PERKEMBANGAN TIK
Teknologi Informasi dan Komunikasi (TIK) sebagai bagian dari ilmu
pengetahuan dan teknologi secara umum adalah semua teknologi yang
berhubungan dengan pengambilan, pengumpulan, pengolahan, penyimpanan,
penyebaran, dan penyajian informasi. (Kementerian Negara Riset dan
Teknologi, 2006: 6).
Jika dilihat pada saat sekarang ini perkembangan teknologi informasi
terutama di Indonesia semakin berkembang. Dengan adanya teknologi
informasi dan komunikasi dapat memudahkan kita untuk belajar dan
mendapatkan informasi yang kita butuhkan dari mana saja, kapan saja, dan
dari siapa saja. Dalam dunia pendidikan perkembangan teknologi
informasi mulai dirasa mempunyai dampak yang positif karena dengan
berkembangnya teknologi informasi dunia pendidikan mulai memperlihatkan
perubahan yang cukup signifikan. Banyak hal yang dirasa berbeda dan
berubah dibandingkan dengan cara yang berkembang sebelumnya. Saat
sekarang ini jarak dan waktu bukanlah sebagai masalah yang berarti untuk
mendapatkan ilmu, berbagai aplikasi tercipta untuk memfasilitasinya.
Di Indonesia yang notabenenya sebagai negara berkembang dimana
ketersediaan infrastruktur komunikasi yang masih minim mengakibatkan
kesempatan setiap orang untuk mendapatkan informasi dan pengetahuan
menjadi terbatas. Ketersediaan infrastruktur ini sangat terasa di
daerah-daerah yang proses memperoleh informasinya masih terbatas. Hal
ini dikarenakan di Indonesia penyebaran teknologi informasi dan
komunikasi belum merata, sekarang ini hanya di kota-kota besar sajalah
yang sudah dengan mudah menikmati dan memanfaatkan fasilitas yang
tersedia. Dengan demikian perkembangan pendidikan pun menjadi terhambat
dan juga tidak merata.
Salah satu wadah yang dirasa paling
berperan dalam dunia teknologi informasi dan komunikasi di Indonesia
saat ini adalah internet. Di Indonesia terutama yang berada di kota-kota
besar sudah banyak masyarakat yang mempunyai akses internet, sehingga
pemanfaatan internet sebagai salah satu media pembelajaran dan pencarian
informasi dan pengetahuan dapat lebih maksimal walaupun akses internet
di Indonesia belum sepenuhnya dapat dirasakan semua orang.
Informasi melalui media internet, bisa menjadi salah satu kunci untuk
membuat dunia pendidikan di Indonesia mempunyai standar yang sama
dengan negara lain. Dengan menggunakan media internet, pemerintah dan
institusi pendidikan sudah mulai menerapkan pola belajar yang cukup
efektif untuk diterapkan bagi masyarakat yang memiliki kendala dengan
jarak dan waktu untuk mendapatkan informasi terutama informasi dalam
dunia pendidikan. Salah satu metode yang mulai diterapkan yaitu
pembelajaran distance learning. Metode distance learning merupakan
suatu metode alternatif dalam pemerataan kesempatan dalam bidang
pendidikan. Sistem ini diharapkan dapat mengatasi beberapa masalah yang
ditimbulkan akibat keterbatasan tenaga pengajar yang berkualitas. Metode
distance learning sangat membantu siswa atau masyarakat dalam
mempelajari hal-hal atau ilmu-ilmu baru dengan tampilan yang lebih
menarik dan mudah untuk dipahami. Dalam pengaksesan dan pemanfaatan
metode ini, peran internet sangatlah diperlukan, karena melalui internet
seseorang dapat mengirim file atau meng-upload file yang ingin dipublikasikan dan melalui internet juga seseorang dapat mengakses file yang ingin dicari. Selain metode distance learning,
masih banyak metode-metode lain yang sangat membantu dalam meningkatkan
mutu pendidikan di Indonesia, diantaranya dengan adanya modul-modul
pembelajaran gratis yang tersedia, portal pembelajaran online, dll.
Jika kita bercermin ke negara lain, perkembangan teknologi informasi
dan komunikasi di Indonesia bisa dibilang cukup tertinggal. Peran
pemerintah sangat diharapkan untuk meningkatkan pertumbuhan dan
perkembangan teknologi informasi dan komunikasi di Indonesia. Pemerintah
diharapkan dapat menyamaratakan perkembangan teknologi informasi
disemua daerah di negara ini. Pemerintah diharapkan dapat membantu
daerah-daerah yang penyampaian proses informasinya masih minim dan tidak
hanya fokus pada daerah atau kota-kota besar saja seperti yang terjadi
pada saat sekarang ini, karena pada kenyataannya peran daerah dalam
mendukung perkembangan teknologi informasi dan perkembangan pendidikan
di Indonesia sangatlah penting.
Dengan belum meratanya penyebaran teknologi informasi akan
berpengaruh terhadap proses perkembangan pendidikan. Hal ini dikarenakan
peran teknologi informasi di dunia pendidikan sangatlah penting. Dengan
adanya teknologi informasi segala macam ilmu pengetahuan dan informasi
dapat diterima dan didapatkan dengan mudah dan cepat. Dalam kehidupan
kita dimasa mendatang, sektor teknologi informasi dan komunikasi
merupakan sektor yang paling dominan. Siapa saja yang menguasai
teknologi ini, maka dia akan menjadi pemimpin dalam dunianya
Rabu, 21 Maret 2012
Modem
Dari Wikipedia bahasa Indonesia, ensiklopedia bebas
Data dari komputer yang berbentuk sinyal digital diberikan kepada modem untuk diubah menjadi sinyal analog, ketika modem menerima data dari luar berupa sinyal analog, modem mengubahnya kembali ke sinyal digital supaya dapat diproses lebih lanjut oleh komputer. Sinyal analog tersebut dapat dikirimkan melalui beberapa media telekomunikasi seperti telepon dan radio.
Setibanya di modem tujuan, sinyal analog tersebut diubah menjadi sinyal digital kembali dan dikirimkan kepada komputer. Terdapat dua jenis modem secara fisiknya, yaitu modem eksternal dan modem internal.
[sunting] Jenis-jenis modem
- Modem ISDN
- Modem GSM
- Modem analog yaitu modem yang mengubah sinyal analog menjadi sinyal digital
- Modem ADSL
- Modem teknologi ADSL (Asymetric Digital Subscribe Line) yang memungkinkan berselancar internet dan menggunakan telepon analog secara berbarengan. Caranya sangat mudah, untuk ADSL diberikan sebuah alat yang disebut sebagai Splitter atau pembagi line. Posisi Splitter ditempatkan di depan ketika line telepon masuk. Artinya anda tidak boleh mencabangkan line modem untuk ADSL dengan suara secara langsung. Alat Splitter berguna untuk menghilangkan gangguan ketika anda sedang menggunakan ADSL modem. Dengan Splitter keduanya dapat berjalan bersamaan, sehingga pengguna dapat menjawab dan menelpon seseorang dengan telepon biasa. Di sisi lain, pengguna tetap dapat terkoneksi dengan internet melalui ADSL modem.
- Modem kabel yaitu modem yang menerima data langsung dari penyedia layanan lewat TV Kabel
- Modem CDMA
Selasa, 20 Maret 2012
Seems like everybody's got a price,
I wonder how they sleep at night.
When the tale comes first,
And the truth comes second,
Just stop, for a minute and
Smile
Why is everybody so serious!
Acting so damn mysterious
You got your shades on your eyes
And your heels so high
That you can't even have a good time.
[Pre-chorus]
Everybody look to their left (yeah)
Everybody look to their right (ha)
Can you feel that (yeah)
Well pay them with love tonight...
[Chorus]
It's not about the money, money, money
We don't need your money, money, money
We just wanna make the world dance,
Forget about the Price Tag
Ain't about the (ha) Cha-Ching Cha-Ching.
Aint about the (yeah) Ba-Bling Ba-Bling
Wanna make the world dance,
Forget about the Price Tag.
[Jessie J - Verse 2]
We need to take it back in time,
When music made us all UNITE!
And it wasn't low blows and video Hoes,
Am I the only one gettin'... tired?
Why is everybody so obsessed?
Money can't buy us happiness
Can we all slow down and enjoy right now
Guarantee we'll be feelin
All right.
[Pre-chorus]
Everybody look to their left (yeah)
Everybody look to their right (ha)
lyricsalls.blogspot.com
Can you feel that (yeah)
Well pay them with love tonight...
[Chorus]
[B.o.B]
Yeah yeah
well, keep the price tag
and take the cash back
just give me six streams and a half stack
and you can keep the cars
leave me the garage
and all I..
yes all I need are keys and guitars
and guess what, in 30 seconds I'm leaving to Mars
yes we leaving across these undefeatable odds
its like this man, you can't put a price on the life
we do this for the love so we fight and sacrifice everynight
so we aint gon stumble and fall never
waiting to see, a sign of defeat uh uh
so we gon keep everyone moving their feet
so bring back the beat and everybody sing
it's not about...
[Chorus x2]
[Jessie J -Outro]
Yeah yeah
oo-oooh
forget about the price tag
[End]
I wonder how they sleep at night.
When the tale comes first,
And the truth comes second,
Just stop, for a minute and
Smile
Why is everybody so serious!
Acting so damn mysterious
You got your shades on your eyes
And your heels so high
That you can't even have a good time.
[Pre-chorus]
Everybody look to their left (yeah)
Everybody look to their right (ha)
Can you feel that (yeah)
Well pay them with love tonight...
[Chorus]
It's not about the money, money, money
We don't need your money, money, money
We just wanna make the world dance,
Forget about the Price Tag
Ain't about the (ha) Cha-Ching Cha-Ching.
Aint about the (yeah) Ba-Bling Ba-Bling
Wanna make the world dance,
Forget about the Price Tag.
[Jessie J - Verse 2]
We need to take it back in time,
When music made us all UNITE!
And it wasn't low blows and video Hoes,
Am I the only one gettin'... tired?
Why is everybody so obsessed?
Money can't buy us happiness
Can we all slow down and enjoy right now
Guarantee we'll be feelin
All right.
[Pre-chorus]
Everybody look to their left (yeah)
Everybody look to their right (ha)
lyricsalls.blogspot.com
Can you feel that (yeah)
Well pay them with love tonight...
[Chorus]
[B.o.B]
Yeah yeah
well, keep the price tag
and take the cash back
just give me six streams and a half stack
and you can keep the cars
leave me the garage
and all I..
yes all I need are keys and guitars
and guess what, in 30 seconds I'm leaving to Mars
yes we leaving across these undefeatable odds
its like this man, you can't put a price on the life
we do this for the love so we fight and sacrifice everynight
so we aint gon stumble and fall never
waiting to see, a sign of defeat uh uh
so we gon keep everyone moving their feet
so bring back the beat and everybody sing
it's not about...
[Chorus x2]
[Jessie J -Outro]
Yeah yeah
oo-oooh
forget about the price tag
[End]
COMPUTER
A monitor or display (also called screen or visual display unit) is an electronic visual display for computers. The monitor comprises the display device, circuitry, and an enclosure. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) thin panel, while older monitors use a cathode ray tube about as deep as the screen size.
Originally, computer monitors were used for data processing while television receivers were used for entertainment. From the 1980s onwards, computers (and their monitors) have been used for both data processing and entertainment, while televisions have implemented some computer functionality. The common aspect ratio of televisions, and then computer monitors, has also changed from 4:3 to 16:9 (and 16:10).
A CRT monitor.
Macro showing RGB pixel array
The first computer monitors used cathode ray tubes
(CRT). Until the early 1980s, they were known as video display
terminals and were physically attached to the computer and keyboard. The
monitors were monochrome, flickered and the image quality was poor[citation needed]. In 1981, IBM introduced the Color Graphics Adapter, which could display four colors with a resolution of 320 by 200 pixels. In 1984 IBM introduced the Enhanced Graphics Adapter which was capable of producing 16 colors and had a resolution of 640 by 350.[1]
CRT remained the standard for computer monitors through the 1990s. CRT technology remained dominant in the PC monitor market into the new millennium partly because it was cheaper to produce and offered viewing angles close to 180 degrees.[2]
TFT is a variant of liquid crystal display (LCD) which is now the dominant technology used for computer monitors.[3]
The first standalone LCD displays appeared in the mid 1990s selling for high prices. As prices declined over a period of years they became more popular, and by 1997 were competing with CRT monitors. Among the first desktop LCD computer monitors was the Ezio L66 in the mid-1990s, the Apple Studio Display in 1998, and the Apple Cinema Display in 1999. In 2003 TFT LCDs outsold CRTs for the first time, becoming the primary technology used for computer monitors.[2] The main advantages of LCDs over CRT displays are that LCDs consume less power, take up much less space, and are considerably lighter. The now common active matrix TFT-LCD technology also has less flickering than CRTs, which reduces eye strain.[4] On the other hand, CRT monitors have superior contrast, have superior response time, are able to use multiple screen resolutions natively, and there is no discernible flicker if the refresh rate is set to a sufficiently high value. LCD monitors have now very high temporal accuracy and can be used for vision research.[5]
Originally, computer monitors were used for data processing while television receivers were used for entertainment. From the 1980s onwards, computers (and their monitors) have been used for both data processing and entertainment, while televisions have implemented some computer functionality. The common aspect ratio of televisions, and then computer monitors, has also changed from 4:3 to 16:9 (and 16:10).
Contents[hide] |
[edit] Technologies
Further information: Comparison CRT, LCD, Plasma and History of display technology
Different image techniques have been used for Computer monitors.
Until the 21st century most monitors were CRT but they have been phased
out for LCD monitors.[edit] Cathode ray tube
Main article: Cathode ray tube
CRT remained the standard for computer monitors through the 1990s. CRT technology remained dominant in the PC monitor market into the new millennium partly because it was cheaper to produce and offered viewing angles close to 180 degrees.[2]
[edit] Liquid Crystal
Main article: Liquid crystal display
There are multiple technologies that have been used to implement Liquid Crystal Displays
(LCDs). Throughout the 1990s the primary use of LCD technology as
computer monitors was in laptops where the lower power consumption,
lighter weight, and smaller physical size of LCDs justified the higher
price versus a CRT. Commonly, the same laptop would be offered with an
assortment of display options at increasing price points: (active or
passive) monochrome, passive color, or active matrix color (TFT). As
volume and manufacturing capability have improved, the monochrome and
passive color technologies were dropped from most product lines.TFT is a variant of liquid crystal display (LCD) which is now the dominant technology used for computer monitors.[3]
The first standalone LCD displays appeared in the mid 1990s selling for high prices. As prices declined over a period of years they became more popular, and by 1997 were competing with CRT monitors. Among the first desktop LCD computer monitors was the Ezio L66 in the mid-1990s, the Apple Studio Display in 1998, and the Apple Cinema Display in 1999. In 2003 TFT LCDs outsold CRTs for the first time, becoming the primary technology used for computer monitors.[2] The main advantages of LCDs over CRT displays are that LCDs consume less power, take up much less space, and are considerably lighter. The now common active matrix TFT-LCD technology also has less flickering than CRTs, which reduces eye strain.[4] On the other hand, CRT monitors have superior contrast, have superior response time, are able to use multiple screen resolutions natively, and there is no discernible flicker if the refresh rate is set to a sufficiently high value. LCD monitors have now very high temporal accuracy and can be used for vision research.[5]
[edit] Organic light-emitting diode
Organic light-emitting diode (OLED) monitors provide higher contrast and better viewing angles than LCDs, and are predicted to replace them. In 2011 a 25 inch OLED monitor costs $6000[citation needed], but the prices are expected to drop.[6][edit] Performance measurements (measurements of performance)
Senin, 20 Februari 2012
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