Nyob rau hauv lub ntiaj teb no evolving sai sai, luam Circuit Court boards (PCBs) ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm cov khoom siv hluav taws xob. Los ntawm cov xov tooj smartphones mus rau cov khoom siv kho mob, PCBs yog cov caj qaum ntawm cov khoom siv hluav taws xob niaj hnub no, muab lub platform rau cov khoom sib txuas thiab sib koom ua ke hauv cov txheej txheem nyuaj. Hauv blog no, peb yuav tshawb txog qhov tseem ceeb ntawm PCBs thiab lawv qhov cuam tshuam rau ntau yam kev lag luam.