1) The speaker welcomed new students to the orientation for the computer science department, which is considered the most innovative department at the university. 2) He highlighted the success of previous students, noting that some received jobs immediately after graduation or awards for academic performance. 3) The speaker encouraged the new students to work hard and emulate the legacy of past students, stressing the importance of commitment, diligence, and devotion to academics. He also advised the new students to avoid laziness and develop a passion for their field in order to succeed.