Fixing mechanism for fixing a portable device and related computer system

A computer system comprising:

• a portable device whereon at least one opening is formed;
• and
• a fixing mechanism for fixing the portable device, the fixing mechanism comprising:
• a casing whereon a track is disposed, the track being for guiding the portable device to slide, and at least one hole being formed on the casing;
• and
• a resilient component comprising:
• a wedging part fixed on the casing;
• at least one bending part, an end of the bending part passing through the hole on the casing and inserting into the opening on the portable device so as to fix the portable device inside the casing;
• and
• at least one torsional part, an end of the torsional part being connected to the wedging part, the other end of the torsional part being connected to the other end of the bending part, and the torsional part being for providing torsional force to the bending part so as to drive the end of the bending part to pass through the hole on the casing.