Operating system Windows, free navigation in the file structure, ability to optimize and configure systems. Installing new user programs. System cleaning and maintenance with anti-virus programs. Good knowledge of office programs (MS Word; MS Excel, MS Power point, MS Outlook), perfect use of archivers (RAR, ZIP), other programs: Photoshop, MS Visio, Qbasic, Fortran, Paint, AutoCAD (AutoLISP). Possession of navigation programs Mozila firefox, Opera, Chrome.