Software Utilities
Utility software is a type of computer software that provides an addition to the capabilities provided by the operating system.It is specifically designed to help and manage the computer hardware, operating system or application software. It performs a single task or a small range of tasks; as opposite to application software which are likely to be software suites. Utility software has long been integrated into most major operating systems.
Virus protection:
A computer virus is a small software program that spreads from one computer to another computer and that interferes with computer operation. A computer virus may corrupt or delete data on a computer, use an e-mail program to spread the virus to other computers, or even delete everything on the hard disk. Some Viruses are deliberately designed to damage files or otherwise interfere with computer’s operation while others don’t do anything but try to spread themselves around. Even the ones that just spread themselves are harmful, since they damage files and may cause other problems in the process of spreading.
Removing a computer virus can be a difficult task without the help of antivirus software program. By the help of antivirus software and by updating the computer, you can permanently remove the viruses from your computer. Antivirus software scan files to identify and eliminate computer viruses and other malicious software (malware). The software will need to be updated because the new version would have more features to detect new viruses. If the software is not updated, it will detect the old viruses only and it will not detect the new viruses.
Firewalls:
A firewall is a system that protects a computer or a computer network against unwanted interference coming from the LAN or WAN. A firewall is a system that filters data packets that are exchanged over the network. The firewall system is a software system, often supported by dedicated network hardware, forming an intermediary between the local network or the local computer and one or more external networks.
A firewall examines all traffic routed between the two networks to see if it meets certain criteria. If it does, it is routed between the networks, otherwise it is stopped. A firewall filters both inbound and outbound traffic. It can also manage public access to private network resources such as host applications. It can be used to log all attempts to enter the private network and trigger alarms when hostile or unauthorized entry is attempted. Firewalls can filter packets based on their source and destination addresses and port numbers. This is known as address filtering. Firewalls can also filter specific types of network traffic. This is also known as protocol filtering because the decision to forward or reject traffic is dependent upon the protocol used, for example HTTP, ftp or telnet. Firewalls can also filter traffic by packet attribute or state.
Virus protection:
A computer virus is a small software program that spreads from one computer to another computer and that interferes with computer operation. A computer virus may corrupt or delete data on a computer, use an e-mail program to spread the virus to other computers, or even delete everything on the hard disk. Some Viruses are deliberately designed to damage files or otherwise interfere with computer’s operation while others don’t do anything but try to spread themselves around. Even the ones that just spread themselves are harmful, since they damage files and may cause other problems in the process of spreading.
Removing a computer virus can be a difficult task without the help of antivirus software program. By the help of antivirus software and by updating the computer, you can permanently remove the viruses from your computer. Antivirus software scan files to identify and eliminate computer viruses and other malicious software (malware). The software will need to be updated because the new version would have more features to detect new viruses. If the software is not updated, it will detect the old viruses only and it will not detect the new viruses.
Firewalls:
A firewall is a system that protects a computer or a computer network against unwanted interference coming from the LAN or WAN. A firewall is a system that filters data packets that are exchanged over the network. The firewall system is a software system, often supported by dedicated network hardware, forming an intermediary between the local network or the local computer and one or more external networks.
A firewall examines all traffic routed between the two networks to see if it meets certain criteria. If it does, it is routed between the networks, otherwise it is stopped. A firewall filters both inbound and outbound traffic. It can also manage public access to private network resources such as host applications. It can be used to log all attempts to enter the private network and trigger alarms when hostile or unauthorized entry is attempted. Firewalls can filter packets based on their source and destination addresses and port numbers. This is known as address filtering. Firewalls can also filter specific types of network traffic. This is also known as protocol filtering because the decision to forward or reject traffic is dependent upon the protocol used, for example HTTP, ftp or telnet. Firewalls can also filter traffic by packet attribute or state.
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