Answer:
   
   The Written Law consists of the books of the Hebrew Bible, the Tanakh.
   It should be noted that the term "Bible" is more commonly used by
   non-Jews, as are the terms "Old Testament" and "New Testament". The
   appropriate term for Jews to use for the Hebrew Bible is "Tanakh".
   Tanakh is an acronym for Torah, Nevi'im, and Ketuvim.
   
   The Torah is also known as the Chumash, Pentateuch, or Five Books of
   Moses. The word 'Torah' has the following meanings:
    1. A scroll made from kosher animal parchment, with the entire text
       of the Five Books of Moses written in it by a sofer [ritual
       scribe]. This is the most limited definition.
    2. More often, this term means the text of the Five Books of Moses,
       written in any format, whether Torah scroll, paper back book,
       CD-ROM, sky-writing or any other media.
       Any printed version of the Torah (with or without commentary) can
       be called a Chumash or Pentateuch. However, one never refers to a
       Torah Scroll as a Chumash!
    3. The term 'Torah' can mean the entire corpus of Jewish law! This
       includes the Written and the Oral Law, which includes the Mishna,
       the Midrash, the Talmud, and even later day legal commentaries.
       This definition of Torah is probably the most common among
       Orthodox Jews. Usually you can figure out which definition is
       being used by the context.