BLOGGER TEMPLATES AND TWITTER BACKGROUNDS »

Saturday 12 May 2012

worK in HEAdache....=(

i've got headache suddenly..so sorry 4 the simple post ok...not lazy to  make it more enjoyable but im feel like my head is turn around 4 a thousand time...haiiyyaaaaa~~ (@_@) so lets straight to the point k...

WiFi:
Fairly recently the IEEE 802.11 standard became more popular as it suites mobile computing devices really well. The IEEE 802.11 standard is another term for WiFi essentially is wireless networking. This standard allows two computers that have wireless NICs to communicate with one another with no strings (wires) attached. This standard makes use of radio waves that are transmitted through the air to communicate. Speeds of either 54 Mbps or 108 Mbps are supported but higher speeds are in the pipeline.

IEEE (Institute of Electrical and Electronics Engineers).
The IEEE describes itself as "the world's largest technical professional society; promoting the development and application of electro technology and allied sciences for the benefit of humanity, the advancement of the profession, and the well-being of our members." One of the technologies they have developed is known as Ethernet 802 standard which governs local area networks (wired LANs). Ethernet governs the way in which Data Communications are done across the spectrum.

Difference Between 3G And 4G

4G speeds are meant to exceed that of 3G. Current 3G speeds are topped out at 14Mbps downlink and 5.8Mbps uplink. To be able to qualify as a 4G technology, speeds of up to 100Mbps must be reached for a moving user and 1Gbps for a stationary user. So far, these speeds are only reachable with wired LANs.

different:
1. 3G stands for 3rd generation while 4G stands for 4th generation
2. 3G technologies are in widespread use while 4G compliant technologies are still in the horizon
3. 4G speeds are much faster compared to 3G
4. 3G is a mix of circuit and packet switching network while 4G is only a packet switching network

Cellular phone
is a device that can make and receive telephone calls over a radio link whilst moving around a wide geographic area. It does so by connecting to a cellular network provided by a mobile phone operator, allowing access to the public telephone network. By contrast, a cordless telephone is used only within the short range of a single, private base station.
In addition to telephony, modern mobile phones also support a wide variety of other services such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, gaming and photography. Mobile phones that offer these and more general computing capabilities are referred to as smartphones. 

so simple right???hhmmmm...dun really like this kind of post but sorry i cannot help mith my worse condition...huhuhuhu...(T.T)


THE CONTINUE... XD


the title of this topics looks like a movie title..hahahaha..its early in the morning now..so GOOD MORNING!!!what a fresh morning....ermmm its a heavy rain outside my house and im keep on writing this and that just to ignore what had happen..so scarryyyy ok 2 see a heavy rain..huhuh..(-.-') But to make it more enjoyable i had listen one of my fave songs..just to feel sentimental in the morning..what the heckk!!! hahahahahaha...


just like to share this song..what a fresh morning...(^.^)V

so in this post, i think i want to write about RADIO FREQUENCY...did u know anything bout it??i have heard bout it before but not really sure about what is it exactly..it is a rate of oscillation in the range about 3kHz to 300GHz which corresponds to the frequency of radio wave and the alternating currents which carry radio signals... radio frequency usually refer to ascillation inside the circuit or electromagnetic rays... its a high freuency vacillating (AC) that move straight from aluminium conductor and then it will be radite on air by anthenna...how does it work??? ermmm..an anthenna change the signal cable to wireless signal and vice versa... when signal AC high frequency radiate on the air, it will form a radiowave. this radiowave will far from its source (anthenna) in one straight line.. to make it clear imagine u throw a stone in a calm pool..then it would form a ripple which the ripple come from one direction..the middle of the ripple is anthenna and the direction of the ripple form is the radiowave..now u can see it clear??hope so...huhuhuu..=)

 i think i want to stop here..then i will continue our topic soon..next topic is CELLUARPHONE....dont miss it ok!!! HAPPY SUNDAY EVERYBODY!! XD





Friday 11 May 2012

unBOUnded MEdiA~~

hallo guys!!! it such a gud day of weekend right??HAPPY SATURDAY~~ XD Actually in this post i have much more thing to write about but hhhmmmmm we will see it..hehehehe...ok back to our topics about UNBOUNDED MEDIA.. do u know anything about it?? do u know the actual work this media work for?? im not really sure bout all of that before but by guided of my lect DR DAYANG, my eyes can see it clearly. she show me what had happen actually towards the data that we all send to our family, friend and teachers.its happen everyday in our life but we did not discover bout it..know lets learn bout it!! YEAHH!! XD (so happy in the early morning..(=.="))

UNBONDED MEDIA???? is a media which transport electromagnetic wave via air (vacumm) or water so enybody can receive it by a capable device.. got it???for example the ocean, atmosphere and space.. got it?? hope so...=) This media signal transmit in one direction through anthenna located at a high place such as tower and hills. the taller the anthenna, then longer the sight distance... There are 2 types of anthenna which is.....


HORN ANTHENNA...deflect outward in a series of narrow parallel beam...


PARABOLIC DISH... work like a funnel...

next is a SATELLITE... it has a same principle as terestrial microwave.. means transmit data through air..satellite has a high quality and same speed as earth.. let me show u how satellite looks a like..


this is one of the satellite at outer space..hhmmm..so fantastics..1 of human made that make me amaze all the time...=)

there so much more to write about and share but i think maybe next time...dunno why im feel uncomfortable about myself..so see u later bebehh!! XD