Eyes: High power laser module beams do have the potential to cause serious and permanent eye injuries. An incident at a rave in Russia in mid 2008 where dozens of ravers were blinded by the in appropriate use of lasers is a tragic example. The higher the power of a laser, the more likely it is to cause injury. The official safe power limit given by the US Food and Drug Authority (FDA) is 5mW. This limit is conservative and lasers of 10mW or less will not cause eye injury.

Where high powered lasers are used and eye exposure is likely, laser eye protection are essential. These glasses are specifically designed to block different wavelengths of light so you need to make sure the glasses you are wearing will block the laser you are using. For example if you are using a green laser, you need to make sure the laser safety glasses you are using will block light with a 532nm wavelength.

Never under any circumstances use general purpose glasses such as sunglasses to protect your eyes from lasers. These glasses will provide little or no protection and in some cases may even focus the laser beam and create more damage.

Skin: As a rule of thumb, portable lasers which can go up to 600mW in power are not dangerous or capable of causing harm to skin. Starting at 75mW of power lasers will sting in several seconds and will sting instantly at 300mW or higher. Skin will only injured if the exposed part of the body is not removed from the beam after stinging occurs.

Lasers at powers higher than 1 watt are capable of causing serious skin injuries but these lasers are all bench mounted and normally used in controlled environments such as laboratories.

Radiation & Cancer: Despite what a large number ofpeople believe, normal green, blue, orange, red, violet and infrared laser pointers and laser modules do not give out harmful radiation or cause cancer. A fluorescent light, LCD TV or bar heater emit the same type of light as lasers and are just as much chance of causing cancer which is no chance.

Military lasers: Despite a ban in 1995 on lasers that caused blindness or eye injuries, military establishments all over the world have been investing billions of dollars in laser research. So these laser weapons are all vehicle based and non portable, have severe limitations on their effectiveness and have not yet officially been used in combat.

Portable lasers and laser pointers are being used by military forces in Iraq and Afghanistan on an individual basis. These lasers are used for non lethal deterrent and target identification. They do not cause any harm and at the powers and ranges used, are not capable of causing harm.

At the time of its introduction, the C64’s graphics and sound capabilities were rivaled only by the Atari 8-bit family. This was at a time when most IBM PCs and compatibles had text-only display adapter cards, monochrome monitors, and sound consisting of squeaks and beeps from the built-in tiny, low-quality speaker.

Due to its advanced graphics and sound, the C64 is often credited with starting the computer subculture known as the demoscene. Commodore 64 demos. The C64 lost its top position among demo coders when the 16-bit Commodore Amiga and Atari ST were released in 1985, however it still remained a very popular platform for demo coding up to the early 90s.

By the turn of the millennium, it is still being actively used as a demo machine, especially for music (its sound chip even being used in special sound cards for PCs, and the Elektron SidStation synthesizer). Unfortunately, the differences between PAL and NTSC C64s caused compatibility problems between U.S./Canadian C64s and those from most other countries. The vast majority of demos run only on PAL machines.

Even though the Commodore 64 was released in 1982, it was still a strong competitor for the range of the number of games released to the Sega Master System and the Nintendo Entertainment System, despite these consoles were released three to four years later than the C64.

Here is a video with 100 Commodore 64 games shown in 10 minutes.

COMMODORE AMIGA

Amiga software covers a wide range of software for the Amiga computer, both productivity and games, both commercial and hobbyist. The Amiga software market was particularly active in the late 1980s and early 1990s but has since the period 1996/1999 dwindled into almost only a hobbyist scene.

During its lifetime, the number of applications made available for the Amiga was in excess of 2,000, with over 10,000 utilities(these utilities are almost all collected into Aminet major repository). However, it was perceived as a games machine from outside its community of experienced and professional users. In fact, there were also more than 2,000 games available for Amiga.

Some Amiga programs were ported to other platforms or inspired new programs still used today, such as those aimed at 3D rendering or audio creations, e.g. Lightwave and Blender, whose development started for the Amiga platform only. The first multimedia word processors for Amiga, such as TextCraft, Scribble!, and Wordworth, were the first on the market to allow implement full-colour WYSIWYG (with other platforms still only implementing black and white previews) and even allowing the embedding of audio files.

Programs are still being developed for AmigaOS classic and AmigaOS 4 and related operating systems, MorphOS and AROS.

Here is a video with 100 Commodore Amiga games shown in 10 minutes.

EMULATORS

If you feel nostalgic and would like to try some of the games from your childhood or you want to try out some games from before you were born, here is your chance.

Commodore 64 emulator
Commodore amiga emulator

GAMES

Commodore 64 games
Commodore Amiga games

Source : Wiki, youtube

Before releasing iPhone, Apple focus on multimedia, film editing software and also song playback and graphic design. RecentlyIn recent time, the company has worked hard to make its hardware more compatible with the rest of the world. So, Apple iPhone users can connect to PC users easier.

Apple’s name turns to ne a status symbol because its success as the trendsetter of mp3 player, iPod, and it was only just before the business decided to branch out even further. Then, in June of 2007, Apple released the concept of the iPhone, given that there is really no place that Apple can not go.

All-in-One for Everyone

The iPhone is one of the most adaptable cell phone gadgets available everywhere in the market. A cell phone and an iPod all-in-one, the gadget provides a touch screen, virtual keyboard and shortcut buttons. It functions as an mp3 player, a camera and an internet browser with the use of Wi-Fi connectivity. And similar to all cell phones, it offers text messaging as well as voicemail.

The iPhone is better than oldest iPods. Users are able to play videos, watch television and full movies and even download music directly from iTunes right unto the gadget via the Wi-Fi feature. Users can sort music and videos in accordance to songs, artists, albums and genres, and they can even see the album art for most of their mp3s. The gadget is available with multiple hard drive sizes, from 4gb to 16gb, though the 4gb model is being stopped.

With so much space, it is apparent that so many software programs have been developed for use with the iPhone. The iPhone employs a version of the OS X operating system, the same that is used on Apple’s standard computers. This makes programs like Safari and iTunes to run well.

The regular OS X versions will not work with the iPhone encodings as the processor used is different though these programs need to be developed specifically for the gadget. Despite that, many of third-party companies have already started developing new and better programs for use with the gadget, hoping to trade in on the phenomenon as well as broaden the usage of their software.