Computer Security

#Computer Security: The security given to the computer data, information, software and hardware is called computer security.

Computer security can be studied under two topics:

1.Hardware Security

2.Software Security

#Hardware Security: Protecting the computer hardware from physical damage, loss or theft is known as hardware security. The following security measures can be applied to protect computer hardware from physical loss or damage:

(i) Regular maintenance

(ii)  Free from dust

(iii) Fire protection (there should be fire extinguishers installed in the computer room)

(iv) Power protecting devices (Uninterruptible Power Supply (UPS), Volt Guard, Stabilizer, Constant Voltage Terminal (CVT), Spike Guard.

(v) Protection from theft (use alarms and Closed-Circuit Television (CCTV))

(vi) Air condition system (the temperature of the computer room should be normal i.e., in between 20 to 25 degrees Celsius) and so on.

#Software Security: The process of securing data and software from being lost, damaged or corrupted accidentally or intentionally is known as data and software security. The following security measures can be applied to protect computer software from being lost, damaged or corrupted:

(i) Use of password: A password is secret word that gives a user access to a particular file, program or system.

(ii) Virus free environment: A virus is parasitic computer program that can copy itself and infect a computer.

(iii) Backup data: An extra copy or duplicate copy of important data, information and program is called backup data.

(iv) Scandisk: Scandisk is a utility available in operating system which helps to check the disks for errors and removes them if possible.

(v) Defragmentation: The process of scattering the parts of the same file into different random locations is called defragmentation. And, the process of combining the parts of the same file from different random locations is called defragmentation.

(vi) Use of original software