Video: Cov ntaub ntawv ntau npaum li cas peb raug nthuav tawm txhua hnub?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Txawm hais tias tib neeg tsis tuaj yeem nyeem cov 105, 000wordseach hnub no, qhov no yog tus lej tiag uas kwv yees tau ncav cuag tib neeg lub qhov muag thiab pob ntseg. txhua hnub . Tom qab ntxiv cov duab, yeeb yaj duab, games, thiab lwm yam, peb mus txog qhov ntim ntawm 34Gigabytes ntawm cov ntaub ntawv ib hnub nyob nruab nrab.
Hais txog qhov no, peb pom cov ntaub ntawv ntau npaum li cas txhua hnub?
Ntau tshaj 3.7 billion tib neeg siv internet (uas yog kev loj hlob ntawm 7.5 feem pua ntawm 2016). Qhov nruab nrab, Googlenow ua ntau dua 40,000 tshawb nrhiav txhua qhov thib ob (3.5billions tshawb nrhiav hauv ib hnub)!
Ib yam li ntawd, ntau npaum li cas cov ntaub ntawv tuaj yeem ua rau tib neeg lub hlwb? Hauv lwm lo lus, lub tib neeg lub cev xa 11millionbits ib ob mus rau lub hlwb rau kev, yettheconscious siab zoo li muaj peev xwm txheej txheem tsuas yog 50bits ib ob.
Qhov thib ob, pes tsawg cov ntaub ntawv koj lub hlwb tuaj yeem tuav hauv ib hnub?
Feem ntau cov kws tshawb fawb neuroscientists zoo li kwv yees lub peev xwm ntawm tib neeg qhov chaw ntawm 10 terabytes thiab 100 terabytes, txawm hais tias tag nrho spectrum ntawm kwv yees li ntawm 1 terabyte mus rau 2.5 petabytes. ( Ib terabyte yog sib npaug toabout1, 000 gigabytes lossis txog 1 lab megabytes; a petabyte isabout 1,000 terabytes.)
Cov ntaub ntawv ntau npaum li cas Google ua haujlwm ib hnub?
Google tam sim no txheej txheem tshaj 20 petabytes ntawm cov ntaub ntawv ib hnub los ntawm qhov nruab nrab ntawm 100, 000MapReduce cov hauj lwm sib kis thoob plaws nws cov computers loj heev.
Pom zoo:
Cov ntaub ntawv ntau npaum li cas Google ua haujlwm ib hnub?
Google tam sim no ua tiav ntau dua 20 petabytes ntawm cov ntaub ntawv ib hnub los ntawm qhov nruab nrab ntawm 100,000 MapReduce txoj haujlwm nthuav dav thoob plaws nws cov kev suav loj
Dab tsi yog tus lej ncaj qha uas yuav tsum raug tshem tawm ntawm cov ntaub ntawv tshawb fawb kom ua raws li kev siv cov ntaub ntawv txwv?
Cov ntaub ntawv qhia ncaj qha hauv qab no yuav tsum raug tshem tawm rau PHI kom tsim nyog raws li cov ntaub ntawv txwv: (1) Cov npe; (2) Cov ntaub ntawv chaw nyob xa ntawv, tsis yog lub nroog lossis nroog, xeev, thiab ZIP code; (3) xov tooj; (4) fax xov tooj; (5) email chaw nyob; (6) social security naj npawb; (7) cov ntaub ntawv kho mob; (8) kev npaj kho mob
Thaum cov lus tau hla tawm cov ntaub ntawv kuaj xyuas feem ntau nthuav tawm cov ntawv sau thawj nrog kev pab ntawm dab tsi?
Infrared luminescence yog siv rau: Qhia tawm cov ntawv sau uas tau muab tshem tawm THIAB kuaj pom yog tias ob tus lej sib txawv tau siv rau hauv kev sau ntawv. Cov kws tshuaj xyuas cov ntaub ntawv feem ntau nthuav tawm cov ntawv sau thawj ntawm cov lus uas tau hla nrog kev pab ntawm: Infrared tawg
Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?
Kem oriented databases (aka columnar databases) yog qhov tsim nyog rau kev ntsuas kev ua haujlwm ntau dua vim tias cov ntaub ntawv hom ntawv (kem hom) qiv nws tus kheej kom nrawm dua cov lus nug ua - scans, aggregation thiab lwm yam. Ntawm qhov tod tes, kab oriented databases khaws ib kab (thiab tag nrho nws. kab) contiguously
Ntau npaum li cas cov ntaub ntawv raug xa hauv Is Taws Nem txhua feeb?
Ntau tshaj 2.5 quintillion bytes ntawm cov ntaub ntawv raug tsim txhua hnub, thiab nws tsuas yog yuav loj hlob los ntawm qhov ntawd. Los ntawm 2020, nws tau kwv yees tias 1.7MB ntawm cov ntaub ntawv yuav raug tsim txhua thib ob rau txhua tus neeg hauv ntiaj teb.