Cov kab lus txib yog ib qho kev qhia tshwj xeeb uas sib txuas lus ncaj qha ntawm tus neeg siv thiab lub koos pis tawj. Nws sawv cev ib puag ncig nyob rau hauv uas ntau cov kev pab cuam nrog lub textual interface yuav khiav. Qhov tshwm sim ntawm lawv kev ua haujlwm yuav tshwm tawm ntawm lub vijtsam.
Muaj cov laj thawj hauv qab no rau kev siv kab lus txib:
- tsawg lub cim xeeb noj tsawg dua piv rau siv cov ntawv qhia ua zaub mov;
- feem ntau sau cov lus txib rau ib daim ntawv thov ceev dua li siv nws cov graphical interface;
- hauv cov kab hais kom ua, ib daim ntawv xa tawm ib txwm tuaj yeem ua tiav muaj txheej txheem ntawm cov lus txib, uas nrawm dua li lawv qhov kev ua haujlwm tas mus li.
Cov kab hais kom siv nyob rau hauv:
- cov haujlwm ua haujlwm;
- khoos phis tawj ua si;
- lwm yam kev pabcuam.
Lub operating system yog feem ntau siv ib puag ncig rau cov kab hais kom ua. Nrog nws cov kev pab, ntau txoj haujlwm tau ua tiav, thiab hauv qee cov haujlwm ua haujlwm siv tus neeg tuaj yeem ua haujlwm nrog nws txawm tias ntau zaus dua li nrog cov graphical interface.
Thaum pib, kev siv cov kab hais kom ua hauv kev ua si tau tsav los ntawm qhov xav tau kev debugging. Tom qab ntawd, cov lus tshawb pom tau tshwm sim. Tus console tseem tau siv ntau GUI kev ua si. Ib qho piv txwv prime yog Quake, uas siv lub tilde (~) khawm kom ua tau rau tus neeg hais kom ua kab. Siv lub console, nws muaj peev xwm hloov pauv cov kev ua si nqis sai dua li siv cov graphical menu.
Cov kab hais kom ua kuj tseem siv tau rau lwm cov khoom software, piv txwv li, khoos phis tawj-tsim qauv, cov hloov kho lus, qee qhov browser, thiab lwm yam.
Qhov zoo ntawm kev siv kab lus txib yog raws li hauv qab no:
- tsawg tsawg ntawm nias hu rau txhua qhov lus txib;
- yuav luag nrawm nkag mus siv cov lus txib ntawm ntau cov ntaub ntawv ua tiav;
- lub peev xwm los kho qhov haujlwm ib qho twg uas siv cov ntawv sau plhaub lossis cov ntawv xa khoom;
- kev tswj hwm ntawm cov haujlwm uas tsis muaj lub graphical interface;
- cov chaw taws teeb sib txuas rau lub khoos phis tawm nrog cov nqi tsheb tsawg;
- muaj peev xwm loj ntawm cov ntawv sau ntawm nplooj ntawv piv rau lub graphical interface.
Qhov tsis zoo ntawm cov kab hais kom ua muaj xws li:
- tsis zoo rau cov neeg siv ua haujlwm nrog lub graphical interface;
- Nyuaj nkag mus ntev cov lus txib nyob rau hauv qhov tsis muaj qhov tsis siv neeg ua tiav;
- tsis muaj "analog" hom ntawm lub tswv yim.
