Pūtakerua: tauhanga me useability

Mai i te tamarikitanga e whakaako tatou ki mea e te hunga mahuinga ia i roto i te ora pakeke: ki te hanga i tetahi kaupae ohie huatau ki te korero, te pānui me te tatau. Pea mahara katoa pehea uaua i hoatu he kaute i roto i te kindergarten ranei i roto i te kura tuatahi, ko reira uaua ki te kia whakamahia ki te tātaki i te whika. I muri i te tahi mau wa, e pera waia ki te meka i hāngai katoa i runga i matou i te pūnaha ira (score, moni, wā), e kore e e ara whakapae i te oraraa o te tahi atu pūnaha (ano whānui e whakamahia ana i roto i ngā mara, hei tauira, i roto i te hanga ranei i te mara o IT ).

Ko tētahi o enei "kore-paerewa" maha o kōwhiringa ko te pūnaha ā-rua. Ka rite ki te ingoa titau, ngā te huinga katoa o ngā pūāhua i reira o 0 me 1. Ahakoa te mea te reira ohie, engari whakamahia te pūnaha pūtakerua te i roto i te uaua tino ki te rā pūrere hangarau - rorohiko me ētahi atu complexes aunoa.

whakatika te pātai: he aha koutou i whakatau e whakamahi koe i te reira, no te mea he nui māmā ake ki te arotahi ki runga i te 10 tau mua i te tangata? Ko te meka e te rorohiko - he mīhini e rere i te hiko, me tona hau ngohengohe he, i roto i te meka, te hātepe māmā o ngā mahi. whakaritea te pūnaha pūtakerua i te tirohanga o te rorohiko e ki te atu raupapa o ngā painga:

1. hoki te mīhini i reira e 2 āhua: rere kore ranei, i reira te mea he nāianei ranei kahore nāianei. E āhuatanga Ia o enei āhua i tetahi o nga pūāhua: 0 - "kahore", 1 - "ae."

2. Ko te ā-rua (ā-rua) ka taea pūnaha ki te faaohie i te maramara pūrere (i.e., nui ki te whai rua takere mō ngā momo rerekē o tohu).

Ko iti e pängia ana ki te raweketia me nohopuku 3. tenei pūnaha. wātea i te mate Noise no te mea te mōrea iti ohie, me te taea o te kore pūmanawa, engari no te mea te taurangi-rua, ko te realizable nui māmā atu i ira.

4. ngā mahi Boolean ki tau ā-rua ki te hanga nui māmā. Ko te tikanga, arorau taurangi (Boolean) auraa hoki mahara ki te tukanga matatini o te tohu transduction i roto i ngā pūnaha rorohiko hangarau.

Ki te ako koe i te motuhake hangarau, e mohio ana pea koe i te taketake o te māngai o tau i roto i te puka ā-rua. Ko te tikanga, ngawari te tangata i roto i taua mea, ngā mahi tātai ki 0 me te 1 e hiahiatia mō te maramarama hope hau atu o te rorohiko, e kua pono katoa.

Na, ki te kore me te kotahi e taea te mahi i te mahi tauhanga taua rite ki tau tikanga. I roto i tenei tuhinga, e kore matou e whakaaro ngā mahi pērā i koaro, tua modulo 2 me ētahi atu (pono motuhake).

Fakakaukau ki he founga te tua i roto i te pūnaha ā-rua. Hei tauira, ki te tāpiri e rua tau: 1001 me 1110. Mai te rere whakamutunga, kotuituitanga: 1 + 0 = 1, ka 0 + 1 = 1, te mahi e whai ake nei: 0 + 1 = 1, a te mutunga 1 + 1 = 10. Tapeke kua ka matou te tau 10111.

Subtraction i roto i ā-rua pūnaha tau whai te taua mau parau tumu. Tangohia hoki tauira te taua tau, engari inaianei tango 1110 i 1001. tiki ano ki te mati whakamutunga: 0-1 = 1 (haunga te 1 o te taumata i muri), huaina i ki rite te tauira. Tapeke 101.

Division me whakareatanga hoki i ngā rerekētanga taketake i roto i rite ki te mau parau tumu ta tatou e e whakamahia ki te puka-ira.

I tua atu ki te rua, ternary tono ki te rorohiko, ā-waru me te pūnaha tau hautekaumāono.