Mene ne wani Tantancewar Disc? CD-ROM drive, Laser da sauran Tantancewar fayafai

A rayuwarmu muna da tabbaci da dama data aiki da kuma ajiya. A m da aka buga takarda archives. Mene ne zamani kafofin watsa labarai?

Tantancewar drive: tarihin halittar

A farko na'urar for adanar audio rikodin aka samar da Sony baya a shekarar 1979. An wakilta, kamar yadda a yanzu, da roba Disc tare da wani madauwari rami a cibiyar. Da farko an yi amfani ne kawai ga rikodin audio fayiloli, da kuma bayani a kan shi da aka amfani da su a musamman Hanyar coding Pulse Code daidaitowa. Yana ta'allaka ne da cewa rubutu ko sauti wuce ta analog-to-dijital Converter da kuma tuba a cikin wani sa na ragowa.

Daga baya, a shekarar 1982, Jamus ta fara taro samar da CDs. Su suna sayen adanar da dama fayiloli. Ba da da ewa, sun kasance a kan shelves ba kawai music Stores.

Ta yaya za a iya shirya CD? Sansanonin amfani Manufacturing 1,2-millimeter kauri polycarbonate farantin 120 mm diamita, wanda aka farko mai rufi da bakin ciki Layer daga karfe (zinariya, aluminum, azurfa da sauransu. D.), Kuma a sa'an nan varnish. Wannan bayani ne amfani da karfe a cikin nau'i na rami (indentations) extruded tare da wani karkace hanya. Karanta fayilolin da aka rubuta a kan Tantancewar faifai, Yana faruwa ta wajen wani Laser katako da wani zango na 780 nm. An nuna daga surface na farantin, shi ya musanya masa a lokaci da kuma tsanani fadowa a cikin rami. Ara ma kira gibba tsakanin rami. Mataki na audio hanya located in Helix ne kamar 1.6 microns.

Iri Tantancewar fayafai

Akwai da dama iri CD: Karamin Disc (CD), Digital m Disc (DVD), Blu-ray Disc (BD). Su duk da daban-daban damar zuwa rikodin bayanai. Alal misali, DVD-fayafai ake samar a iya aiki daga 4.3 zuwa 15.9 GB, kuma CD - kawai 900 MB.

Haka kuma an bambanta da rikodi fayafai multiplicity: guda da mahara. A irin kafofin watsa labaru daban dimbin yawa taimako tsarin rami. Overwrite rikodi ne yiwu godiya ga Organic abu cewa, a karkashin mataki na Laser darkens da kuma canje-canje reflectivity. A na kowa parlance, wannan tsari shine ake kira kona.

Wani Tantancewar kafofin watsa labarai za su iya bambanta form. Siffa CDs (dimbin yawa CD) ana amfani a cikin nisha kasuwanci kamar yadda waliyyan audio da video files. Sun zo a cikin wani siffar (square, a cikin hanyar wani jirgin saman ko a zuciya). Amfani da su don CD-ROM tafiyarwa ba da shawarar saboda su iya katsewa a high gudu.

CD-ROMS da su iri

Tantancewar drive CD-R ne m na bayanai, wanda aka karanta kawai. Rubuta fayiloli zuwa gare shi, za ka iya kawai sau daya ba tare da hakkin ya gyara kuma jimlar. Da farko da damar wadannan fayafai kai kawai 650 MB ko 74 minutes daga audio. Yanzu akwai na'urorin da za a iya saukar da har zuwa 900 MB na bayanai. Abũbuwan amfãni da cewa karatu ne da goyan bayan duk daidaitaccen CD.

A cikin wannan adadin ƙwaƙwalwar ajiyar da Laser yana da wani CD-RW, kawai fayiloli a kan shi, za ka iya rikodin mahara sau (har zuwa 1000 sau). Don yin wannan, yi amfani da misali kwamfuta shirye-shirye. A downside shi ne cewa ba dukkan na'urorin suna shirye su yi aiki tare da wannan format. CD-RW ne dan kadan ya fi tsada fiye da CD-R.

CDs dauke da audio da bidiyo rikodin ba su mallaka wani mataki na kariya, su za a iya kofe da kuma sake bugawa. Amma kafofin watsa labarai tare da takamaiman data for kwafin kariya StarForce fasaha.

ROM fayafai rubuce a cikin ma'aikata kuma zai iya kawai wasa baya data. Shirya wannan abin hawa ne ba zai yiwu ba. Amma Tantancewar RAM-type na'urar za a iya sake rubutawa har zuwa 10,000 sau, kuma sunã bauta wa, har zuwa shekaru 30. Wadannan fayafai aka sanya don ƙarin harsashi, su karatu ba da goyan bayan al'ada tafiyarwa.

DVD-dako da su halaye

Digital m Disc ne mai dijital Multi-manufa ajiya matsakaici. Its tsari ne denser kuma ya ƙunshi mai yawa bayanai (har zuwa 15 GB). Irin wannan Tantancewar faifai kama gam tare biyu CD. Storage da karatu na a manyan girma bayanai mai yiwuwa ne ta hanyar yin amfani da ja Laser, da zango na wanda shi ne 650 nm da wani ruwan tabarau da iyakar lamba budewa. DVD-fayafai da daya ko biyu da rikodi gefe, kazalika da daya ko biyu aiki yadudduka a kowane gefe. Wadannan Manuniya tantance su iya aiki.

Kamar yadda da CD-fayafai, DVD ya kasu kashi da yawa Formats. DVD-R ko DVD + R ne m, wanda za a iya kawai sau daya rubuta bayanai. a kan wadannan fayafai, rikodin misali da aka ɓullo da Majagaba a 1997. "Debe" da "da" na'urorin bambanta hotuna na nuna Layer, kuma musamman alama.

Tantancewar Fayafai DVD RW (DVD + RW, DVD-RW) da damar rewritable kafofin watsa labarai. Kuma da "da" kafofin watsa labarai da ba ka damar yin canje-canje ga zama dole wuri a kan hankali. Universal tafiyarwa taimaka wajen magance matsalar da incompatibility na Formats (+ RW da -RW).

Menene-ray Player Blu da Disc?

Wannan irin Tantancewar drive ka damar adana da kuma rikodin dijital data a wani babban yawa. Domin haifuwa bayanai (ko da high definition video) ta amfani da blue Laser katako a 405 nm, wanda Narrows da biyu karkace hanya. Fayiloli da suke kusa da juna, suna tasirantuwa ga inji lalacewa, don haka ga drive zama na musamman kulawa. Kwanan kerarre motocin da musamman shafi cewa za a iya goge tsabta tare da tsumma busashe saba.

Akwai Blu-ray fayafai yarwa kuma reusable rikodi, da Multi-Layer (2 zuwa 4 yadudduka). Capacity na "laminate" m kai 128GB. Kamar haka yana da wani misali 12-cm diamita. Biyu-Layer misali Blu-ray Disc rike har zuwa 50 GB na bayanai. A ci gaba ne a na'urar kai damar 300-400 GB, wanda za a iya karanta zamani tafiyarwa. Domin video kyamarori ana amfani da karami diamita woje (80 mm) tare da ajiya iya aiki na 15 GB.

Domin kariya daga Blu-ray kwafin sanye take da dijital ruwa kiwon ROM-Mark da kuma fasahar M Managed Copy.

Nufa MiniDVD-kafofin watsa labarai

Tantancewar kafofin watsa labarai Mini DVD ne wani karami kwafin na al'ada Digital m Disc. Shi ne 8 cm a diamita da aka yi amfani da kyamarori da kuma camcorders. Single-gefe Disc iya rike har zuwa 1.4 GB na bayanai, da bi, biyu-hanya - 2.8 GB. A cikin format su ne MiniDVD-R (rubuta sau daya) da kuma MiniDVD-RW (mahara).

Standard 12-inch drive ba a yi nufin ga Mini DVD karatu. Lokacin amfani da irin wannan fayafai a kwamfyutar cinya za a yi amfani dogara sanda drive mota. Wani lokaci akwai matsaloli tare da karatu na da bayanai m. Yawancin lokaci a cikin irin wannan hali, da kwamfuta nuna da kalmomin "ba samu direba ga wani Tantancewar drive." Don magance matsalar, shawarci tare da wani gogaggen shirye-shiryen.