technology

A) How do information systems provide a competitive advantage . 2

Question 2 . 3

a) What are the five basic components of an operating system as described in the textbook and the basic services provided by each component? . 3

(b) What is the difference between primary and secondary storage? . 4

d) What is the difference between a primary key and a foreign key in a relational database? . 5

e) What does it mean when computers communicate logically and physically with each other? . 5

Question 3 . 5

What is XML and how can it impact supply chain management (SCM)? . 5

Question 4 . 6

A) Define and contrast data, information and knowledge . 6

b) Identify three basic characteristics of RAM and ROM … 6

c) What is the significance of an entity relationship diagram (ERD) in database architecture? . 6

(d) How does object-oriented (OO) programming language differ from other programming languages? Cite an example of an OO language . 7

(e) How does a local area network (LANs) differ from a virtual private network (VPN) and a wide area network (WAN)? . 7

References . 7