UNIT? I E-Commerce: Introduction, Meaning and Concept; Needs and Advantages of E-commerce; Traditional Commerce; Types of E-Commerce, Basic Requirements of E-Commerce. UNIT? II Internet: Concept & Evaluation, Characteristics of Internet: Email, WWW. FTP, Telnet, Intranet & Extranet, Limitation of Internet, Hardware & Software Requirement of Internet, Searches Engines. UNIT? III Customer Relationship with Business via E-Commerce Electronic Payment Systems: E-Cash, E-Cheque, Credit Cards, Debit Cards, Smart Cards, E-Banking, Manufacturing Information Systems. UNIT? IV EDI Introduction, Networking Infrastructure of EDI, Functions & Components of EDI File Types of EDI. UNIT? V Security Issues of E-Commerce: Firewall, E-Locking, Encryption; Cyber Laws-Aims Salient Provisions; PKI (Public Key Infrastructure)