Alden Jerry asked:


Restoring the rare moment of one’s life is the most beautiful and expensive possession. The memories of childhood, the convocation ceremony in the college and the lonely walk at old age are the special moments for everyone. All these moments can be captured with a simple click of soft button and can be stored for life-long memory.

A digital camera captures video or still photographs digitally by recording images on a light-sensitive sensor. There are also many digital camera which can record sound and moving videos as well as still photographs. Restoring the photographs is one of the prime functions of digital camera. With the captured images manipulation can be done through digital cameras, it has all the features for making changes to photographs.

Digital cameras are becoming smaller day by day and the features are also increasing in it. The choice of digital camera depends with the requirement of the user. There are various category of digital cameras like the compact digital cameras, ultra compacts, bridge cameras, digital single lens reflex cameras, line-scan camera, compact digital SLRs and digital SLRs.

This days digital cameras are used in many devices from mobile phones to personal digital assistants and vehicles. The Hubble space telescope and other astronomical devices are having specialised digital cameras. There are high-tech digital cameras available in the market with which one can take underwater photographs. The underwater digital cameras are very useful in capturing sealife, scuba diving and something artistic under the sea.

Taking some underwater pictures is everyone’s dream and while exploring the deep sea, one can take photographs and can save magical memories that can be relived until the next undersea adventure. These photographs about looking into the eyes of rarely seen creatures can be permanent recorded from the underwater digital cameras. There are various underwater digital cameras namely sea and sea DX-1G compact digital 10.0 MP camera, Intova IC-700 7.0 MP digital camera with underwater housing, Sealife SL 320 Reef master mini underwater digital camera, VuPoint DC-WPC-ST531TBLK-VP underwater digital camera and many more.

The most important accessory of a digital camera is the memory card. It is used to store the pictures taken on digital cameras. The memory card in the digital camera can be equated with hard disks in computers. The memory card varies in capacity and the additional memory cards are generally either 128 MB or 265 MB. Memory Stick, Compact Flash and Smart Media, etc. are all different type of memory cards. The use memory card is dependent on the users camera type, the memory card can be re-used, once saving the required photographs on the computer, or copying them on a CDs etc. The most commonly used card in digital cameras is the 16 MB cards, and most of the digital cameras make use of removable storage memory for the purpose of recording images.

There are also cheap digital cameras available in the market; these camera are very handy and useful for all purpose. The cheap digital cameras is equipped with all the high-technology features and are very result oriented. The presence of this type of camera can be felt in the market, where it has a good share in the revenue. Many renowned companies are coming up with cheap digital cameras to cater the demand of the customers and to capture the market. This cheap digital cameras are second to none in terms of quality and durability as compare to any digital camera available in the market.

The demand for digital cameras are increasing with each passing day with some brilliant and high-tech digital camera in the market. The manufacturers are catering to the demand with all new features added everyday in the cameras.

Ben Tan asked:


I am currently using DSL Router with 802.11N network. So is my notebook.

My notebook is using the Wireless-N adapter as the notebook’s build-in wireless adapter comes with 802.11g standard.

I have been looking around to get a wireless internet camera with 802.11N network. The purpose is to maximise the bandwidth for my wireless internet camera without any lagging of the video signal.

However,currently, on the market, it seems that there is no 802.11N standard wireless internet camera available yet as far as I am concerned.

Most of the internet camera comes with wireless or wired R45 network connection and are in 802.11b or 802.11g network.

I have checked with the Dlink,,Linksys and other distributor and find that there is no offer for 802.11N. SInce I needed the wireless internet camera urgently, I have no other alternative but to purchase the wireless internet camera with 802.11g standard.

I have purchased the Linksys WVC200 Wireless -G PTZ internet camera as showed above. To know more about this product,Click here.

This camera provides both wireless and wired network connection.

It has high quality video,flexible control remotely with Pan, tilt , and zoom.

It works terrific.The price is also quite competitive.

There is not much of video lagging when you control the internet camera remotely from outside of your office provided the camera is connected in the wired network to your router by mean of R45 cable. However, if you connects the internet camera to the router wirelessly, and you try to control the wireless camera remotely outside from office, there seems to be some video lagging problem. The reason why I need to do this is due to my router is not in the same room as the wireless internet camera.Moreover, the room where the wireless camera is doesn’t have the network point (Rj45 socket).

I knew there is no much I could do as there is a limitation of the 802.11g network.

It can only achieve a maximum throughput of 54 Mbytes wirelessly no method how good tuning you can do with the camera resolution and other features.

However, desperately to solve this video lagging’s probem, i checked in the market to see if there is any gadgets that could help to solve this issue.

Then I came cross a product called HomePlug AV Ethernet Adapter from Shiro which eventually solve my problem. It boost up my wireless internet camera signal up to 200 Mbytes which resolve the lagging problem.

This adapter also save you the hassle of the physical network wiring. It can also be use to connect between any network devices ie. printer server,wireless game adapter, wireless camera etc to the router wirelessly.

The adapters work in a pairs.Let assume that the wireless router is in room A and the wireless camera is in room B. In room A, you will connect one end of the adapter1 to the power source.

From the adapter1, link its network connector (using RJ45 cable) to one of your router port.From room B, do the same thing, connect the adapter2 to the power source.From adapter2, link its network connector (using RJ45 cable) to the wireless internet camera.

The adapter is not strictly to be used for router only.Basically, you can connect remotely between any network devices together.

The adapter make use of your in-house power circuit to transforms into a high speed wireless broadband and network backbone for transmission of digital data, voice, audio and video.

In this way, the adapter allows me to connect my internet camera wireless without short chain the bandwidth performance of my DSL network.

The model which I purchase is Shiro HL109E as showed on the right.

I believe there may be some similar product available.However, so far only this product offer the Powerline Networking up to 200Mbps.

 

 

Kevin Bernard asked:


Cables are the lifeline of the electronics communication systems. Whether you are connecting a modem to your computer or setting up your home theater system, having right types of video cables are important for the proper running and safety of the equipment as well as for you.

The basic components of a cable are: the conductor, shielding, and the connector. The primary goal of any cable is to transfer a fully preserved signal from its source to the destination. Even the best cables loose some signal strength. The loss is caused by outside interference, such as radio frequency and electromagnetic interference. Low quality cables provide least protection from this interference while high quality cables keep away such interferences.

What types of video cables you choose, it should maintain the clarity, dynamics, and power of the original signal. TV screens and DVD players are capable of great detail and clarity. To ensure the best picture quality you should choose cables that don’t want lose part of the signal. The two main categories of video signals are analog and digital. Analog has been the standard for long  but the improvements in technology have produced high quality digital sound and  image that revolutionize the quality of pictures and sound we see and listen.

Here is the description of some of the best video cables you can choose for your video equipment.

DVI Cables

Digital Video Interface is relatively new. It offers a high-bandwidth digital-to-digital video connection that provides unmatched video quality. DVI is capable of maintaining the video signal in its purest digital form, obtained from satellites and DVI-equipped DVD sources to the monitors or projectors.

HDMI Cables

High-Definition Multimedia Interface is a more evolved version of DVI cables. It provides greater bandwidth than DVI and transmit higher-definition uncompressed digital video signals. It has a smaller and sleeker connector than DVI. HDMI connections are equipped with the High Definition Content Protection (HDCP) protocol.

Component Video Cables

Component video cables are the best non-digital cables for high definition video. These cables break down the video signal into three cables, thus enhancing the image clarity and sharpness. They look just like the composite cables but provide larger clarity. Both of them use RCA type connectors.

Composite Video Cables

Composite video cables use an RCA-type plug and jack. It is a direct video connection and is superior to the RF type of connection but inferior to S-video and component video. However all video signals are carried on a single conductor, which is not the ideal form of transmission. Usually composite video cables are sold bundled with a pair of stereo audio cables for convenience.

S-Video Cables

S-video cables are considered much better than composite video cables. These cables break the video signal into two component parts and greatly improve picture quality. These days S-video inputs are found on most high-end TVs and AV components.

RF Coaxial Cables

Though RF coaxial cables are the most common but the least desirable for AV connections. Both the audio and video signals are ‘modulated’ onto one cable, thus making it impossible to transmit high quality signal.

Coaxial RF cable connects your cable box or digital satellite box to your TV. It can also be used to connect a VCR to your TV.

Advantages of IP security camera:

1) IP security camera use less equipment,

2) IP security camera use less excessive wiring,

3) Therefore IP security camera is very convenient to install and maintain,

4) So IP security camera provide less cost to install and maintain,

5) IP security camera use less power due to using Ethernet so therefore less energy consuming,

6) So it will provide less long term running cost although IP security camera may cost higher during early purchase compare to analog,

7) In term of specification IP security camera is more versatile and provides more features.

IP security camera usually give a higher resolution image that mean clear images as seen in PC compare to analog camera.

9) With IP security camera you shall get more advance feature that you can choose from. Such as:

a) Day/night cameras,

b) Motion sensors,

c) Removable infrared filters for sharper colors by day and clear black-and-white footage by night.

d) Encrypted signals allow for secure communication,

e) IP security camera also can also directly be control the zoom and tilt capabilities,

f) Monitor alarms,

g) IP security camera also can provide 2 ways of communication (not only watching),

h) There is a program can be use to activate lights or locks if someone triggers those alarms,

i) It also has software that you can use to program the IP security camera to operate as what you need such as switch ON/OFF timer and what information you need to send to you or anybody else.

For your information if you already have an analog camera, you can switch them to IP security camera system. You can convert the signal to digital using a network video server.

In conclusion IP security camera will play an important role to us for a better security system. All you need is the most cost effective and most efficient system in the long run.

More at IP Security Camera.



By: Dr Security

The amount of crimes are rising at an astounding rate. Home invasions are common in most neighborhoods, even those that are known for being relatively crime free.

There are varieties of alarm systems on the market, but many of them are quite expensive and, in addition to being expensive to install, there are monthly fees and other costs involved.

There is one unique, effective and affordable alarm available today. It is one of the most innovative alarms created. The Auto Dialer Security and Safety Alarm is a passive infrared system that monitors any motion in an area where it is set. The armed unit guards the area and if movement happens, a 105db alarm sounds and the Auto Dialer Security and Safety Alarm will call up to five phone numbers that you have pre-set.

The Auto Dialer Security and Safety Alarm can also be used in a store in chime mode, so that when motion is detected, such as when anyone enters the store, you will be alerted. The alarm is easy to set, runs on a 9 volt battery and only has to hook into your phone system with a regular phone cord. Then mount the alarm between 5 and 6 feet above the floor and it is ready to protect you.

The Auto Dialer Security and Safety Alarm is also versatile. You can turn the chimes on and off, as well as the alarm on and off. You can change the phone numbers. The numbers are easy to see and read and there is a pause key, panic key and programmable security code. Last, but not least, there are no monthly fees!



By: Security Girl

MACE Brand is one of the oldest and most respected brands in self defense. They make a wide variety of self-defense items and are front-runners in the self-defense market.

Most people associate MACE brand with pepper sprays of different varieties, but the company offers one unique product which is synonymous with self-defense – tear gas.

Tear gas has been used for many years – not always in a good way. It is a potent weapon against an intruder or attacker and is different from pepper spray in that it is made up of a different solution, however it will stop a would-be attacker in their tracks. When your eyes are burning and tearing, it is impossible to stay oriented with your surroundings. The fact that you can disorient someone who means you harm provides you with the opportunity to get away to a safe place and get help.

MACE brand was the first and original brand of pepper spray. Their products are considered to be simply the best. They are effective and affordable, as well as convenient and easy to use.

With crime on the rise every minute most people are looking for ways to protect themselves without necessarily killing the perpetrator with a gun. If you are looking for an alternative to using a gun for self defense and you want to find a product that is easy to use, reliable, affordable and up to the task of stopping an intruder or attacker, take a look at the line of self-defense products that MACE has available.



By: Security Girl

Mobile Broadband asked:


With today’s competition for declining mobile broadband sales becoming increasingly competitive, it isn’t surprising that 3 are temping customers with an offer they can’t refuse; a free 2GB iPod Shuffle worth £44 when they purchase mobile broadband.

Customers signing up to either 3’s 5GB or 15GB mobile broadband packages will receive Comet vouchers to the value of the iPod to allow them to purchase the iPod directly from Comet, together with a free USB modem and free delivery with their order.

Customers are given a time period of 12 months to redeem their vouchers at Comet which will be reassuring for those customers are might be suspicious that this offer simply sounds too good to be true.

The mobile broadband package costing customers a reasonable £15 per month is one of the most competitive deals out there at the moment, although a decent mobile broadband package for a light user can be obtained for less than £10 per month at present, with a free USB modem and free delivery.

We have recently seen O2 also resorting to giving away a free mobile phone with all mobile broadband pay monthly contracts, which was a huge success with their Sony Ericsson T280i worth £50 selling out and subsequently being replaced by the Nokia 2630.

Many companies now offer laptops when mobile broadband is purchased too, which reflects how keen these companies are for sales in the current economical climate.

O2 were also the first provider to offer home broadband and mobile broadband bundled together for less than £20 per month.

To find our more about 3’s free iPod Shuffle with Mobile Broadband giveaway, why not visit us directly.

David Urmann asked:


Like any other wireless system, a wireless router gives you freedom to free the valuable workspace from the tangling wires. Technically speaking, a wireless router is a special network router that connects different workstations wirelessly and routes network traffic between workstations and an existing Internet connection.

Some of these routers are actually wired routers with wireless access points built in so you can have wired and/or wireless at the same time. Another choice is a router with a built-in DSL or cable modem. You can also consider a hardware & software security combo box to connect and protect your home network or office network. The wireless device is capable of sharing Internet connections amongst several computers via 802.3 Ethernet and 802.11b/g wireless data links.

These routers are quite popular among the network users. Moreover it is as good as using the wired networks with absolutely no compromise on the connectivity, speed, and security. A wireless LAN router generally adds a built-in access point function to a multi-port Ethernet router.

With this it combines multiple Ethernet networks with wireless connections as well. A typical wireless LAN router includes four Ethernet ports, an 802.11 access point, and sometimes a parallel port so it can function as a print server. This gives wireless users the same ability as wired users to send and receive packets over multiple networks.

There are many manufacturers of these wireless devices, popular of them are D-Link, Netgear, Actiontec etc. Out of these, the D-Link routers is what we find is the popular product amongst the home and commercial users. These routers have an uncanny ability that delivers superior performance capability to transfer large files and handle heavy network traffic.

Most of these routers offer many important benefits in the home and small office setting. For instance, you can opt to a cable modem service that provides a single IP address through DHCP to the router, and the router then provides IP addresses via DHCP to clients on your local network. This helps to a great deal whenever that client needs to access the Internet.

Routers are very much ideal for wireless networks in commercial or public areas, especially if there are multiple networks that are accessible. These routers if considered in an enterprise environment give network administrators an extra way to monitor and update their networks.

As these routers only send packets to specific, directed addresses, they do not forward the broadcast packets that are sent out by other devices. A big advantage of such routers is that they provide an added layer of security, both on the wired side and wireless side. The wired side is usually protected by a firewall and has extensive access control filters.

That is why, not only the wireless routers are more user friendly and space saving, they are also great on speed, and have an ability to handle multiple networks with ease and without sacrificing the security.