TY  - GEN
AU  - Jain,Satish
TI  - `O' level question and answer  system software, diagnostic & debugging tools: (according to DOEACC CHM-04 syllabus for `O' level examination) 
T2  - Computer hardware maintenance CHM-04
SN  - 8183332617
U1  - 005.42 
PY  - 2008///
CY  - New  Delhi
PB  - BPB Publications
ER  -