SCSI yog ib hom kev sib txuas ib zaug rau kev cia thiab lwm yam khoom siv hauv PC. Lub sij hawm hais txog cov cables thiab cov chaw nres nkoj siv los txuas qee hom hard drives, optical drives, scanners, thiab lwm yam khoom siv peripheral rau lub computer.
Tus qauv SCSI tsis muaj nyob rau hauv cov khoom siv kho vajtse, tab sis koj tseem yuav pom nws siv hauv qee qhov chaw lag luam thiab chaw lag luam server. Tsis ntev los no versions suav nrog USB Attached SCSI (UAS) thiab Serial Attached SCSI (SAS).
Cov tuam txhab siv computer feem ntau tau tso tseg tsis siv onboard SCSI kiag li thiab siv ntau cov qauv nrov xws li USB thiab FireWire rau kev txuas cov khoom siv sab nraud rau cov khoos phis tawj. USB tau nrawm dua, nrog qhov siab tshaj plaws nkag mus txog 40 Gbps.
SCSI yog raws li qhov qub interface tsim los ntawm cov chaw tsim khoom floppy disk drive Shugart Associates thiab hu ua Shugart Associates System Interface (SASI), uas tom qab hloov mus rau Me Me Computer System Interface, luv luv li SCSI thiab hais tias "scuzzy."
SCSI Ua Haujlwm Li Cas?
SCSI interfaces siv sab hauv hauv cov khoos phis tawj los txuas cov khoom siv sib txawv ntawm cov khoom siv ncaj qha mus rau lub motherboard lossis daim npav khaws cia. Thaum siv sab hauv, cov khoom siv txuas nrog los ntawm ib txoj hlua khi.
Kev sib txuas sab nraud kuj tseem muaj thiab feem ntau txuas ntawm qhov chaw nres nkoj sab nraud ntawm daim npav tswj kev cia khoom siv cable.
Nrog rau tus maub los yog lub cim xeeb nti uas tuav SCSI BIOS, uas yog ib qho ntawm cov software sib xyaw uas tau siv los tswj cov khoom siv sib txuas.
Dab tsi yog SCSI Technologies txawv?
Muaj ntau yam SCSI thev naus laus zis uas txhawb nqa cov kab sib txawv, qhov nrawm, thiab ntau yam khoom siv uas tuaj yeem txuas rau ib lub cable. Qee zaum lawv raug xa mus los ntawm lawv lub tsheb npav bandwidth hauv MBps.
Debuting hauv 1986, thawj version ntawm SCSI txhawb yim pab kiag li lawm nrog qhov siab tshaj plaws hloov ceev ntawm 5 MBps thiab qhov siab tshaj plaws cable ntev ntawm rau meters. Cov qauv nrawm dua tuaj tom qab nrog kev txhawb nqa rau 16 cov khoom siv thiab 12-meter siab tshaj cable ntev.
Ntawm no yog qee qhov ntawm lwm qhov SCSI interfaces uas tau muaj:
- nrawm SCSI: 10 MBps; txuas yim pab kiag li lawm
- Fast Wide SCSI: 20 MBps; txuas 16 pab kiag li lawm
- Ultra Wide SCSI: 40 MBps; txuas 16 pab kiag li lawm
- Ultra2 Dav SCSI: 80 MBps; txuas 16 pab kiag li lawm
- Ultra3 SCSI: 160 MBps; txuas 16 pab kiag li lawm
- Ultra-320 SCSI: 320 MBps; txuas 16 pab kiag li lawm
- Ultra-640 SCSI: 640 MBps; txuas 16 pab kiag li lawm
