TY  - BOOK
AU  - Downton, A.C.
TI  - Computers and Microprocessors: components and systems
SN  - 0412403005
U1  - 004 
PY  - 1984///
CY  - London
PB  - Chapman & Hall
KW  - Electronic digital computers
KW  - Computer Systems
N1  - Computers and Microprcessors
ER  -