Issues & Challenges facing Information System

1.Security
2.Back UP & Recovery
3.Fault Tolerance
4.Maintenance
5.Version & Upgrade
6.Legal
7.Ethical

Technologies Supporting IS

1.Computers
2.Harware
3.Software
4.components  of Computer
5.Server
6.NIC
7.Packet Switching
8.TCP/IP
9.Protocol
10.OSI Layer
11.Analog Signal
12.Digital signal
13.Types of Network
14.Network Topologies
15.Physical Transmission Media
16.Wireless Transmission Media