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The security of the home and the family is not left to chance. It is carefully planned. Security gadgets like your home security camera and alarm system are selected for their features and are matched to complement and enhance their effectiveness. Are you secure with your choices of security gadgets?

Before Setting Up Your Security System

Getting a home security camera will no doubt be first in your list of security items to get for your home. Additional fortification will come later as the gadgets are expensive, and installing a complete security system in your home costs a fortune. For these reasons, do your homework first before investing in a home security system. Think along these lines before you make a purchase:

* Your lifestyle
* Future expansion
* Flexibility of system
* Convenience of system
* Post-purchase service
* Warranties
* Free installation
* Standard connector and cables

Compare shopping for home security to selecting (more...)

Introduction

Electronic Nose (eNose) is a device used to detect and recognize odours/vapours, i.e. a machine olfaction device with an array of chemical sensors.

Alternatively, according to Gardner and Bartlett, (1994) definition [3]:

“An electronic nose is an instrument which comprises an array of electronic chemical sensors with partial specificity and an appropriate pattern recognition system, capable of recognizing simple or complex odours”

The most common use at the present time for the eNose is within the food and drink industries. In addition to this field, eNose can be used in other areas such as petroleum qualitative and quantitative analysis, detection of explosives, classification and degradation studies of olive oils, development of a field odour detector for environmental applications, quality control applications in the automotive industry, discrimination between clean and contaminated cows’ teats in a milking system, cosmetic raw materials analys (more...)

ReadyBoost works by using flash memory as another place to cache data (a cache is a temporary storage area where frequently accessed data can be stored for rapid access). Normally windows uses RAM for caching data and when RAM is running low, it uses the hard drive as ‘virtual memory’, a slower replacement for RAM.

The problem with hard drives is that they have mechanical moving parts which cause slower data access times as the read/write head of the hard drive has to move to the right part of the hard drive to access the required data. When there are lots of small random data reads, where small bits of data are scattered around the hard drive, the hard drive will be slow to access these bits of data.

Flash memory doesn’t have this problem, there are no moving parts and data can be located and accessed very quickly much like with RAM. The only drawback with flash memory is the data transfer rates. Flash memory has much slower data transfer rates than modern hard drives. A R (more...)

2.0 Steganography

Steganographic techniques have been used since World War I and World War II, Chemicals were developed and used as secret inks that become visible when brought in contact with other chemicals. A brief history of steganography would give us a valuable background.

2.1 History

Greek historian Herodotus recorded the earliest records of steganography. When Histiaeus had to send a secret message to his son-in-law, he shaved the head of a slave and tattooed a message, he waited till the hair had grown before dispatching him in order to avoid detection. Another Greek history was when Demeratus scraped the wax off tablets and wrote messages on the underlying wood he then covered the wood with wax again to conceal the message. The tablets appear to be blank and unused when inspected.

Invisible ink has always been a popular method of steganography. Ancient Romans wrote between lines using invisible inks made from substances like milk, urine and fruit juices. When it is he (more...)

Around the world, various nations utilize public video surveillance as a leading tool for monitoring movement and possible terrorist acts. Some of these countries have come to rely very heavily on video surveillance for aid in crime prevention. That is not a surprise. Results show that video surveillance is indeed making an impact in the fight against crime.

Oh Canada

Canada began taking advantage of video surveillance in the early nineties. It is widely used by such establishments as banks, restaurants, and convenience stores. Video surveillance is also usually present in offices, apartments, and transit stations. A large part of all robberies in Canada are captured on videotape. Needless to say, this is a huge help to law enforcement personnel. Even missing persons cases are solved with the help of surveillance systems.

Canada also uses video surveillance in recording license plates of all vehicles that pass through its borders coming from or going to the United States. It also keep (more...)

There are thousands of web sites on the Internet. More and more people now have them. This could be to promote your offline business, run an online business or just have a platform to air your thoughts on your favourite topic.

If you are an internet lover then there may come a time when you decide to make your own website. The website you choose to make could be in many forms . This article is going to deal with generating your own site from just the windows text writer - notepad.

Here are some basics that we need to know about starting your own site.

Domain Names

A domain name is the first thing you will need to get a website up and running. A domain name is the address or URL that people will type into the address bar on their internet browser to access your site. This will usually start with the www - e.g www.mysite.com. Domain names have to be unique so finding one that is not too long and ideally, very catchy is going to be tough. Do a search on Google for Domain names (more...)