Flash Storage vs Hard Drive
Hard drive thiab Flash drive yog ob lub tshuab khaws cia siv hauv cov khoos phis tawj niaj hnub. Hard drives, cov cuab yeej qub, tseem yog qhov nyiam ntawm cov neeg siv computer thaum flash drives yog qhov tseem ceeb raws li cov ntaub ntawv portable. Solid State drives kuj tseem yog flash drives, uas yog siv los ua qhov tseem ceeb thib ob cia hauv computers uas yuav tsum tau tshwj xeeb.
Hard Disk thiab Hard Drive
Ib lub hard disk drive (HDD) yog cov ntaub ntawv thib ob uas siv los khaws thiab khaws cov ntaub ntawv digital hauv computer. Taw qhia los ntawm IBM hauv xyoo 1956, hard disk drive tau dhau los ua qhov tseem ceeb thib ob cia khoom siv rau cov khoos phis tawj dav dav thaum xyoo 1960 thiab tseem yog daim ntawv tseem ceeb ntawm kev khaws cia. Cov thev naus laus zis tau txhim kho zoo txij li nws tau qhia.
Lub hard drive yog qhov tseem ceeb vim lawv lub peev xwm thiab kev ua haujlwm. Lub peev xwm ntawm HDD's sib txawv ntawm ib lub tsav mus rau lwm qhov, tab sis tau nce zuj zus mus ntev. Thaum ntxov hard disk drives muaj peev xwm tsawg heev, tab sis niaj hnub tus kheej lub computer muaj hard disk drives uas muaj peev xwm nyob rau hauv terabytes. Cov khoos phis tawj siv rau cov haujlwm tshwj xeeb xws li cov chaw zov me nyuam muaj peev xwm ntau dua hard drives.
Hard disk tsav yog ib qho khoom siv hluav taws xob; Yog li ntawd, muaj cov khoom txav hauv lub disk drive. Lub hard disk nws tus kheej yog ib qho tseem ceeb ntawm cov hard disk drives.
Ib lub hard disk drive muaj cov hauv qab no.
1. Logic Board - tus tswj Circuit Court board ntawm HDD, nws sib txuas lus nrog cov processor thiab tswj cov khoom cuam tshuam ntawm HDD tsav.
2. Actuator, Lub suab coil, thiab lub cev muaj zog - tswj thiab tsav lub caj npab tuav cov sensors uas siv los sau thiab nyeem cov ntaub ntawv.
3. Actuator Arms - ntev thiab daim duab peb sab zoo li tus hlau qhov chaw nrog lub hauv paus tau txuas nrog lub actuator, nws yog cov qauv tseem ceeb txhawb kev nyeem ntawv-sau taub hau.
4. Sliders - tsau rau lub ntsis ntawm lub caj npab actuator; nqa cov nyeem sau taub hau hla cov disks.
5. Nyeem / Sau Lub Taub Hau - sau thiab nyeem cov ntaub ntawv los ntawm cov hlau nplaum disks.
6. Spindle thiab Spindle Tsav - lub hauv paus sib dhos ntawm cov disks thiab lub cev muaj zog tsav lub disks
7. Hard Disks - tham hauv qab no
Qhov kev ua tau zoo ntawm lub hard drive yog tus yam ntxwv los ntawm Lub Sijhawm Nkag Nkag, Kev Sib Hloov Ncua, thiab Hloov Ceev. Lub sijhawm nkag mus yog lub sijhawm siv los pib lub actuator los ntawm tus maub los kom txav tus actuator caj npab nrog cov nyeem / sau taub hau rau hauv txoj hauj lwm hla txoj kev zoo. Rotational ncua yog lub sij hawm nyeem / sau taub hau yuav tsum tau tos ua ntej lub hom phiaj sector / pawg rotates rau hauv txoj hauj lwm. Hloov ceev yog cov ntaub ntawv tsis thiab hloov pauv tus nqi ntawm lub hard drive.
Hard drives txuas nrog lub rooj tsav xwm loj uas siv ntau qhov sib txawv. Enhanced Integrated Drive Electronics (EIDE), Me Me Computer System Interface (SCSI), Serial Attached SCSI (SAS), IEEE 1394 Firewire, thiab Fiber Channel yog lub ntsiab interfaces siv nyob rau hauv niaj hnub computer systems. Feem ntau ntawm PC's siv Enhanced Integrated Drive Electronics (EIDE) uas suav nrog nrov Serial ATA (SATA) thiab Parallel ATA (PATA) interfaces.
Vim tias Hard Disc Drives yog cov cuab yeej siv nrog cov khoom txav hauv lawv, kev siv ntev thiab lub sijhawm ua rau hnav thiab tsim kua muag, ua rau lub cuab yeej siv tsis tau.
Flash Drive
Flash drive yog lub khoos phis tawj khaws cia tsim siv lub cim xeeb flash. Flash nco yog lub cim xeeb tsis muaj zog uas tsim los ntawm EEPROM. Flash drives yog cov khoom siv hauv lub xeev thiab yog li nqa ntau qhov zoo dua li ib txwm cia tsav hom.
Muaj ntau yam khoom siv nco ua siv lub cim xeeb flash. Txawm li cas los xij, USB flash drives thiab Solid State Drives yog cov khoom siv piv rau kev ua haujlwm ntawm lub hard drive. Ob lub USB flash drives thiab SSD yog tsim los ntawm semiconductor technology.
USB flash drive yog ib qho flash nco nti uas tuaj yeem txuas nrog lub computer los ntawm USB txuas. Lub flash drives tau tsim nyob rau hauv nruab nrab xyoo 1990's thiab tuaj rau cov neeg siv khoom lag luam thaum kawg ntawm kaum xyoo. Cov cuab yeej siv tau zoo dua lwm txoj hauv kev tshaj xov xwm xws li floppy disks, compact dicks (CD's), thiab DVD's; yog li ntawd, tau nrov heev.
Ib qho yooj yim flash drive yog lub teeb heev (kwv yees li 25 grams), me me, thiab muaj peev xwm siab heev. Qhov no ua rau lub flash drive yog qhov zoo tshaj plaws portable cov ntaub ntawv khaws cia.
Lwm hom yog SSD's lossis Cov Khoom Muag Khoom Muag. Lawv muaj ib lub txhab nyiaj ntawm flash chips thiab muaj peev xwm heev. Lawv siv los hloov lub hard drive hauv cov khoos phis tawj uas yuav tsum tau ceev thiab qis dua. Cov tsav no yog lub teeb thiab nrawm heev.
Qhov downside ntawm SSD's yog tus nqi. Piv rau HDD zoo tib yam, SSD's tej zaum yuav yog ob peb zaug tus nqi rau ib gigabyte.
Flash Storage vs Hard Drive
• Hard drives yog cov khoom siv hluav taws xob, thiab cov khoom txav tau koom nrog hauv kev ua haujlwm.
• Flash drives yog cov khoom siv hauv lub xeev, thiab lawv tsim los ntawm cov khoom siv semiconductor.
• Hard drives tsis muaj zog npaum, suab nrov, thiab qeeb thaum lub cim xeeb flash muaj zog, tsis muaj suab nrov, thiab nrawm.
• Hard drives hnyav vim lawv cov hlau npog thiab cov khoom siv thaum lub cim xeeb flash yog lub teeb heev.
• Hard drives loj dua thiab loj, tab sis flash drives kuj me dua. (USB flash drives me me heev; SSD's kuj me me, tab sis nyob ntawm cov chaw tsim khoom xav tau, qhov loj yuav txawv; piv txwv li rau SSD's yuav tsum haum rau hauv lub computer chassis lub cuab yeej yuav tsum tau muab ntim rau hauv npog uas ua tau ntau dhau rau cov khoom siv)
• Hard drives kuj pheej yig dua piv rau Solid State Drive ntawm ib gigabyte. USB flash drives pheej yig.
