Rorohiko, Hōtaka
Me pēhea te ki te iriti i paita ki mekapaita me hoki?
I teie mahana he pakeke i to tatou ora ki te whakaaro, kahore rorohiko. E kitea ratou wahi katoa. Ko te kupu "moka", "paita", kua riro "mekapaita" wahi o to tatou oraraa. maha whakamahi iwi noa ratou, kahore i mohio he aha te ratou tikanga me pehea ki te pā ki tahi i te tahi.
Bits, kilobits ...
Bit - te wae iti o ngā mōhiohio ā-rua. More ïa, tona rahinga. E pā ana tēnei ki te kōrero e pā ana ki tetahi o nga āhua e rua o te ahanoa. Hei tauira, he tohu / kahore tohu, pono / teka, 1/0, a na i runga i. G. Mai te ingoa Pākehā Ka taka whakaiti bi seminelí t Digi ( "rua") = moka. Na "moka" e pā ana ki tetahi mati o te waehere pūtakerua. I roto i tenei take, māngai he mati-ira te rite te kore tetahi ranei, mo te tauira rite whakaaturia i roto i te tepu. huaina ana tēnei ko te "pūnaha ā-rua o te mata'ifika ko."
| mati ā-ira | waehere-rua | mati ā-ira | waehere-rua |
| 0 | 0 | 5 | 101 |
| 1 | 1 | 6 | 110 |
| 2 | 10 | 7 | 111 |
| 3 | 11 | 8 | 1000 |
| 4 | 100 | 9 | 1001 |
I taea te kite nga tau 0 me te 1, i te taua kanohitanga me he ōrite ira rua paraire - 10. A i te waru - wha (1000).
Na te aha te mea kilobits?
Ko te whakamahi tino whānui o tenei pūnaha tau i kitea i roto i te hangarau rorohiko. I roto i ngā, i te tau ā-rua whakamahia ki te maha o haamana'oraa mamati.
Ko te tauira i konei. He rite ki tetahi maha o rua i roto i te tahi mau N. whānuitanga ranei te kore te maha o ngā wāhitau katoa taea i runga i te pahi wāhitau - 2 N. Here, tohu N te maha o nga paraire o te pahi. Eaha ta tatou e kite? He rite ki te tahi i te tahi e aore te maha o ngā pūtau i roto i te maramara mahara tohu o 2. A ka - noa atu ngā. Tau 2 10 = 1024 he tata rawa ki te 1000. I te wa ano, mano o whakamahia rite te pūtake mo te kuhimua ira. Na reira, i huaina 1024 paraire i "kilobits". Na roto i te faaauraa ki te karamu kiro ranei kiro mita. haamana'o nei au i te talanoa, whakaaturia i runga ake.
Paita me paraire
O te rorohiko mohiotia pūtaiao e whai ake. i huaina "Paita" (eng. Paita) ko te wae rokiroki, me te tukatuka o ngā mōhiohio mamati. tohu te reira i te maha o nga paraire wā tukatuka rorohiko. Ko te he aronui.
whakamahi pūnaha rorohiko Modern paita tënei o 8 paraire. Nā tēnei, kia tangohia e te reira 256 (2 8) uara rerekē.
Ki te tahuri paita ki mekapaita, tika mahi. Tātai hoki te toru o nga piha haapiiraa: 1 kiropaita = 1024 bytes. Kia mahara e pā ana ki te Hui-tanguru 10? He 1 MB = 1024 KB (m. E. 2 @ 20 = 2x10 2) = 1048576 bytes.
tono
Nuinga o ngā wā, i te ngā paita whakamahia i roto i ngā pūnaha rorohiko, me paraire - i roto i whatunga tuku raraunga. Ko te tikanga, no te tere inenga.
Ko te tauira i konei. whakarato whatunga Itarangi he auau raraunga i roto i te whānuitanga o te 10 Mbit / s ki te 1 GB / s. kia atu e tuhia e, rite ki te tikanga, ngā paita denoted e te pukapuka "B" (ranei Latin «B»). "Moka" ka tuhia. tohua te kuhimua "kiro" e reta "K". Ko te whakapaipai, kaua ki te pūriki. te ingoa o te kuhimua ira "kiro", arā te "k" iti te tuhituhi Maehe 10 = 1000. Na whakaaro i roto i te taipitopito atu te pātai e whai ake nei.
pīmua ā-rua, me te ira
Me pēhea te ki te iriti i paita ki mekapaita, nui atu iti iho ranei mārama. I roto i te tīmatanga o 1999, te whakahaere pai-mohiotia IEC (International Electrotechnical Commission) hoatu ki tohanga pīmua ā-rua ki te hanga i ngā wae maha o te nui o te mōhiohio. Ko te take hoki tenei i te tau pātata 1024 me 1000. Oia atoa, whakamahia arohere ira tikanga te pūnaha SI, rerekē-rua anake i whakakapi i te haukūoro whakamutunga i roto i "bi" (i binarius Latin - rua). titiro te reira i rite whakaaturia i roto i te ripanga i raro nei.
| kuhimua | whakapotonga whāngai i te IEC, paita / paraire | Ko te hāngai ira kuhimua | Ko te nui e nei whakanuia e te taketake uara o te nui o te kōrero |
| KIBI | KiB (KiB) / KIBIT | toka (10 3) | 1024 2 10 ranei |
| mebi | MiB (MiB) / Mibit | mega (10 6) | 1048576 ranei Feb. 20 |
| HIBI | Kahupapa (kahupapa) / Gibit | Giga (10 9) | 1073741824 ranei 2 30 |
| Taby | TiB (TiB) / Tibit | Tera (10 12) | Ranei 40 1099511627776 2 |
| PEBI | PIB (PiB) / Pibity | mōkai (10 15) | 1125899906842624 2 ranei 50 |
| eksbi | ETC (EiB) / Eibit | exa (10 18) | Ranei 2 1152921504606846976 60 |
| zebi | Zib (ZiB) / Zibit | zetta (10 21) | 1180591620717411303424 ranei 2 70 |
| yobi | YiB (YiB) / Yibit | yotta (10 24) | 1208925819614629174706176 ranei 2 80 |
Ko te paerewa whāngai e whenua maha, engari te ingoa tomo e whakamahia iti pinepine, i roto i te tuhituhi te nuinga, me te waha - tata kore. Me pēhea te ki te kitea e tika ana ki te cacophony. Pea na. whakaae koe e kilobits oro tupukoso atu kibibit me mekapaita pai atu i mebibytes.
Iriti paita ki mekapaita mārama. Otiia e kore e katoa te e. Heoi tawhiti, i reira e rua huarahi ki te hanganga o te info taurea. Ko te pātai noa atu huanane ko e hia kei roto i te 1 mekapaita o ngā paita.
Ko te huarahi tuatahi
.. I roto i te reira i te kuhimua "kiro," "mega," etc. e whakamahia rite te-rua mo nga take e whai ake nei:
Ko te kaiwhakahaere kōnae me ētahi atu pūmanawa i te tautuhinga rahi kōnae haapotohia. Hei tauira, pūrongo te hōtaka e te rahi record ko 10 MB. Ko te ara matarohia ki te whakawhiti paita i mekapaita, whakaaro te rahi o te mea rite ki te 10485760 bytes. Ko te kaiwhakahaere kōnae o ngā whanaketanga tata tutuki te dimensioning paerewa - te whakamahi i te whakapotonga o arohere ā-rua, taua MiB (MiB). - Manufacturers pūmahara uru tupurangi, kāri mahara flash, mahara ataata.
- homai rōrahi CD-ROM e anake i roto i mekapaita takirua.
Ko te huarahi tuarua
Tenei e whakamahia te tamahanahana rite te ira i roto i te wā e whai ake nei:
puku Hard me optical. Ratou mata rōrahi i roto i mekapaita ira. Okotahi: CD, kua tohua i roto i te rua nei kaha. - kōrero ōpaki. I roto i tenei take, nga uara o te pakeke te häunga. Hei tauira, e taea te mea te rōrahi o e pā ana ki 10 miriona paita o kōnae e reira "e ata" 10 mekapaita. He aha te kite tatou i konei? I roto i tenei take, e kore te mea tika katoa te paita i roto i mekapaita whakawhitia, engari kei te tango kōrero wahi.
- Ti'araa o te tere hononga aratuku. Hei tauira, tangohia te paerewa 100BASE-TX. I roto i te reira 100 Mbit / s auau raraunga hāngai rite 100 miriona paraire / s. Kia titiro a i te "kakama" pūhui ake ki te 10 Gbit / s (paerewa 10GBASE-X). hāngai te reira i rite 10 piriona paraire / s. Ko te reira. A e kore e he bit atu iti iho ranei.
Otiia ki te toru-inihi kōpae pīngore 1.44 MB (mahara te hunga?) I noa atu ngā. tohua ratou kaha i roto i te mekapaita ira pūtakerua-ā. I rite te reira e whai ake. Ko tētahi taua "mekapaita" ko KiB ko 1000, i te mea āhua 0,977 MiB, engari i te kotahi wā 1 pera a KiB 1024 bytes.
Me kï reira e reira ko te rerekētanga i waenganui i enei tamahanahana kōwhiringa tāpaetanga rua. I roto i te take Kiropaita e kore e nui te reira 2.4%, ka hoki te mea kua he mekapaita 4.9% ki GB - 7.4%, me mo te terapaita - tata 10%. O te akoranga, e kore i roto i te manakohia o te kanohi pūtakerua. E. "Tahae" to tatou paita kaihanga. Hei tauira, hoko he kaha puku mārō o te 1 TB. Ka rite ki te tangata e kua ako pūtaiao rorohiko, te karakia koutou whakapono e reira 1099511627776 bytes. A ka tahuri te reira i roto i - "anake" 1000000000000. Ko, kua "ngaua atu" koe neke atu i te 99.5 piriona paita (āhua 98 GB). He rota ranei he iti? Pakeke - i 40 ki te 200 kiriata roa-tonu, i runga i te hōputu. Kahore mea e pā ana ki te aha? E., rite tuhituhia i runga, te whakatekau.
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