Muaj qhov tsis zoo nyob hauv lub Windows operating system - koj tsis tuaj yeem tsim daim nplaub tshev uas muaj cov npe tshwj xeeb hauv nws. Piv txwv li, con tus sis, lpt. Muaj ntau lub tswv yim hais txog qhov no. Ib qho ntawm lawv yog tias cov npe no raug ceev tseg los ntawm kab ke.
Hauv Windows operating system, nws tsis tuaj yeem tsim daim nplaub tshev lossis cov ntaub ntawv npe hu ua COM, KHEEJ $, AUX, PRN, LPT. Muaj ib qho version uas qhov kev txwv no tau qhia los ntawm Bill Gates vim yog lub npe menyuam yaus uas nrog nws tau ntau xyoo. Thiab mob siab rau nws cov phooj ywg, nws tau qhia txog kev txwv rau kev tsim daim nplaub tshev nrog lub npe menyuam yaus. Txawm li cas los xij, cov kab ntawv no tsis muaj tseeb.. Nws yog tsis yooj yim sua los tsim cov folders nrog cov npe zoo li no, vim muaj cov lus piav qhia ntau dua. Thaum kaj ntug ntawm lub Windows ua haujlwm, Dos thawj cov khoom siv tau tso tawm; lawv tso cai rau koj los tsim cov ntawv qhia no. Tab sis nyob rau hauv cov khoos phis tawm tshiab ntawm OS no, cov kab ntawv no tsis tsim, vim tias Windows cov npe no tau nkag los ua cov npe ntawm cov kab ke system twb tau tsim thiab muaj lawm. Hauv OS Dos muaj ib qhov lus txib kom sau cov ntaub ntawv los ntawm lub console - nws ntsia zoo li qhov no theej con text.txt. Txhua yam nkag los ntawm cov keyboard poob rau hauv cov ntawv no. Yog tias nws tsim tau los tsim cov nplaub tshev npe hu ua com, tom qab ntawd nws tuaj yeem luam tag nrho cov npe mus rau ib daim ntawv. Yog li no, lub npe no raug txwv rau kev siv. Cov lus no yog qhov tseem ceeb heev, lub npe no tau tshwj tseg los ntawm cov kab ke rau I / O devices. It tsis yooj yim los tsim qhov nplaub tshev npe hu ua prn, txij li muaj ib daim ntawv txib ntawm text.txt> prn, uas tau ua (thiab tam sim no yog lub luag haujlwm rau qhov no) theej cov ntsiab lus ntawm cov ntawv no rau lub tshuab luam ntawv … Thiab lub npe no tseem yog cov kab lus tshwj tseg rau cov txheej txheem. Tsis tas li, koj tsis tuaj yeem tsim ib daim nplaub tshev rau hauv Windows nrog cov npe hauv qab no: PRN, NUL, CLOCK $, AUX, COM0, COM1,… COM9, LPT0, LPT1,… LPT9. Cov npe no tseem tseg rau qee lub luag haujlwm. Piv txwv li, lo lus Nul feem ntau yog txhais los ntawm lub system ua "Tsis muaj dab tsi", thiab Nul cov lus txib yog ib qho khoom siv khoob uas tsim los hloov cov teeb meem ntawm cov lus txib ntawm lub cev. Yog li ntawd, nws yuav tsis muaj peev xwm tsim cov ntawv tais ceev tseg nrog lub npe no.
