Cia lub ntsiab txhais
Ib qho lus hais dav dav rau hauv tshuab hluav taws xob, sib nqus, laser, tshuaj lom neeg thiab lwm yam khoom siv rau kev cia ib ntus lossis lub sijhawm ntev cia ntawm cov ntaub ntawv. Cov khoos phis tawj feem ntau suav nrog ROM, RAM, hard disk, CD-ROM, thiab cov twj txuas.