To connect one electronic device to another, one normally uses cables, wires, plugs
and a vast number of other components which make the device quite complicated. For example a TV will normally connect to a VCR and a cable box. with a remote control for all three components. Or a CPU unit will have to be connected to a mouse, a keyboard, a printer and so on with many cables and plugs. Sometimes, it becomes so complicated that one wonders whether considering a degree in electrical engineering would not be too far out.
But recently, a new kind of wireless technology has been making waves in the info-
tech industry . This is what is known as Bluetooth technology, it is wireless and
automatic and has been changing lifestyles the world over.
Bluetooth is a standard developed by a group of electronics manufacturers that allow`
any kind of electronic equipment to make its own connections, without wires, cables
or any physical contact. Bluetooth works on global radio-frequency (RF) standards,
which operates on the 2.4 GHz ISM band. So when you travel, you don`t have to
worry about keeping track of a briefcase full of cables and components . Its also
inexpensive and you don`t need to be an electrical engineer to figure out where the
wires will go.
Actually, you don`t need to do anything really. The devices find one another and
strike up a conversation without any user input at all.
Infra red also is a wireless technology and relatively cheap; but Bluetooth scores over
this because it does not need a "line of sight".
In a roomful of devices which are all running on Bluetooth, will there be a mix up?
The answer is no, because the manufacturer of each product ( cordless, pc, dvd, tv etc) has programmed each unit with an address for a particular type of device. When
The base of say a cordless phone, is turned on, it sends radio signals asking for a response from other units with an address in a particular range. Since the handset
of the cordless phone has a corresponding address , it will respond. Even if these devices receive a sienal from another device it will ignore them since it is not from within a known network. Once the network is established the devices begin "talking"
Homework Help (Keys to Success)
Homework! Wouldn`t we all love to avoid it! But usually we cant and if we do, we have to face the prospect of punishment the next day. So what do we do" To get an answer to that question we need to understand first the reason why teachers give us homework in the first place, First, homework helps you to understand and review the work that was done in your class. Secondly, it helps the teacher to see whether the student has understood the lesson and thirdly, it helps the students to learn how to find and use more information on a subject. But most importantly it is the link between the school and home to show what progress is happening.
When we sit down to do our homework we are often distracted by many things around us and end up losing out on time and work. This often leads to homework piling up and becoming stressfUl for us and our parents. But if you follow these few easy steps, learning can become fun and homework won`t seem like such a punishment. After all who doesn`t want to see good grades at the end of the day?
1) Avoid Clutter : Create your own work station or place to study. A desk with some good lighting and preferably near a window so that you can get natural light
during the daytime is ideal. Take pains to keep your desk free of clutter. A desk full of untidy books and pencils and odds and ends will automatically put you off.
2) Reach Out: Keep everything at arms length. Organize your things before you sit down.
3) Correct posture : Get yourself a comfortable, straight backed chair. Your spine is
important. Sit straight, don`t slouch.
4) Make a time-table : Set targets which you can accomplish. It will help you put
things in order. Tick off things that you have completed as you go along. It will help you to see how much you have achieved.
5) Priorifize : Try to arrange your work in such a way that you do the most important
or most difficult task first.
6) Concentrate : There may be many distractions -a fun TV soap, an engrossing
cricket match, or that oh-so good book you just mush finish. Discipline your self
that you will look at them only when you have done your homework.
7) Work Late : It never hurts to work for a couple of hours extra some nights. It will
help you catch up on lost time and keeps you abreast and possibly ahead of your
8) Sit hack and take stock : At the end of each week, review what progress you
have made and how much you have to catch up on. You will be surprised to find how good it feels to look back on work that has been accomplished successfully.
9) Read: In your spare time read as much as you can about anything and everything.
10) Enjoy and Have Fun : Do keep some time for sports and hobbies and time to
enjoy yourself. Remember, if you enjoy work, nothing can stop you from
reaching for the skies.