One of the industrial robots designed by a leading producer of servomechanisms has four major components. Components$$ reliabilities are $\mathrm{.}98,\mathrm{.}95,\mathrm{.}94,$ and $\mathrm{.}90.$ All of the components must function in order for the robot to operate effectively.

What is the reliability of the robot? $($Please keep $3$ digits after the decimal point.$)$