This question might take you very close to getting this job because an interviewer here wants to know how worthy you could be for the company & do you have the computer operator skills and efficiency to work long hours by holding and delivering your best. You have to answer this question by nodding your head in a positive way means you should describe your previous work experience and you can say; in my last job I was senior in my department and get my work by directing and leading my subordinate therefore I have all the knowledge about this profile & I am proficient in particular software/software and can fulfill all the necessary computer operator requirements.