點解冇software部電腦唔可以運作呢??

So funny question.... I really can't to explain WHY... but you must be know that.... your question is "Computer System"... it should be wrong... if you mention "system"... that mean have the software.....

Computer is a HARDWARE..... it only a standalone HARDWARE... even have CPU, RAM, HD... etc.... all are HARDWARE.... it can't WORK... IF you are not switch on the power... the COMPUTER will not switch on....that mean you have to DO something and make it work...

Same question... HD is empty... even the "Computer" will base on CPU signal ask for DO something... before that.. when you switch on the computer... you have already see the motherboard "Firmware" to run the computer... (this is the computer data flow question...will not answer this here) ... that mean at the end the HARDWARE still need SOFTWARE to RUN.....

Hope this can help!!!