Sorry my computer seems have some problem that can't type in Chinese right now. So, ok, first at all, you need to learn Illustrator and PhotoShop (or other drawing software, something like image ready, freehand...etc.), which are very basic when drawing flat, and Computer Grading/Pattern-making, Gerber PDS/PDM which are also necessary when you get into advanced courses. By the way, the more computer skill /software you learn (like, Outlook, PowerPoint, Excel, Word, Windows 2000, 98, NT, Mac OS), the more job opportunities you have.
But, honestly, almost all of my classmates still love to use hand drawing to do fashion sketching/ flats, and I was the only one in the class using computer to do my portfolio.
-_-!! ……’Coz I’m not good at hand drawing.