Computer Viruses
Enviado por KarlyLugo • 4 de Noviembre de 2013 • 369 Palabras (2 Páginas) • 194 Visitas
COMPARISON TABLE
SOFTWARE LICENSING
ADVANTAGES
DISADVANTAGES
FREE SOFTWARE
• Available at minimal cost
• No spying on users
• Auditability
• Provides better security
• Learning curve
• Equivalent programs
• More technical ability needed
• Not all hardware
compatible
COPYLEFT
• Protect content creators’ own rights to work
• Copy left is considered the only mechanism able to compete with monopolistic firms that rely on financial exploitation of copyright, trademark and patent laws.
• Can lead to confusion about the user what is legal to use and what is not.
• Leads to the abusive use of the product,
PUBLIC DOMAIN
SOFTWARE
• can be copied and modified
• Not covered by copyright.
SEMI-FREE
SOFTWARE
• It can de modified
• You can distriubte
• It´s not free
• It allows the user to copy
FREEWARE
• Is free
Is covered by copyright
• You can’t sell freeware software and modified software must be freeware.
SHAREWARE
• Is free
• Can be copied and is covered by copyright.
• Cannot be modified, and it may be either a cut down
or temporary version.
PROPIETARY
SOFTWARE
• The software offers a stable system support if it fails or malfunction.
• The software is safe and guaranteed to be safe from dubious threats like programming bugs and viruses thus providing ease of mind for the user.
• Users need to spend a long time downloading and installing security patches to fix bugs announced by the manufacturer.
• Any improvements would usually require fees, which is often expensive
• Users are not allowed to describe and share the software as that are licensed.
COMMERCIAL-SOFTWARE
• It has most likely been thoroughly tested and is relatively bugfree.
• It may be expensive and you may need to routinely upgrade the software, which in turn will cost additional dollars.
ADWARE
• is a free install software on your PC with your permission
• legal program
• downloads advertising or ads, by means of another main program
TRIAL
• you can try the software before you buy it.
• it's usually a lot less expensive than store-bought software.
• If we want to use the program afterthe deadline, we need to pay for it and register the activation code.
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