni esingezansi (bheka Fig. 6).

Umdwebo. 6. H2testw: ukubhala isivinini 14.3 MByte / s, inani langempela lememori khadi lingu-8.0 GByte.

Ukukhethwa kwekhadi lememori for tablet?

Amaphilisi amaningi emakethe namuhla asekela amakhadi okukhumbula imemori ye-SDHC (kufika ku-32 GB). Kukhona-ke, amaphilisi kanye nokusekelwa kwe-SDXC, kodwa amancane kakhulu futhi ayabiza kakhulu.

Uma ungahle uhlele ukudubula ividiyo ngekhwalithi ephezulu (noma une ikhamera yesinqumo esincane), ngisho noma imemori khadi ye-4 kuyokwanele ukuthi ithebulethi isebenze kahle. Uma usuhlela ukurekhoda ividiyo, ngincoma ukukhetha imemori khadi kusuka ekilasini lesithupha kuya kwezingu-10. Njengomthetho, umehluko "wangempela" phakathi kweklasi le-16 nele-10 akuyona into ebaluleke kakhulu yokuyikhokhela ngaphezulu.

Ukukhetha imemori khadi yekhamera / ikhamera

Lapha, ukukhetha imemori khadi kufanele kuhanjiswe ngokucophelela. Iqiniso liwukuthi uma ufaka ikhadi ekilasini elingaphansi kunekhamera idinga - idivayisi ingase ihlale ingazinzile futhi ungakhohlwa ngevidiyo yokudubula ngekhwalithi elihle.

Ngizokunika iseluleko esisodwa esilula (futhi okubaluleke kakhulu, i-100% esebenzayo): vula iwebhusayithi esemthethweni yomakhi wekhamera, bese ulandela imiyalelo yomsebenzisi. Kufanele ibe nekhasi: "Amakhadi akhangisiwe" (okungukuthi, amakhadi we-SD okwenziwa umenzi!). Isibonelo siboniswa kumdwebo. 7

Umdwebo. 7. Kusukela kumilayezo ukuya ekhamini nikon l15

PS

Iphuzu lokugcina: uma ukhetha imemori khadi, unake umenzi. Ngeke ngifunde okuhle kunazo zonke phakathi kwazo, kodwa ngincoma amakhadi okuthenga wamakethi awaziwa kuphela: SanDick, Transcend, Toshiba, Panasonic, Sony, njll.

Yilokho konke, wonke umsebenzi ophumelelayo kanye nokukhetha okulungile. Ngezingezo, njalonjalo, ngizobonga 🙂