\input zb-basic
\input zb-ioport
\iteman{io-port 05087997}
\itemau{IEEE Computer Society, Unknown Author}
\itemti{Book Reviews.}
\itemso{Computer 24, No.03, 126-127 (1991).}
\itemcc{}
\itemut{}
\itemli{doi:10.1109/MC.1991.10020}
\end