Taw qhia txog scanner
Lub scanner yog cov cuab yeej uas ntes cov duab. Raws li lub khoos phis tawm khoom siv ua ke nrog opto-mechanics thiab cov khoom siv hluav taws xob, lub scanner yog qhov khoom siv computer loj tshaj plaws thib peb tom qab nas thiab cov keyboard. Nws tuaj yeem hloov cov duab rau hauv lub khoos phis tawm uas tuaj yeem tsim tawm, kho thiab ua tiav. Cov hom ntawv digital rau cia thiab tso zis yog qhov muaj zog heev ntaus ntaus ntawv.