TY  - BOOK
AU  - Alex, K. M.
AU  - Charles, M. A.
TI  - Comprehensive computer hand book: for schools and colleges 
SN  - 9966716602
AV  - QA76.5 .A44 2006
PY  - 2006///
CY  - Johannesburg
PB  - Harrison & Wormans
N1  - Introduction to computers -- computer systems -- operating systems -- DOS and windows operating systems -- word processing -- spreadsheets -- databases -- desktop publisher -- internet and email -- data security and control
ER  -