Txhua yam khoom yuav tsum tau ntim, khoom noj khoom haus kev lag luam, tshwj xeeb tshaj yog, vim hais tias ntawm cov khoom rau cov khoom yuav tsum tau lossi txhim kho, ntxiv rau, raws li kev ua liaj ua teb thiab sideline khoom, noob, chiv, tshuaj tua kab thiab lwm yam industries ntawmntim tshuabry thov kom muaj nuj nqis tau nce.
Qhov zoo ntawm tsis siv neeg microcomputer ua ke hais tias: qhov kev ua yuam kev nruab nrab tuaj yeem tswj tau li ntawm 1 g rau txhua lub hnab, piv nrog rau tag nrho cov khoom hnyav hnyav ntawm 2 g ib lub hnab, tuaj yeem txuag tau ntau cov ntaub ntawv raw.