COMPUTER SECURITY

1.HARDWARE SECURITY
-Hardware security refers to security measures used to protect the hardware specifically the computer and its related documents
-The examples of security measures used to protect the hardware include PC-locks,keyboard-locks,smart cards and biometric devices.

2.SOFTWARE SECURITY AND DATA SECURITY
-Software and data security refers to the security measures used to protect the software and the loss of data files.
-Examples of security measures used to protect the software are activation code and serial number.

3.NETWORK SECURITY
-The transfer of data through network has become a common practice and the need to implement network security has become significant.
-Network security refers to security measures used to protect the network system.One example of network security measures is firewall.With firewall,network resources can be protected from the outsiders.