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Monday, September 26, 2011

Biometrics Applications ( Activity 3 )



In today’s technology advancement era, where computers are a necessary nutrient to comply with and serve all the activities, the need for secured, reliable, simple and flexible system has advertently become a challenging concern for the organizations. The technology advancement has been a boon for speedy achievements of activity goals but at the same time the security breaches and transaction frauds are on rise.  Thus, the Biometric Technology has taken its pace to prevent any security breaches and fraudulent. This technique measures unique physiological and behavioral features of individuals to identify and verify them as the right person for the crucial information. The physiological features include face, fingerprints, hand geometry, iris, retinal, DNA etc. and behavioral features include signature, study of keystroke, voice etc.


METHODS OF BIOMETRIC AUTHENTICATION:

•    VERIFICATION: is the process of verifying the user is who they claim to be.
•    IDENTIFICATION: is the process of identifying the user from a set of known users.

Saturday, September 24, 2011

Find out your exact age! ;)

Find your age!

Wednesday, September 21, 2011

Bluetooth ( Activity 3 )

Bluetooth is a wireless technology for creating personal networks operating in the 2.4 GHz unlicensed band, with a range of 10 meters. Networks are usually formed ad-hoc from portable devices such as cellular phones, handhelds and laptops. Unlike the other popular wireless technology, Wi-Fi, Bluetooth offers higher level service profiles, e.g. FTP-like file servers, file pushing, voice transport, serial line emulation, and more.


Advantages:
- Wireless.
- No setup  needed.
- Industry wide support.

Disadvantages:
- short range (10 meters).
- Mostly for personal use.
- Fairly expensive.

Monday, September 19, 2011

Portable entertainment devices ( Activity 2 )

- Portable entertainment devices, such as: Mp3 or DVD- players, Which allow people to listen to music or watch films, are now commonplace. What do you think are the main advantages and disadvantages of this development?!


Advantages:
Small so easy to carry.
Does not disturb anyone.
Take it anywhere.
Easy to use for any one.
Not expensive.

Disadvantages:
Harms the ear if used for long time.
Easy to be damaged \ lost \ broken.
Requires lots of charging or battery change.

Sunday, September 18, 2011

Mobile phones ( Activity 1 )

A mobile phone allows calls into the public switched telephone system over a radio link. Early mobile phones were usually bulky and permanently installed in vehicles; they provided limited service because only a few frequencies were available for a geographic area. Modern cellular "cell" phones or hand phones make use of the cellular network concept, where frequencies are re-used repeatedly within a city area, allowing many more users to share access to the radio bandwidth. A mobile phone allows calls to be placed over a wide geographic area; generally the user is a subscriber to the phone service and does not own the base station. By contrast, a cordless telephone is used only within the range of a single, private base station.


Advantages: 
- you can carry a mobile phone with you so you don't miss important calls
- if you are lost, you can call for directions.
- if you are in an accident, you can call the police or ambulance - and if the phone has a camera, you can take pictures of the accident.
- you can listen to music, text, play games when you're bored.

Disadvantages:
- mobile phones can be expensive .
- they can damage your ear .
- sometimes the reception is poor in some areas, limiting your connectivity (you can't talk underground or on planes).
- people use the phone while they are driving, and this can cause problems.

Saturday, September 17, 2011

Welcome to my blog! =D

Welcome every1 to Annaf's blog ;)
Hope you enjoy it ^^
<3