TY  - BOOK
AU  - Garry,B.Sheely
TI  - Essential computer concepts
T2  - Shelly cashman series
SN  - 0-87709-097-1
AV  - COM QA76.5.E87 
PY  - 1993///
CY  - Danvers, Massachusetts
PB  - : Boyd & Fraser
KW  - Electronic digital computers
N1  - Includes bibliographical references and index
ER  -