TY  - BOOK
AU  - Hopper,Grace Murray
AU  - Mandell,Steven L.
TI  - Understanding computers
SN  - 0314303820
U1  - 621.C16 
PY  - 1987///
CY  - New York
PB  - West
KW  - Electronic digital computers
KW  - Microcomputers
ER  -