Tus nyeem ntawv Barcode lossis Barcode scanner yog khoom siv hluav taws xob nkag uas tuaj yeem luam theej thiab txiav txim siab barcodes.
Puas yog tus nyeem ntawv barcode lossis tso zis?
Zoo ib yam li lwm cov khoom siv nkag, tus nyeem ntawv barcode yog coj los (inputting) cov ntaub ntawv los ntawm lub ntiaj teb sab nraud mus rau hauv lub computer lossis lwm yam khoom siv hluav taws xob. Yog tias tus nyeem ntawv barcode tseem muaj lub vijtsam uas qhia (tso tawm) cov txiaj ntsig lossis luam tawm cov txiaj ntsig, nws yuav raug suav hais tias yog nkag / tawm khoom
Puas yog nyeem ntawv tawm tswv yim lossis tso tawm?
Nws yog a cov khoom siv nkag thiab tseem yog cov khoom siv tawm Feem ntau cov khoos phis tawj thaum ntxov, xws li ENIAC, thiab IBM NORC, muab rau punched card input / output. Daim npav nyeem ntawv thiab xuas nrig ntaus, txuas nrog khoos phis tawj lossis hauv daim npav off-line mus rau / los ntawm cov kab xev sib nqus, tau muaj nyob thoob plaws hauv nruab nrab-1970s.
Dab tsi yog tus nyeem ntawv barcode hauv computer?
Ib tus nyeem ntawv barcode (los yog barcode scanner) yog ib lub tshuab luam ntawv kho qhov muag uas tuaj yeem nyeem cov ntawv luam tawm, txiav txim siab cov ntaub ntawv muaj nyob hauv barcode thiab xa cov ntaub ntawv mus rau lub computer Zoo li lub txaj txaj scanner, nws muaj lub teeb ci, lub lens thiab lub teeb sensor txhais rau optical impulses rau hauv hluav taws xob signals.
tus nyeem ntawv barcode siv qhov twg?
Barcodes yog siv rau cov khoom lag luam kom paub sai sai. Ntawm lawv cov kev siv ntau, barcodes feem ntau yog siv hauv cov khw muag khoom ua ib feem ntawm cov txheej txheem yuav khoom, hauv warehouses los taug qab thiab tswj cov khoom muag thiab hauv cov ntawv xa nyiaj los pab kev suav nyiaj.