UNIT 1-  WHAT IS A COMPUTER? ------------------------------------------------------------- 1

UNIT 2-  COMPUTER'S CHARACTERISTICS----------------------------------------------- 21

UNIT 3-  HARDWARE AND SOFTWARE---------------------------------------------------- 41

UNIT 4-  COMPUTERS MAKE THE WORLD SMALLER AND SMARTER--------- 59

UNIT 5-  DATA MINING -------------------------------------------------------------------------- 71

UNIT 6-  LINUX -------------------------------------------------------------------------------------- 81

UNIT 7-  USER INTERFACES -------------------------------------------------------------------- 95

UNIT 8-  APPLICATION SERVICE PROVIDERS------------------------------------------- 107

UNIT 9-  HOW TCP/IP LINKS DISSIMILAR MACHINES------------------------------- 127

UNIT 10-  EMAIL PROTOCOLS---------------------------------------------------------------- 139

UNIT 11-  XML TAKES ON HTML------------------------------------------------------------ 151

UNIT 12-  BROADBAND COMMUNICATIONS ------------------------------------------ 161

UNIT 13-  SAFE DATA TRANSFER---------------------------------------------------------- 171

UNIT 14-  OBJECT-ORIENTED PROGRAMMING ---------------------------------------- 187

UNIT 15-  BECOMING CERTIFIED ----------------------------------------------------------- 201

UNIT 16-  FUTURES------------------------------------------------------------------------------- 217

APPENDIX I- TESTS ----------------------------------------------------------------------------- 239