4.5 OTHER CRITERIA FOR CLASSIFICATION OF SOFTWARE

There are various methods to classify software into different categories. First method which is accepted by the computer researchers world wide which we have discussed in the section 4.2 of this unit.

However, on the basis of number of user’s, piracy policy and authority of use, software can also be classified into following categories:

1. Public Domain Software

Public domain software are widely used now days. Features of public domain software are:

  • · Has no copyright no one owns the right to control it and any ones can make copies of the software.
  • · Free to use or make copies by all.
  • · Can be copied, used in other programs, or changed by anyone.

2. Freeware

If small applications are developed without charging any cost it is known as freeware.

Features of freeware are:

  • · Has a copyright someone owns the right to determine who can make copies of the software.
  • · Free to use and make copies.
  • · Can only give away exact copies of the software.
  • · Can‘t be changed or used in another program without the copyright holder’s permission.

3. Shareware

The softwares of this category are given for some period on trial basis and later on users are charged for using it. 

Features of shareware software are:

  • · Has a copyright.
  • · Allowed to use the software before paying for it.
  • · Can be a demo which limits some major features like the Save command.
  • · Can set an amount of time you can use the software.

4. Commercial Software

These software are developed by professionals for organizations for business purpose.

Features of commercial software are:

  • · Has the most resistive copyright.
  • · Have to buy the software before you can use it.
  • · Can usually make one copy of the software as a backup copy.
  • · A backup copy is used in case something goes wrong with the original software.
  • · Can not give away or sell the backup copy.
  • · Can not copy look at the program’s code, change, or use the software in another program without the copyright holder’s permission.

It is necessary a computer user to know how a software is installed on computers (PCs). Let us see how software is installed on PCs. Software installation into the computer Software can be installed into the computer by the following way:
  • 1. Built into the computer’s circuits, the ROM chips.
  • 2. Loaded into the computer from a secondary storage device, like a floppy disk or hard disk drive.
  • 3. Typed in from the keyboard.
  • 4. From the Bluetooth Technology, Infrared Ray Technology and WiFi Network Technology.
  • 5. From the backup of LAN servers.

After copying finally installation setup is executed.


Comments

Post a Comment

Popular posts from this blog

3.8 SECURE NETWORK DEVICES

 In this unit, we have already learnt that the firewall is only one entry point to your network. Modems, if you allow them to answer incoming calls, can provide an easy means for an attacker to sneak around, your front door (or, firewall). Just as castlesweren't built with moats only in the front, your network needs to be protected at all of its entry points. Secure Modems, DialBack Systems If modem access is to be provided, this should be guarded carefully. The terminal server, or network device that provides dialup access to your network needs to be actively administered, and its logs need to be examined for strange behavior. Its passwords need to be strong not ones that can be guessed. Accounts that aren't actively used should be disabled. In short, it's the easiest way to get into your network from remote: guard it carefully. There are some remote access systems which have the feature of a twopart procedure to establish a connection. The first part is the remote user di...
Read more

3.5 SECURITY ISSUES FOR SMALL AND MEDIUM SIZED BUSINESSES

 Small and medium sized businesses use the Internet and networked applications to reach new customers and serve their existing ones more effectively. At the same time, new security threats and legislation puts increased pressure on business networks to be reliable and secure. Business Challenges According to recent studies, security is the biggest challenge facing small and mediumsized businesses. Everchanging security threats from both inside and outside the business network can wreak havoc on business operations, affecting profitability and customer satisfaction. Small and mediumsized businesses must also comply with new regulations and laws created to protect consumer privacy and secure electronic information. Security issues for small and medium – sized businesses are classified into 5 basic categories: Worms and Viruses As per research, Computer worms and viruses remain the most common security threat, with 75 percent of small and medium businesses affected by it.. Worms and v...
Read more

3.6 TOOLS FOR NETWORK SECURITY

There are many strong tools available for securing a computer network. Tools to protect your enterprise network have been evolving for the last two decades, roughly the same amount of time that people have been trying to break into computer networks. These tools can protect a computer network at many levels, and a wellguarded enterprise deploys many different types of security technologies. The most obvious element of security is often times the most easily overlooked: physical security—namely, controlling access to the most sensitive components in your computer network, such as a network administration station or the server room. No amount of planning or expensive equipment will keep your network secure if unauthorized personnel can have access to central administration consoles. Even if a user does not have evil intent, an untrained user may unknowingly provide unauthorized outside access or override certain protective configurations. Let us briefly discuss few of these network secur...
Read more