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Nguwuphi umahluko phakathi kwamazibuko othotho kunye namazibuko anxuseneyo?

2024-09-27 09:02:48

Namhlanje siza kuthetha ngomahluko phakathi kwe-serial port kunye ne-parallel port. Zombini izibuko ze-serial kunye ne-parallel port zizinto eziqhelekileyo zekhompyuter, ezisetyenziselwa ukudibanisa izixhobo kunye neekhompyuter, kodwa kukho umahluko omkhulu phakathi kwazo.

Isiqulatho

1. Yintoni izibuko elinxuseneyo?
2. Yintoni izibuko le-serial?
3. Yintoni umahluko phakathi kwezi zimbini?
4. Isiphelo

1. Yintoni izibuko elinxuseneyo?

Izibuko elinxuseneyo sisishunqulelo sojongano oluhambelanayo. Izibuko ezinxuseneyo zeekhompyuter zisebenzisa i-25-pin D-shaped connector. Okubizwa ngokuba yi "parallel" kuthetha ukuba amasuntswana angama-8 edatha ahanjiswa ngaxeshanye ngemigca ehambelanayo, ukuze isantya sokuhanjiswa kwedatha siphuculwe kakhulu, kodwa ubude bomgca wothumelo oluhambelanayo bukhawulelwe. Ngenxa yokuba ubude bunyuka, ukuphazamiseka kuya kwanda, kwaye idatha iya kuba neempazamo. Okwangoku, ujongano oluhambelanayo lusetyenziswa ikakhulu njengezibuko lomshicileli, njl.

2. Yintoni izibuko le-serial?

I-serial port ikwabizwa ngokuba yi-serial communication interface, okanye i-COM port. Ngokwemigangatho yombane kunye neeprothokholi, izibuko ze-serial ziquka i-RS-232-C, i-RS-422, i-RS485, i-USB, njl.

3. Yintoni umahluko phakathi kwezi zimbini?

1. Amazibuko othotho kunye nokusetyenziswa kwamazibuko ahambelanayo iindlela ezahlukeneyo zokuhambisa idatha. I-serial port yi-bit-by-bit transmission interface ethumela idatha kwikhompyutha okanye esinye isixhobo bit by bit. Le ndlela inokuqinisekisa ukuthembeka kokudluliselwa kwedatha, kodwa isantya sokuhambisa sicotha. I-port ehambelanayo yi-interface yokuhanjiswa kwe-parallel enokuthumela i-bits ezininzi zedatha ngexesha elifanayo, ngoko isantya sothumelo sikhawuleza, kodwa sichaphazeleka lula ngokuphazamiseka.

2. Uthotho amazibuko kunye namazibuko parallel nazo ezahlukeneyo kwizixhobo kunye neemeko ezisetyenziswayo. Amazibuko othotho adla ngokusetyenziselwa ukudibanisa izixhobo ezinesantya esiphantsi, njengabashicileli, iimodem, njl. njl. Izibuko ezinxuseneyo zidla ngokusetyenziselwa ukudibanisa izixhobo ezinesantya esiphezulu, ezinje nge-hard drives, i-optical drives, njl., ezifuna isantya esiphezulu sothumelo kunye nezixa ezikhulu zothumelo lwedatha, kodwa zineemfuno ezisezantsi zokuthembeka kokudluliselwa kwedatha.

3. I ujongano lomzimba yamazibuko e-serial kunye namazibuko ahambelanayo nawo ahlukile. Amazibuko othotho aqhele ukusebenzisa i-DB9 okanye i-DB25 yojongano, ngelixa izibuko ezinxuseneyo zisebenzisa ujongano lweDB25 okanye izikhonkwane zezibuko ezinxuseneyo. Ukongeza, izibuko ze-serial zinokusebenzisa ujongano lwe-USB kuthumelo lwedatha.

4. Isiphelo

Kukho umahluko omkhulu phakathi kwamazibuko othotho kunye namazibuko ahambelanayo ngokweendlela zothumelo lwedatha, iimeko zokusetyenziswa, kunye nojongano lomzimba. Ngoko ke, xa ukhetha i-interface, kufuneka ukhethe i-interface efanelekileyo ngokusekelwe kwiimfuno ezithile zesicelo.

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