Gịnị bụ ihe ngwa anya diski? CD-ROM mbanye, laser na ndị ọzọ na ngwa anya discs

Ná ndụ anyị anyị na-eguzosi a dịgasị iche iche nke data nhazi na nchekwa. Anya gara aga e bipụtara akwụkwọ edebe ihe ochie. Gịnị bụ oge a na media?

Ngwa anya mbanye: akụkọ ihe mere eme nke e kere eke

The akpa ngwaọrụ maka na ịchekwa audio E mepụtara ha Sony azụ na 1979. Ọ na-anọchi anya, dị ka ugbu a, na-plastic diski na a okirikiri onu center. Ná mmalite ya mee naanị maka Ndekọ ọdịyo faịlụ, na ozi na ya mee ihe a akpan akpan usoro nzuzo usu Code Mgbanwe ụda olu. Ọ dabeere n'eziokwu na ederede ma ọ bụ ụda na-aga site na analọg na-dijitalụ Ihe Ntụgharị na converted n'ime a set nke ibe n'ibe.

Mgbe e mesịrị, na 1982, Germany malitere uka mmepụta nke CD. Ha na-azụ maka na ịchekwa a dịgasị iche iche nke faịlụ. N'oge na-adịghị, ha na ndị na-shelves bụghị naanị music echekwa.

Olee otú ndokwa ndị CD? Ndọkwasi eji maka n'ichepụta 1,2-millimeter ọkpụrụkpụ polycarbonate efere nke 120 mm n'obosara, nke a na mbụ ntekwasa na a mkpa oyi akwa nke metal (gold, aluminum, ọlaọcha na na na. D.), Ma mgbe ahụ ghọọ. Na ozi na-etinyere na metal n'ụdị olulu (indentations) extruded tinyere a gburugburu ụzọ. Ịgụ files dere na ngwa anya disk, Ọ na-adị site na a laser doo na a wavelength nke 780 nm. Ọ na-egosipụta n'elu nke efere, ọ gbanwere adọ na ike na-ada na olulu. Ibinye na-akpọ gaps n'etiti olulu. Kwụpụ audio track emi odude ke helix bụ mkpokọta 1.6 microns.

Ụdị ngwa anya discs

E nwere ọtụtụ ụdị nke CD: Kọmpat Disc (CD), Digital vasatail Disc (DVD), Blu-ray Disc (BD). Ha niile nwere dị iche iche ike idekọ ọmụma. Ka ihe atụ, DVD-discs na-emepụta na ike si 4.3 ka 15,9 GB, na CD - na 900 MB.

Ọ na-akwanyere ya ùgwù site na ndekọ discs multiplicity: otu na otutu. N'ọnọdụ dị otú media dị iche iche ekara enyemaka Ọdịdị nke olulu. Overwrite ndekọ bụ na o kwere omume ekele na organic ihe onwunwe na n'okpuru ihe nke laser darkens na mgbanwe reflectivity. Na nkịtị parlance, nke a na-akpọ ọkụ.

Ọzọ ngwa anya media nwere ike ịdị iche n'ụdị. Ekara CD (Mee CD) ọtụtụ ndị na-eji na ntụrụndụ azụmahịa dị ka ẹkekpemede nke ọdịyo na video faịlụ. Ha na-ọ bụla udi (square, n'ụdị a ụgbọelu ma ọ bụ a obi). Jiri ha CD-ROM draịva na-atụ aro ha n'ihi na ha nwere ike-agbawa na elu gbapụrụ ọsọ.

CD-ROMs na ha ụdị

Optical drive CD-R bụ a ụgbọelu nke ozi, nke na-agụ-naanị. Dee faịlụ ya, ị nwere ike naanị otu ugboro enweghị nri dezie na gbakwunyere. Ná mmalite ike nke ndị a discs ruru naanị 650 MB ma ọ bụ 74 nkeji nke ọdịyo. Ugbu a dị ngwaọrụ ike ịba ruo 900 MB ọmụma. Uru nke eziokwu na-agụ na-akwado nile ọkọlọtọ CD.

Na otu ego nke na ebe nchekwa na laser nwere a CD-RW, naanị faịlụ na ya, ị nwere ike dee otutu ugboro (ruo 1000 ugboro). Iji mee nke a, jiri kọmputa ọkọlọtọ mmemme. The downside bụ na ọ bụghị ihe niile na ngwaọrụ ndị njikere ịrụ ọrụ na a format. CD-RW bụ ubé oké ọnụ karịa CD-R.

CD nwere ọdịyo na video E-adịghị ọ bụla ogo nke nchebe, ha nwere ike depụtaghachiri na aruputaghari. Ma media na kpọmkwem data maka oyiri nchedo StarForce technology.

ROM discs dere na ụlọ ọrụ ma na ike na-egwu azụ data. Dezie a ụgbọala bụ agaghị ekwe omume. Ma ngwa anya RAM-ụdị ngwaọrụ nwere ike rewritten ruo 10,000 ugboro, na ha na-ejere ruo afọ 30. Ndị a discs na-mere maka ndị ọzọ cartridges, ha na-agụ na-anaghị akwado na ot draịva.

DVD-ebu na ha ji mara

Digital vasatail Disc bụ a digital multi-nzube nchekwa ọkara. Ya Ọdịdị bụ denser na e dere ọtụtụ ihe ọmụma (ruo 15 GB). Dị otú ahụ ngwa anya disk yiri glued abụọ CD. Nchekwa na-agụ nke a nnukwu olu ọmụma bụ omume site na iji red laser, na wavelength nke bụ 650 nm na a oghere na a kacha space aperture. DVD-discs nwere otu ma ọ bụ abụọ Ndekọ n'akụkụ, nakwa dị ka otu ma ọ bụ abụọ na-arụ ọrụ n'ígwé nke ọ bụla. Ndị a na-egosi chọpụta ha ikike.

Dị ka CD-discs, DVD na-ekewa n'ime ọtụtụ formats. DVD-R ma ọ bụ DVD + R bụ a ụgbọelu, nke nwere ike naanị otu ugboro dere ọmụma. na ndị a na discs, Ndekọ ọkọlọtọ e mepụtara site Pioneer ke 1997. "Mwepu" na "plus" ngwaọrụ dị iche foto reflective oyi akwa na a pụrụ iche na-akanye.

Optical Discs DVD RW (DVD + RW, DVD-RW) nwere ike rewritable media. Na "plus" media-enye gị ohere ime mgbanwe ndị dị mkpa n'ebe gị uche. Universal draịva aka dozie nsogbu nke incompatibility nke formats (+ RW na -RW).

Gịnị bụ-ray Player Blu na Disc?

Nke a na ụdị ngwa anya mbanye-enye gị ohere iji chekwaa ma dekọọ digital data na a elu njupụta. N'ihi imepụtaghachi ọmụma (ọbụna elu definition video) iji acha anụnụ anụnụ laser doo na 405 nm, nke asụchikwa abụọ gburugburu track. Files na-nnọọ nso onye ọ bụla ọzọ, pụrụ itinye aka n'ibu mmebi, otú maka mbanye ka ndị pụrụ na-elekọta. Nso nso arụpụtara ugbo ala na a pụrụ iche mkpuchi na nwere ike ihichapụ ọcha na a akọrọ ákwà na mbụ.

E nwere Blu-ray discs disposable na reusable ndekọ, na multi-oyi akwa (2 4 n'ígwé). Ike nke "laminate" ụgbọelu esịmde 128GB. N'ihi ya, ọ nwere a ọkọlọtọ 12-cm n'obosara. Two-oyi akwa ọkọlọtọ Blu-ray Disc esetịpụ aka 50 GB nke ozi. Na mmepe bụ a ngwaọrụ esịmde ike nke 300-400 GB, nke nwere ike ịgụ oge a draịva. N'ihi na video ese foto na-eji nta dayameta diski (80 mm) na a nchekwa ikike nke 15 GB.

Maka nchebe site na Blu-ray oyiri onwem na digital mmiri n'egosi ROM-Mark na technology Amanyere bụ iwu Managed Copy.

Nzube MiniDVD-media

Optical media Mini DVD bụ a nta oyiri nke ot Digital vasatail Disc. Ọ bụ 8 cm n'obosara, na-eji na ese foto na camcorders. Single-kwadoro diski ike chere na 1.4 GB nke data, karị, abụọ na-ụzọ - 2.8 GB. Na format ha MiniDVD-R (dee ugboro) na MiniDVD-RW (multiple).

Standard 12-anụ ọhịa mbanye na-abụghị maka ndị Mini DVD agụ. Mgbe na-eji ndị dị otú ahụ discs na laptọọpụ ka etinyere spindle drive moto. Mgbe ụfọdụ, e nwere nsogbu na-agụ ihe ọmụma ụgbọelu. Na-emekarị dị otú ahụ ikpe, na kọmputa na-egosiputa okwu "ahụghị onye na-akwọ ihe ngwa anya mbanye." Iji dozie nsogbu, ịkpọ ahụmahụ programmer.