Portable Devices
Mobile Phones
In this century we ' ve been using mobile phones alot , in our studies , work , hobbies and many other things. Well we can call the mobile phones that we use as our right hand that we can't live without. But we should know what are mobile phones , and their features :D
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| MOBILE PHONES :D |
What are mobile phones?
An electronic telecommunications device, often referred to as a cellular phone or cellphone. Mobile phones connect to a wireless communications network through radio wave or satellite transmissions. Most mobile phones provide voice communications, Short Message Service (SMS), Multimedia Message Service (MMS), and newer phones may also provide Internet services such as Web browsing and e-mail.
Mobiles phones features
Following are the important features of a mobile phone:
And many other features........
Now we'll explain one of the features which is the text messages.....
Definition: SMS stands for short message service. SMS is also often referred to as texting, sending text messages or text messaging. The service allows for short text messages to be sent from one cell phone to another cell phone or from the Web to another cell phone.
Including spaces, text messages traditionally can’t exceed 160 characters. SMS messages often use T9 predictive technology. T9 makes text messaging faster and more efficient on non-QWERTY cell phones without full keyboards.
FINALLY!!!! I brought a video about the mobile phones...... but keep in mind that this video is talking about an experiment that was done by one of the people, hope you will enjoy it :D
click on the following link :
This life in't only work , or doing the duties that you are asked to do . Sometime you need to have rest , to recreat or to entertain yourself.
For an example , you are goin on a long trip , and your picking up your MP3 player and your mobile videos devices. Are you going to spend all your time sleeping , or just watching ????
NoOOOOOOOoooo!!! So you'll directly go to your entertainment devices.
Therefore , what are entertainment devices?????
Entertainment Devices are those devices which are used to amuse the person in his free time , or whenever he is bored , like : MP3 players , DVDs etc.....
But do you think the inventors of these devices wanted the people to use these devices all the time ???
Let's see the advantages of these devices and the disadvantages to answer the above question ........Advantages of entertainment devices:
1- Instead of making a compact disc with a maximum of 21 music tracks, many companies redesigned their discmans to play raw mp3 files.
2- These MP3 players don't take much space as their size is like your finger size.It can easily fit into their pockets and they can take them anywhere they want.
3- Other than mobile music devices, there are many mobile video devices as well. These gadgets allow you to take your favorite videos with you wherever you go Also.
4- These devices have output features that allow you to hook up your device to television sets.
Now let's see the disadvantages:
1-mp3 player's headphones or earphone contain peices of magnet. When the music you're playing, release an ultrasonic tone, that bounces to your ear drums. Which is very dangerous.
2- You won't be social at all as you are spending all your times on these devices.
3- Your eyes will be affected due to the spending hours on the DVDs.
4- The price of the DVD Player is a lot.
5- It wastes a lot of your electricity due to which your bill is high
So , finally you don't have to spend all your time on technology as it ' ll affect you and won't be useful , just balance to have fun in your life too.
WHAT IS GPS?????
The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites placed into orbit by the U.S. Department of Defense.
The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites placed into orbit by the U.S. Department of Defense.
ACTUALLY THIS PICTURE SHOWS US THE OLD GPS !!!!
WHILE HERE WE CAN SEE THE NEWEST GPS !!!!
NOW........ What is Satellite Navigation System????
A satellite navigation (sat nav system) is a system of satellites that can help users determine the position of an enabled device anywhere on the earth’s surface to within a few hundred metres.
FINALLY .............
Although these devices are so important but they can be having disadvantages.^___^
Biometric system
Biometric Systems
Biometric recognition, or biometrics, refers to the automatic identification of a person based on his/her anatomical (e.g., fingerprint, iris) or behavioral (e.g., signature) characteristics or traits. This method of identification offers several advantages over traditional methods involving ID cards (tokens) or PIN numbers (passwords) for various reasons: (i) the person to be identified is required to be physically present at the point-of-identification; (ii) identification based on biometric techniques obviates the need to remember a password or carry a token. With the increased integration of computers and Internet into our everyday lives, it is necessary to protect sensitive and personal data. By replacing PINs (or using biometrics in addition to PINs), biometric techniques can potentially prevent unauthorized access to ATMs, cellular phones, laptops, and computer networks. Unlike biometric traits, PINs or passwords may be forgotten, and credentials like passports and driver's licenses may be forged, stolen, or lost. As a result, biometric systems are being deployed to enhance security and reduce financial fraud. Various biometric traits are being used for real-time recognition, the most popular being face, iris and fingerprint. However, there are biometric systems that are based on retinal scan, voice, signature and hand geometry. In some applications, more than one biometric trait is used to attain higher security and to handle failure to enroll situations for some users. Such systems are called multimodal biometric systems.
A biometric system is essentially a pattern recognition system which recognizes a user by determining the authenticity of a specific anatomical or behavioral characteristic possessed by the user. Several important issues must be considered in designing a practical biometric system. First, a user must be enrolled in the system so that his biometric template or reference can be captured. This template is securely stored in a central database or a smart card issued to the user. The template is used for matching when an individual needs to be identified. Depending on the context, a biometric system can operate either in a verification (authentication) or an identification mode.
Verification vs. Identification:
There are two different ways to recognize a person: verification and identification. Verification (Am I who I claim I am?) involves confirming or denying a person's claimed identity. On the other hand, in identification, the system has to recognize a person (Who am I?) from a list of N users in the template database. Identification is a more challenging problem because it involves 1:N matching compared to 1:1 matching for verification.
Database
Database
Definition Of Database:
A database is a structured collection of data. The data are typically organized to model relevant aspects of reality (for example, the availability of rooms in hotels), in a way that supports processes requiring this information (for example, finding a hotel with vacancies).
The term database is correctly applied to the data and their supporting data structures, and not to the database management system (DBMS). The database data collection with DBMS is called adatabase system.
The term database system implies that the data are managed to some level of quality (measured in terms of accuracy, availability, usability, and resilience) and this in turn often implies the use of a general-purpose database management system (DBMS).[1] A general-purpose DBMS is typically a complex software system that meets many usage requirements to properly maintain its databases which are often large and complex.
Uses of database :
Databases for Businesses
- The business world depends on databases 24 hours a day/seven days a week. Inventory, order processing, payroll, accounting, shipping and transportation routing are often tracked within a main database that keeps the company functioning.
Databases for Educational Institutions
- From elementary schools to colleges, educational institutions have used databases to keep track of students, grades, transfers, transcripts and other student data. There are even specialized database packages geared toward schools and colleges.
Databases for Non-Profit Organizations
- Like businesses and educational institutions, non-profit organizations must have a system to keep track of information. Many charities and other non-profit groups use a database for keeping track of donations, volunteers, hours served in the community, clients helped and other information related to the organization.
Databases for Household and Family Management
- The database also has a home in household and family management for many individuals and families. Many individuals/families use a database to keep track of family birthdays, bills and expenses within a home; addresses of friends and relatives; movie/DVD collections; and other lists.
Databases In Use Everyday
- Each time you make a purchase and the sales clerk asks for a your address or ZIP code, your information is kept and stored in a customer database. These collections of data are used to send mailings of special offers, discounts and other deals.
Control Systems
Car Manufacture Robots
Significance Or Importance of the Robots
Function Of The Robots
To make the robots work , a computer programme is being installed on its computer controller . This helps in providing it with a precise instructions , therefore , the robots will do the orders which are asked to do , such as : Placing things , Rotating , and Welding. Robots can do jobs in extreme conditions. Robots can help the human in manufacturing the cars , by rotating it , leaving the human beings to work on some parts on it .
Identification Of Robots
Almost all robots in manufacturing cars , are single armed with a computer controller . Different robots are having various appendages , depending upon their job (s). For instance, a robot that places windshields will have a vacuum-powered suction grip to handle the smooth glass, while a welding robot will have an arc welder to fuse two pieces of metal together.
Benefits Of Robots
Robots have been a boon , for doing the manufacturing of cars with low percentage of worker injuries , including the unfortunate accidents that can lead to major harm.
Finally, robots save on the cost of labor: There are no sick days, strikes, work slowdowns or other problems that can crop up with humans. Robots can, in fact, work around the clock with a minimum of human supervision.
Now , watch this movie that shows how those robots can manufacture the wheels of the cars:)
Function Of The Robots
To make the robots work , a computer programme is being installed on its computer controller . This helps in providing it with a precise instructions , therefore , the robots will do the orders which are asked to do , such as : Placing things , Rotating , and Welding. Robots can do jobs in extreme conditions. Robots can help the human in manufacturing the cars , by rotating it , leaving the human beings to work on some parts on it .
Identification Of Robots
Almost all robots in manufacturing cars , are single armed with a computer controller . Different robots are having various appendages , depending upon their job (s). For instance, a robot that places windshields will have a vacuum-powered suction grip to handle the smooth glass, while a welding robot will have an arc welder to fuse two pieces of metal together.
Benefits Of Robots
Robots have been a boon , for doing the manufacturing of cars with low percentage of worker injuries , including the unfortunate accidents that can lead to major harm.
Finally, robots save on the cost of labor: There are no sick days, strikes, work slowdowns or other problems that can crop up with humans. Robots can, in fact, work around the clock with a minimum of human supervision.
Now , watch this movie that shows how those robots can manufacture the wheels of the cars:)
Central Heating Systems
Central heating systems provide heat from a single point to multiple rooms, typically with a furnace or boiler and vents, pipes, or radiators. Unlike local heating systems in which heat is generated in a fireplace or stove and limited to a single room or small area, central heating systems are designed to warm larger areas or entire structures. The most common method of central heat generation requires the combustion of fossil fuels such as oil, gas or coal. Wood-burning furnaces and electric heating systems are also available. With forced air central heating systems, the generated heat is distributed by forcing hot air through ductwork, vents and plenums. Central heating systems that circulate water or feed steam through pipes are also used in residential and commercial construction. Central heating systems that burn fossil fuels for hot water circulation require supply lines, a boiler or heat exchanger, heat pumps, and pipes and/or radiators. With gas heat, the supply lines may run from a propane tank located outside the home, building, or structure. Natural gas pipes and propane pipes should comply with building codes and be installed by a professional plumber. Boilers and heat exchangers are available in various configurations. Typically, heat exchangers are categorized as parallel-flow or counter-flow. Specific types include shell and tube, plate, and regenerative. Heat pumps are used to circulate the water used in central heating systems. Radiators are wall or floor-mounted panels through which the heated water passes before releasing heat into rooms. Like other central heating systems, hydronic heating systems use the hot water from a boiler or hot water heater as the medium for heat transfer. Radiators are common, but radiant loops are also used. Aluminum-finned copper tubing and a copper or cast iron baseboard runs in a continuous loop between rooms. By using a mono-flow T fitting, a single pipe can feed the entire loop. Radiant floor heating systems are also available. These central heating systems include pipes that can be embedded in a concrete slab or attached to the underside of a subfloor. To radiate heat downward from a ceiling, copper pipes may be attached to the ceiling joists.
Working Practice
Working Practice
There are various types of working practice that the ICT allows us to follow , they are :
1- Teleworking - it is a method of working which allows the employees to do their job accurately , and systematically . But Home working or Teleworking is being divided into different categories , they are :
* Traditional mobile workers - like representatives , and delivery drivers . Well , they recieve their instructions and information via mobile phones , fax machine or even computers , either in their homes or vehicles.
* Managerial and Professional staff - those who spend most of their days and times away from the base office , while working on their asked jobs , similarily , they get the instructions and infromation via phones , computers and fax machines.
* specialists or office support staff - those employees who take with them lot of duties and work on them.
* Other Workers - who operate from local centers with coputers or telecommunications , sometimes it is called as "telecottages".
ADVANTAGES :
1- Reduce time spent in travelling
2- Increase productivity
3-More freedom for the employees.
DISADVANTAGES:
1- It is not suitable for all jobs.
2- Reduce the sociality for the empolyees.
3- Health is being harmed.
2-Remote working: it is the work done by the employees , but away from the empolyers place business. Even the saved datas of the employees will be transferred and stored in the server of the company , which in turn the employees will be able to sign in to his of her PC and get the stored datas.
ADVANTAGES:
1-Reduced stress-levels
2-Higher job satisfaction
3-Less pollution
3-Less pollution
4-Less need for expensive office space and business utilities.
Ict and Advertising
Advertising
advertising is a way of promotion that is non - personal , and it can be spread through the public by using various methods , and as a result costs must be paid.
Naturally , any person who can run a project , in various fields , he/she must have or require methods to spread it all around. These methods include :
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1- Printed advertising
This way is done , through publishing the advertisement in papers , newspaper , magazines , booklets , etc.
2- Broadcast Advertising
This is the way , through which the advertisement can reach people by the communication methods ex: radio , television. Actually this way is the most dominant way of advertising.
3- Out door advertising
Through viewing the advertisements to the consumers who are outside home.
4- Cell Phones & Mobile Advertising
Nowadays , many advertisements have been published through sending messages to the mobile phones , or even the Ipads , Nooks , and other portable electronic devices with internet connectivity.
5- Online Advertising
Any advertising you see in the (WWW) world wide web , then this is included in the online advertising circle , and this means even the social network websites are also included in publishing the advertisements.
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