What is copyright? Copyright is a form of protection grounded in the U.S. Constitution and granted by law for original works of authorship fixed in a tangible medium of expression. Copyright covers both published and unpublished works.
Software copyright .
It is used by proprietary software companies to prevent the unauthorized copying of their software. It is also used by proponents of open source software to encourage the disclosure of improvements to source code .
Hacker's attack aiming to redirect a website 's traffic to another, bogus website.
Pharming can be conducted either by changing the host file on a victim’s computer or by exploitation of a vulnerability in DNS server software .
Phishing is an attempt to criminically and fraudulently acquire sensitive information, such as usernames, passwords and credit card details, by masquerading as a trustworthy entity in an electronic communication.
Hacking involves breaking codes and passwords to gain unauthorized entry to computer systems. Once into a computer system a hacker can do an enormous amount of damage. Computer program that can copy itself and infect a computer without permission or knowledge of the user.
Health Risks: Repetitive Strain Injury ( RSI ) - This is caused by repetitive finger movements over long periods of time and can cause serious pain in the finger joints. Solutions - to reduce the risk of RSI you should:
Have your keyboard positioned correctly
Develop a good typing technique
Take regular breaks from using the keyboard
Use ergonomically-designed keyboards where the keys are split and contoured for the hands.
It is important to realize that working with computers, particularly for long periods of time , can be dangerous to your health. To create a safe working environment, the following factors should be considered. Next
RSI Issues Eye Strain - Eye strain is quite common among people using monitors over extended periods of time. It can result in irritated eyes and blurred vision. Solutions - to reduce eye strain, users should look away from the monitor and focus on a distant object from time to time to relax their eye muscles. A screen glare deflector can help some users.
Back problems - Sitting at the computer for long periods of time is never comfortable. Leaning back in the chair reduces the pressure on the spine but then the arms have to reach forward to the keyboard creating muscle tension which leads to aches and pains in the neck, shoulders, back and arms. Solutions - while working at the keyboard, the correct seating position is sitting upright with the feet flat and the lower arms and thighs in a roughly horizontal position. Adjustable chairs that give the maximum support for the back are also best.