UNIX names can be many letters. You can also include numbers and the period, as well as some other characters. You cannot include spaces in a file name. You are now looking at a file in Professor Emad's acount. It lists your homework assignments.
Some files are longer than one screen page.
You would see a copy of this handout, but only the last part would be visible on the screen. Play with the UP arrow key and the Down arrow key to see how they work. Also try doing big jumps with the space bar and with the ' ' keys. When you are finished, type 'q' to quit. Use cat to view the homework and the anouncements.