IT refers to people who are good at IT and computer scientists. Hackers are proficient in various programming languages and operating systems that grow with the development of computers and networks. The word "Hacker" is by the Hacker English transliteration of the English words themselves and no obvious good or bad, is according to the context in English application occasions of judgment, the idea is similar to Chinese dialogue often mentioned employs a person, the gunners, experts like words. In information security, "hacker" means the person who studies the computer security system. Using public communication networks, such as the Internet and telephone systems, to load the other's systems without permission are called black hat hackers. A white hat hacker (English: white hat), who debuts and analyzes computer security systems. The term "hacker" was first used to refer to people who study the use of telephone systems For a long time, there has been an expert programmer and community culture guru for web sharing dating back to the first sharing of minicomputers and the earliest ARPAnet pilot period in the 1960s. The people involved in this culture have created the term "hacker." Hackers set up the internet. Unix operating system hackers look like this. Hackers set up Usenet. Hackers make it work. If you are part of this culture, if you make some contribution to this, others in your circle know who you are and call you a hacker, then you are a hacker. When you make your resume, you have to be yourself, not someone else. Show your skills in your resume and prove them with your own results. If you have poor writing skills, you'd better ask someone who has a strong writing ability to help you. You can make others listen and write in your own way and describe yourself in the right words. It doesn't have to be formal: your resume is your resume, so no matter what you write, just look at it. A resume is best to be honest about yourself, to be overly extravagant or to be too modest.