Showing posts with label komputer. Show all posts
Showing posts with label komputer. Show all posts

Tuesday

5 Important applications for Computers and Smartphones

There are millions of applications used to support day-to-day activities. But sometimes, there is a confusion to choose the right application and find useful.

Reporting from Techradar, Monday (25/06/2012) This site has collected an average application is considered to be useful every day, either on computer or smartphone. These five applications are:

1. Picasa (PC and Mac): Picasa is considered as one of the required application.
The software automatically organizes images found on the face in a photo album and to tag photos with a good degree of accuracy.

Even with a high degree of accuracy, Picasa can correctly identify the faces in the photographs was 30 years old.

2. Dropbox (PC, Mac, IOS, Android, and BlackBerry): This application is very useful
when you save the file on your home computer while you are out to work. Dropbox is very easy to use to share files that are too large to email, such as music albums.

But the functionality Dropbox does not end with that function. By installing this software, you can create a folder and fill it with files and folders you want to share.

The service also has an online synchronization, so you can access it from anywhere with an internet connection.

3. Chrome applications (PC and Mac): Chrome is not just for browsing, but also
have the store features a full application that is packaged to download add-ons. Google Chrome is very interested in promoting as one of the very program you want to download.

So you can find games and other productivity applications, such as Listhings. The good news from the app store, most of which are free to use the application.

4. Evernote (IOS, Android, and WP7): Work that requires daily prduktif
plan and structure. Evernote is a useful part of the software that works like a digital notepad, which not only "capture" of words but also images and sound.

5. Google Docs in the smartphone (IOS, Android, and WP7): This application is useful when
You are in an important meeting and would like mengibah important documents. Although there are many applications such as Mirosoft Office, but Google Docs is considered easy to use.

Keep in mind, you should be online if you want to save and synchronize documents. Still, it can open and edit documents that already exist in the offline position. To use this free application, it takes a Google account.

Monday

Game Paling Menyeramkan

Game dapat memicu beragam reaksi dari para pemainnya. Merasa bangga ketika berhasil mempertahankan benteng bersama rekan atau mungkin terpacu adrenalinnya ketika balapan dengan kecepatan tinggi. Namun, tak ada yang mampu memancing emosi sehebat game horor.
Pernahkan Anda mengalami bulu kuduk Anda merinding ketika memainkan sebuah game? Atau mungkin merasa ada yang bergerak di belakang Anda? Semua itu dapat terjadi ketika memainkan game horor.
Berikut beberapa game paling mengerikan yang pastinya mampu menantang keberanian Anda.

1. Resident Evil (1996)
Bila Anda berpikir film Resident Evil yang dibintangi Milla Jovovich sudah mengerikan, jangan sampai Anda memainkan game ini. Game yang disebut survival horror ini mampu membuat pemainnya selalu waspada.
Ketika Anda merasa berjalan di lorong yang aman, seekor anjing zombie melompat masuk melalui kaca dan menerkam Anda! Banyak gamer yang mengaku spontan melempar controller PlayStation mereka ketika anjing itu muncul.

2. F.E.A.R (2005)
Pada awalnya game ini terlihat seperti game action shooter biasa. Musuh muncul dan peluru beterbangan. Namun, secara tidak disangka terlihat bayangan berkelebat melewati lorong di depan Anda.
Ketika Anda tiba di sana, ternyata tidak ada siapapun. Ketika Anda menengok ke belakang, seorang anak perempuan berlumuran darah menerkam Anda! Inilah horor psikologis yang dimiliki game ini. Sepanjang permainan Anda akan terus dihantui oleh ”penampakan” yang mencekam.

3. Silent Hill (1999)
Film Silent Hill yang pernah digarap oleh Hoywood tidak bisa dibandingkan mengerikannya game ini. Ketika Anda berada di tengah kota mati yang diliputi kabut tebal dan satu-satunya pertanda ada musuh di dekat Anda adalah suara distorsi radio, apakah Anda akan tenang? Terus terang, suara itu justru membuat keadaan semakin mencekam! Belum lagi ditambah dengan suara sirene yang mengubah kota menjadi penuh darah!

4. Fatal Frame II: Crimson Butterfly (2003)
Bayangkan diri Anda berada di desa terpencil yang tidak tersentuh teknologi. Tidak ada kendaraan, jalanan aspal, bahkan listrik. Kemudian, desa tersebut terkena kutukan yang membuat arwah gentayangan. Itulah yang terjadi di Fatal Frame II.

Anda akan melewati malam penuh kengerian melalui mata seorang gadis kecil bernama Mio. Ia tidak bisa membunuh hantu dengan menggunakan senjata apapun kecuali sebuah kamera tua. Ya, kamera tua. Mio harus memotret hantu untuk mengusirnya. Terdengar lucu? Anda tidak akan berpikir begitu bila memainkannya langsung.

5. Amnesia: The Dark Descent (2010)
Menurut Farel's, inilah game yang paling mengerikan. Game horor diatas semuanya memiliki satu kesamaan – musuhnya dapat diserang dengan senjata. Akan tetapi, tidak demikian dengan Amnesia. Game ini tidak memberikan Anda satu senjata pun untuk mempertahankan diri! Anda hanya memiliki satu lentera yang menerangi daerah sekitar saja. Lebih mengerikannya lagi, Anda selalu dikejar oleh sesuatu yang haus darah.

Kegelapan, ketidakberdayaan, teror, dan suara yang mencekam akan terus mengikuti perjalanan Anda. Banyak gamer yang menyerah di tengah jalan ketika memainkannya akibat tidak tahan dengan kengerian yang terus mencekam.

Sunday

"Developer" Indonesia Welcomes NASA Challenge

U.S. space agency, NASA, officially opened the International Space Apps Challenge competition in Indonesia.

With this, NASA challenged the application developer (developer) Indonesia to create an application that has to do with outer space.

The event was opened by the Deputy Ambassador to the U.S. Embassy to Indonesia, Ted Osius, in america @ Pacific Place Mall Jakarta, Saturday (04/21/2012). The hope, the application that created NASA and later may help scientists solve global problems.

Although applications from Indonesia related to outer space is relatively rare, but NASA believes Indonesia developer can create useful applications.

"I see the technology community in Jakarta is quite strong, especially when the company is rapidly emerging application developers," said Ali Llewellyn, Open Governent Kompas.com Analyst in an interview with NASA.

There are about 30 application developers who join the competition. Began Saturday afternoon until Sunday (21 and 22 April), they will compile the code (coding) for applications in the office DailySocial technology blog, West Jakarta.

The developers claim, will make an application for computer equipment, mobile or web-based.

They will present an application made before the jury. U.S. Embassy to Indonesia and DailySocial as the organizer, would provide an opportunity for developers to revise their applications in order to really be ready to use.

According to Erna Sri Adiningsih, The Center for Aerospace Information Studies and Institute of Aeronautics and Space Agency (LAPAN), this event will add to the network LAPAN of outer space activities conducted younger generation.

"As long as it still relies on software LAPAN from abroad for the development of space science. Who knows with this show will show up the young seedlings are interested in developing software space," please Erna.

Monday

The Future of Cloud Computing in Mobile phones

Mobile data access via smartphones grew rapidly in Indonesia. The condition is believed to be new business opportunities for the development of value added services (VAS) in mobile phone technology by relying on cloud computing.

This was stated by Indonesian initiator Cloud Forum (ICF) True Prasetya. Of various statistics put forward by a number of research bodies, potential cloud on the mobile device will grow large.

"Mobile cloud should be adopted to develop the VAS in the future. Therefore, access to internet, particularly social media via mobile devices is huge," he told detikINET, Monday (04/09/2012).

Citing research firm Gartner said in 2015 that later connections in the world of mobile data services is expected to grow to 7.4 billion stable connection with a revenue of USD 552 billion.

Gartner also predicted that by 2014 there will be more than 70 billion mobile application download from the app store (app store) every year.

Other institutions, Informa Telecoms & Media said the value of data services and VAS in the world is predicted to reach USD 340 billion.

"Indonesia is one of 15 states that encourage pertumubuhan and VAS data services in the world by 36% until 2014," he said.

While Frost & Sullivan revealed in 2011 and there are 67 million mobile users who connect to the data, and could be 167 million in 2016 in Indonesia.

A total of 109 million is projected will be connected using a smartphone, while 22 million use the tablet.

In 2011, the data connection is initiated by a 3G-based mobile phone by 15% to 20%, and will increase to 25% to 30% in 2012. 2.5 G mobile phone market is still dominated by 62%, while 2G phones continue to show a decline.

In 2015 Frost & Sullivan predicted by the value of digital content businesses reach USD 780 million while the ecosystem enabler of about USD 378 million.

True to explain, the condition was an opportunity for the development of Mobile VAS that had been mistakenly considered to Premium SMS.

"VAS in the era of data instead of SMS Premium. However, developing a VAS in the era of data that there are some obstacles," he explained.

The obstacles are varied operating platform owned devices, memory and storage limitations of the device, and a wide variety of display device capabilities, the ability to support mobile browser, type the availability to connect to the server, and the target market of VAS applications or content.

He suggested, in order to overcome these obstacles mobile cloud should be adopted to develop the VAS in the future.

Mobile Apps cloud is believed to give Native Client on the Device, web-based applications access through the device, and faster Internet access via mobile.

According to him, cloud mobile technology can simplify all of the data from mobile devices to be transferred to the cloud. Next, make sure the same platform, and integrate with the internet and social media to increase market acceptance.

"If it easier to run mobile cloud service and content developers in making VAS products. Whether it's platform, content, and infrastructure. Development VAS will also be faster, cheaper, and the edges are more productive because of increased turnover," he said.

On the end user, the mobile cloud existing practice when referring to Facebook, Dropbox, and others. However, for the platform does not exist because operators have not moved to open Application Programming Interface (API).

"Because it's open API to open access to the back office operator sepertibilling, subs authentication, charging, customer care, and more. Operators still fear security problems security and fraud management," he concluded.

Wednesday

5 World's Most Expensive Gadgets

Many gadgets are made luxury version with exorbitant prices. Hardly makes sense that only the wealthy who could afford to have it.

Most of these fancy gadgets are designed by the designers. He was covered with jewels or rare items that make it so exclusive and exceptional high-priced.

Here are 5 gadgets that get the most expensive category in the world, as quoted from Industry Leaders Magazine:

Chopard hours - USD 25 Million

Hard to believe, at the name of the 201-carat Chopard on sale-$ 25 million or in the range of Rp 229 billion. No doubt, this is the hour at the most expensive in the world.

What makes the exorbitant price of diamond jewelry is so much embedded as a decoration at this hour. On it there are three rather large diamond-shaped heart. And around the body is still a lot of smaller diamonds.

iPad 2-Gold History - USD 8.1 Million

Designed by British designer, Stuart Hughes, iPad 2 is clearly not the same as regular appearances with iPad 2 sold in the market. The price alone reached $ 8.1 million or in the range of USD 74 billion.

The back of the iPad 2 is coated with 24 carat gold weighing 2 pounds. Then the front frame made of Ammolite, 75 million year old rocks. To make it more exclusive, a bone Tyranosaurus Rex 65 million years old are also embedded in the stone. Coupled with a 8.5 carat diamond attach in the home.

Diamond Rose iPhone4 - USD 8 Million
4 that the iPhone is sold at a price of USD 8 million or around Rp 71 billion. Again the designer is Stuart Hughes who is specialized in designing gadget looks very luxurious.

Phone 4 is sprinkled with more than 500 grains of diamond. Then there are two rather large diamond in the home, both are worth USD 6.4 million. While the Apple logo on the back of the phone is decorated with a 53 point diamond.

PrestigeHD Supreme Rose-USD 2.3 Million
PrestigeHD Supreme Rose Edition is a high definition television at a price out of the ordinary. With a tag of USD 2.3 million or in the range of USD 21 billion, only the very wealthy who can afford or intend to have it.

Television is also designed Stuart Hughes is the outer frame is made with 28 kilograms of gold. There is also coated with diamond. While the frame is made with alligator leather.

Laptop Luvaglio $ 1 Million
This Luvaglio laptop portable computer seems to be the most expensive in the world today. It costs about $ 1 million or if dirupiahkan equivalent to Rp 9 billion.

Laptop made this British company has a 17 inch wide screen. Specification is actually normal, not quite stand out compared to middle-class laptop sold today. Which makes it expensive is the laptop is made by hand and decorated with rare diamonds in the body.


source : inet.detik.com

Saturday

Corsair Vengeance K90, Real Keyboard For Real Gamers

Outside the industry memory, Corsair seems more serious work on the gamer. Call it a Vengeance K90 keyboard designed specifically for MMORPG gamers.

No doubt if many players require special software to play. For example, a mouse with a special sensitivity rate, or keyboard that has some special buttons to various functions.

Well, that's what makes computer accessories vendor in droves to spend their flagship product. One Corsair, which had previously been successfully spawned a variant of the memory, power supply, and audio devices for gamers.

Sturdy and Attractive Design

The first impression of this product is its shape look stunning. Large, eccentric color, and lots of foreign keys that makes me curious to try.

In addition it also turns the keyboard feels heavy when held. It is felt when the keyboard is removed from the packaging which is also great.

As noted, it turns out almost all the top Corsair K90 coated aluminum. Apparently this is what makes this product feels heavy but seem sturdy and look cool.

But that's just on the top only. At bottom, this product sepereti keyboard in general, is made of black plastic material with 'legs' to make it higher.

Other enhancements are included in the sales package is a buffer wrist. For linking, the user need only rotate the screw is there on both sides. Quite easily and make the keyboard more comfortable to use.

This keyboard looks even more attractive when used in indoor low light, such as gamers play in a room without a beacon.

The light blue colored backlit keyboard looks adorn almost all the keys. Brightness level can be adjusted up to 3 levels through the buttons provided.

Suitable For MMORG Game Lovers

But outside the looks are attractive, Corsair Vengeance K90 plus it has a functional value, especially for gamers lovers of massively multiplayer online game role-playing game (MMORPG).

Yes, if viewed from the features offered Vengeance K90 seemed appropriate to play the kind of game. This can be seen with the addition of 18 dedicated buttons on the left.

Function of 198 keys can be changed in accordance with the wishes of users, for example, for some key combinations are often used in MMORPG games.

In total there are 54 functions that can be embedded and stored in memory that already exists on this keyboard. Yes, Vengeance K90 does have onboard memory for this requirement.

In addition to the row of buttons, Vengeance K90 also has some additional buttons that, for the backlit lights are on the right. In total there are 3 levels of brightness that can be used.

Then the 'lock' to lock all buttons, then there scroling dio side bar to adjust the volume and several other commonly used keys for music player.

Well, with an attractive design and appearance of an eccentric, no doubt again if the product is capable of memcuri attention of gamers.

Features that offer equally great, a row of buttons provided enough help when gamers are being fought in cyberspace. Unfortunately all keyboard functions can not be directly used.

In the sales package, Corsair does not include installation CD. So users must download some additional software on the sites listed in the manual Corsair K90.

In addition, although it was soft but almost all the keys on the Corsair K90 quite noisy when in use. Interested? Gamers who want to have these products should make up for it with a range of Rp 1,225,000.

Pros:
+ Cool design
+ Many of the features

Disadvantages:
- Does not include software
- Some of the noisy


source : inet.detik.com

Sunday

Good news: Mass Effect 3 It can be sampled

Finally, gamers can already taste the Mass-effect 3. Although still in demo form, but from here the player can feel like what the embryo bakalnya later.

In Mass Effect 3 gamers will be back playing with the primary mission Shepard took over the Earth from alien colonies called The Reaper.

Quoted from Neoseeker, Wednesday (02/15/2012), the current demo Mass Effect 3 for the computer is worth trying and can be downloaded via the site owned by Electronic Arts. While the version of the PlayStation 3 and Xbox 360 is scheduled to follow soon.

Does not vary much with the original version to be released later in March 2012, in this demo players can play and convert Shepard looks at will.

But to play the demo size is 2.1 GB, it's good gamer attention to computer specs are needed, among others:

Minimum Spec:

OS - Windows XP SP3/Vista SP1, Win 7
CPU - 1.8 GHz Intel Core 2 Duo (equivalent AMD CPU)
RAM - 1 GB for XP / 2GB RAM for Vista / Win 7
Disc Drive - 1x speed
Hard Drive - 2.5 GB of free space
Video - 256 MB * ​​(with Pixel Shader 3.0 support)
* Supported chipsets: NVIDIA 7900 or better; ATI X1800 or better. Please note That NVIDIA GeForce 9300, 8500, 8400, and 8300 are below minimum system requirements, as are AMD / ATI Radeon HD3200, HD3300, and HD4350. Updates to your video and sound card drivers may be required.
Sound - DirectX 9.0c compatible
DirectX - DirectX 9.0c August 2009 (included)


Recommended Spec:

OS - Windows XP SP3/Vista SP1, Win 7
CPU - 2.4 GHz Intel Core 2 Duo (equivalent AMD CPU)
RAM - 2 GB for XP / 4GB RAM for Vista / Win 7
Disc Drive - 1x speed
Hard Drive - 2.5 GB of free space
Video - AMD / ATI Radeon HD 4850 512 MB ​​or Greater, NVidia GeForce 9800 GT 512 MB or Greater
Sound - DirectX 9.0c compatible

How my friend? when to try?


source : inet.detik.com

Saturday

DorkBot.Bx and Characteristics of the Infected PC

As has become a schedule, beginning of each year and the end of the year, the makers of malware is usually 'release newest product' form of malware variants that have new ways of infecting computers. It also occurs at the end of this year where a new malware being intensively spread this month.

This malware is detected as Trojan.Generic.KD.440xxx or W32.Dorkbot.Bx. If the previous ones spread BitCoinMiner trojans and trojan variant Kolab, this variant is the 'new incarnation' of BitCoinMiner trojan trojan that uses methods Kolab. This is a group of trojan / backdoor designed to steal information or data of computer users, especially matters related to personal financial data, which is associated with internet banking. Just like trojans BitCoinMiner, DorkBot.Bx variant also has the ability to record information / data relating to personal data such as usernames, passwords, credit cards, and others. Not only that, the computer that is infected with a trojan was used as a tool for solving participated blocks BitCoin cryptography using BitCoin account of the owner of the trojan.
That was a bit of information about DorkBot.Bx, now we need to know how the characteristics of the computer has been infected by this malware. Here are some characteristics of the infected computer DorkBot.Bx:

1. CPU 100%

DorkBot.Bx will make the CPU becomes sluggish. Shows the percentage of CPU usage 100%. This is because the activities of trojans that attempt to break the cryptographic block BitCoin and actively trying to make sending data.

2. Wasteful of bandwidth

Not only is making a slow computer where the CPU usage to 100%, another thing to note is the activity of Internet bandwidth. This is because the result of trojans DorkBot.Bx makes your bandwidth to be extravagant.

3. Hiding a folder on a USB drive or removable disk

Not different from its predecessor, BitCoinMiner trojan, trojan DorkBot.Bx was also doing the same thing is to hide the folders on the USB or removable disk and create a shortcut similar false name of the folder. It seems the trend shortcut also inspire trojan DorkBot.Bx

4. Connecting to Server BitCoin

Trojan DorkBot.Bx attempt to connect to Server BitCoin to perform cryptographic delivery BitCoin blocks malware authors use the account on BitCoin. This is advantageous because the manufacturer can quickly and easily perform cryptographic blocks BitCoin through the help of computers already infected.

5. Connect to IRC / Remote Server

Trojan DorkBot.Bx also attempt to connect to IRC / Remote Server for the delivery of computer users BitCoin information required by the malware authors.

6. Downloading files malware

In order to simplify the action, trojans DorkBot.Bx also to download some specific malware files from IRC / Remote Server in order to stay updated and are not easily recognizable by the antivirus. Files of different malware is what sometimes makes it difficult to detect the presence of antivirus trojan DorkBot.Bx.

7. Downloading files Certificate Authority (CA)

Basically, the Certificate Authority (CA) is used in online payment transactions such as banks, PayPal, and thousands of other sites that use the SSL protocol. By downloading the file CA, malware makers want to ensure that victims of infected computers already have updated so that CAs can transact safely BitCoin.

8. Transfer data have been obtained

The main objective of the trojan DorkBot.Bx is getting information from the user's computer that is infected.

9. Open various ports

DorkBot.Bx Trojan also opens various ports on the victim's computer to be able to easily connect to the IRC / Remote Server, and perform various actions with impunity.

10. Adopting Facebook Chat

This method is probably the most common users. DorkBot.Bx provide a URL link that has been converted into a short, so users will be easily fooled. If the link is opened, then the user will download a file using the file name and icon are quite 'sexy'.

Another characteristic is to modify the registry and create some files to infect computers. In order to directly active when the user connects the USB or removable drives, trojans DorkBot.Bx exploit security holes of Windows is Windows Icon handler that makes the shortcut from the trojan file will be active once to access the drive.

Blogger Buddy, that was a bit of information about emerging DorkBot.Bx Trojan in action lately. Hope this is useful for us. Stay alert and happy blogging.




Sources: detikinet.com

Apa itu CAPTCHA

Saya sangat yakin bahwa Sobat Blogger pernah mendengar atau mungkin melihat / membaca kata “CAPTCHA “. Mungkin diantara Sobat Blogger ada yang bertanya-tanya, Apa itu CAPTCHA ?
CAPTCHA merupakan kependekan dari Automated Public Turing test to tell Computers and Humans Apart. Istilah ini diciptakan oleh Luis von Ahn, Manuel Blum, Nicholas J. Hopper, dan John Langford pada tahun 2000. CHAPTCHA merupakan jenis respon tes yang digunakan dalam dunia komputasi yang bertujuan untuk memastikan bahwa user adalah human atau manusia, dan bukan robot. Prosesnya biasanya melibatkan sebuah server yang meminta user untuk menyelesaikan sebuah tes sederhana yang sudah diidentifikasi oleh server tersebut. Dalam hal ini, computer lain diasumsikan tidak mampu untuk memecahkan tes yang dimaksud, sehingga setiap user yang memasukkan solusi yang tepat diduga sebagai manusia. Jenis umum dari CAPTCHA mengharuskan user untuk mengetik huruf dan atau angka dari gambar terdistorsi yang muncul di layar.
Mungkin ada diantara sobat blogger yang bertanya-tanya, mengapa harus menggunakan CAPTCHA? Sebenarnya apa fungi CAPTCHA? Berikut ada beberapa fungsi dari CAPTCHA.
Mencegah Spam Komentar di Blog
Seperti kita ketahui bersama, ada sebagian Blogger yang suka mengirimkan komentar palsu. Ini dilakukan dengan menggunakan sebuah program. Biasanya tujuannya adalah untuk meningkatkan rangking pada mesin pencari. Ini disebut sebagai spam komentar. Disinilah peran CAPTCHA diperlukan. Dengan menggunakan CAPTCHA, manusia hanya dapat memasukkan komentar di blog. Tidak perlu untuk membuat pengguna mendaftar sebelum mereka memasuki komentar.
Melindungi Situs Pendaftaran
Beberapa perusahaan (Yahoo, Microsoft, dll) menawarkan layanan email gratis. Sampai beberapa tahun yang lalu, kebanyakan dari layanan ini menderita jenis serangan tertentu: "bot" yang akan mendaftar untuk ribuan akun email setiap menit. Solusi untuk masalah ini adalah menggunakan CAPTCHA untuk memastikan bahwa hanya manusia yang akan memperoleh akun email. Secara umum, layanan bebas harus dilindungi dengan CAPTCHA untuk mencegah penyalahgunaan oleh program otomatis.
Mencegah Serangan Kamus
Selain hal diatas, CAPTCHA juga dapat digunakan untuk mencegah terjadinya serangan kamus dalam sistem sandi. Idenya sederhana: mencegah komputer dari mampu iterate melalui seluruh ruang dari password dengan mengharuskan untuk memecahkan CAPTCHA setelah sejumlah login gagal.
Search Engine Bot.
Worms dan Spam
CAPTCHA juga menawarkan solusi yang masuk akal terhadap cacing email dan spam: ". Saya hanya akan menerima email jika saya tahu ada manusia di balik komputer lain" Beberapa perusahaan sudah memasarkan ide ini.
Setelah kita mengetahui fungsinya, sekarang kita akan membahas bagaimana aplikasi CAPTCHA ke website.
Jika website Anda membutuhkan perlindungan dari spammer, Anda dapat menggunakan CAPTCHA. Namun dalam penggunaanya, ada beberapa pedoman yang sangat disarankan, antara lain :
Aksesibilitas
CAPTCHA harus dapat diakses, CAPTCHA hanya didasarkan pada teks membaca - atau persepsi visual-tugas - mencegah robot atau mesin dari mengakses sumber daya yang dilindungi. Selain berbentuk visual, sekarang CAPTCHA juga ada yang berbentuk audio. Hal ini dilakukan untuk memudahkan bagi user tunanetra.
Security Image Gambar
Dari teks harus terdistorsi secara acak sebelum disajikan kepada user. Banyak implementasi CAPTCHA menggunakan teks terdistorsi, atau teks dengan hanya distorsi kecil. Implementasi ini rentan terhadap serangan otomatis yang sederhana.
Keamanan Script
Membangun sebuah CAPTCHA yang aman tidak mudah. Selain membuat gambar terbaca oleh komputer, sistem harus memastikan bahwa tidak ada cara mudah sekitarnya di tingkat script.
Meskipun kelihatannya aman, sebuah CAPTCHA masih mempunyai celah yang mungkin masih bisa ditembus, diantaranya :
Mengeksploitasi bug dalam pelaksanaan yang memungkinkan penyerang untuk sepenuhnya bypass CAPTCHA
Meningkatkan perangkat lunak pengenalan karakter, atau
Menggunakan murah tenaga manusia untuk proses tes.


Sobat Blogger, kita sudah membahas tentang fungsi, pedoman pemasangan, sampai celah yang mungkin bisa ditembus. Semoga coretan yang sedikit dan jelek ini bisa bermanfaat bagi kita semua. Silahkan dikoreksi, dan jangan lupa tinggalkan komentar.

sumber : kaskus

Wednesday

Versi Terbaru Opera Mini 6.5 dan Opera Mobile 11.5

Opera, salah satu perusahaan peramban web raksasa telah meluncurkan dua produk terbaru mereka dalam event bertajuk “Up North Web” 2011 di Holkenkollen, Oslo Norwegia, pada tanggal 11 Oktober 2011 kemarin. Dua produk terbaru ini adalah versi terbaru mobile browser, yaitu Opera Mini 6.5 dan Opera Mobile 11.5. Kedua browser tersebut sudah bisa didownload secara gratis. Bagi pengguna ponsel Android, bisa mendownload melalui m.opera.com, sedangkan untuk platform yang lainnya akan segera hadir dalam beberapa hari ke depan.
Sebenarnya apa sih yang membedakan dua versi ini dengan versi terdahulu? Salah satunya adalah adanya fitur data usage. Dengan adanya data usage, pengguna bisa melacak besarnya pemakaian data saat membuka suatu situs. User bisa melihat berapa besarnya data yang dihemat oleh server Opera dari halaman situs aslinya. Seperti kita ketahui bersama, urusan hemat-menghemat data adalah salah satu kelebihan yang ditawarkan oleh opera mini dan mobile. Mungkin ini tidak penting untuk Anda yang browsing di rumah, tapi ini akan sangat terasa bagi pengguna dengan kartu SIM atau buat yang bepergian ke luar negeri dan tak punya pilihan fitur roaming yang murah.
Selain adanya fitur data usage, versi terbaru ini juga mengalami beberapa perbaikan dibanding dengan versi sebelumnya. Diantaranya adalah mesin rendering Presto versi terbaru, peningkatan kemampuan jaringan, dukungan HTML5 mikro data dan juga penghematan memori untuk pemakaian JavaScript. Selain itu, untuk Opera Mobile yang terbaru sudah mendukung inline video pada Honeycomb. Khusus untuk Anda pengguna Android, versi terbaru ini akan lebih memanjakan anda. Kedua versi terbaru ini lebih terintegrasi dengan system operasi Android. User dapat mengimpor “bookmarks” dari browser bawaan Android serta membuat “shortcut” dengan hanya dengan satu langkah saja.
Bagaimana Sobat? Tertarik? Silahkan download DISINI.


Sumber : kompas

Tuesday

Selamat Datang Dart, Selamat Tinggal JavaScript...

Google akhirnya merilis sebuah bahasa pemrograman baru , yang digadang-gadang sebagai pengganti JavaScript. Program ini disebut Dart. Pengumuman peluncuran bahasa pemrograman yang baru ini dilakukan oleh software engineer Google, Lars Bak, di blog nya pada 10 Oktober 2011 kemarin. Peluncuran Dart ini nantinya akan sangat menguntungkan buat para developer web. Mengapa? Karena Dart merupakan bahasa pemrograman object oriented yang secara khusus dirancang oleh Google untuk memudahkan pekerjaan para developer web dalan membangun aplikasi yang berbasis web. Seperti saya sebutkan diatas, misi yang diusung Google untuk bahasa pemrograman yang baru ini adalah menggantikan javascript yang oleh Google dianggap kurang fleksibel untuk pemrograman web.
Struktur bahasa yang dimiliki Dart tidaklah berbeda jauh dengan javascript, oleh karena itu, diyakini para developer yang sudah terbiasa coding menggunakan javascript tidak akan asing lagi dengan Dart. Kelebihan yang dimiliki Dart adalah kode bahasanya dapat di-compile ke kode bahasa java. Dengan demikian aplikasi yang dibangun di Dart dapat dijalankan di hamper seluruh browser, tanpa terkecuali perangkat mobil yang mendukung javascript. Gimana sobat? Tertarik untuk berpindah ke Dart???

Sumber: kompas

Saturday

Berhatilah-hatilah Ketika Menggunakan Smartphone…

Mungkin benar pernyataan bahwa tiada yang sempurna di dunia ini. Semuanya pasti ada kekurangannya. Sistem ataupun teknologi terkini pun tidaklah lepas dari kekurangan, alias tidak sempurna. Demikian juga dengan teknologi yang bisa dibilang memudahkan kita di berbagai bidang ternyata juga tidak lepas dari kekurangan. Hal ini juga yang terjadi pada smartphone. Siapa yang tidak tahu smartphone? Siapa yang tidak menginginkannya? Tanpa kita sadari, teknologi yang telah memberikan kita berbagai kemudahan itu juga dapat menyebabkan penyakit atau gangguan pada penggunanya. Hal ini sering kali disebabkan orang lebih sering menundukkan kepala disaat menggunakan telepon selular, layar computer ataupun tablet. Gangguannya berupa sakit di sekitar leher atau sering disebut text neck. Hal ini disebabkan oleh peregangan leher dalam waktu yang lama yang menyebabkan kerusakan arthritis yang bersifat permanen jika tidak dirawat. Ketika kondisi sudah parah, otot-otot ini akan tertekuk. Akibatnya, ketika akan diluruskan ke posisi yang benar akan terjadi rasa yang menyakitkan. Hal ini bisa terjadi dikarenakan jaringan dan sendi pada bagian leher tidak dibangun untuk bisa menahan posisi membungkuk dalam kurun waktu yang lama. Hal ini mengakibatkan rasa nyeri jika leher terlalu banyak menahan tekanan. Hal ini bisa menyebar ke bagian tubuh yang lain, semisal kepala, lengan bahu, dan dapat juga menyebabkan nyeri pergelangan tangan.
Jika hal ini terjadi secara terus-menerus akan menyebabkan tubuh menyesuaikan dengan keadaan ini secara bertahap. Hal ini akan menyebabkan kerusakan yang semakin parah. Tim Hutchful dari British Chiropractic Association ini menyebutkan anak-anak lebih berisiko terkena gangguan itu. Hal ini disebabkan karena berat kepala mereka lebih besar dari tubuh sehingga ketika kepala membungkuk ke depan maka otot lebih banyak dipakai.
Tapi tenang saja, sobat blogger tidak perlu takut. Ada beberapa cara yang bisa dilakukan untuk menghindari hal diatas. Caranya dengan istirahat tiap 10 menit, duduk lurus ke depan dengan memegang tablet ataupun telepon lebih tinggi sehingga setingkat dengan mata. Dan tentunya jangan lupa berolahraga secara teratur dan biasakan hidup sehat serta jangan mengabaikan rasa sakit yang timbul agar penyakit bisa dicegah dari awal.

Friday

Unique 'eccentric' Windows 8

Helo all bloggers, blogging is still diligent right? Well, never tired of blogging, let's blog, let's share information, and let's share tips, thanks also to share click, hehehehehe ...

For this post I'll share a little information I know to my friends all the bloggers. Yet so long (I think you know this ...) the world's leading companies, Microsoft, launched the latest OS is Windows 7. I am not sure until now everyone was wearing them. Even so, the giant company recently has introduced the newest OS products, namely Windows 8. OS is certainly newer than Windows 7. Wow wow, who wrote a long time have not had time to try, the new has come out. President of Windows Division of Microsoft, Steven Sinofsky, Windows 8 was introduced in BUILD conference in Anaheim, California, United States, Tuesday (13/09/2011). Sinofsky said the latest version of this software as a "reimagining Windows" because it look like were really new compared to previous Windows versions.
The question now is, what's new in this software? What makes him different from its predecessor? Buddy bloggers of all, there are many new things found in Windows 8 and not in previous Windows versions. Here's a list of 10 most recent that you need to know in Windows 8:

1. Metro
With Windows 8, the era of the explorer who compiled all the folders in the form of an end. Desktop does still exist, but redesigned with a simpler design and provide direct access to the user to various applications it has. The new desktop design that is named Metro contains updated information from the start date, agenda, email, post on social networking, as well as all existing applications. Metro design is actually not new. Microsoft has introduced in Windows Phone 7 for smartphones. However, for Wiondows on PCs and tablets, is the first time.

2. Internet Explorer 10
IE 10 will allow users to search both the data on the desktop and the web through Microsoft's search engine Bing. Users can also use virtual "thumb" and the soft keyboard to perform such search activity.
Aside from being a browser, IE 10 also will play a lot at the Metro UI. User can browse the internet with a lightweight version of IE 10. Metro IE 10, so that version is called, allows users to access frequently visited sites.
Metro IE10 also have the address bar and set commands at the bottom and tabs at the top. Metro 10 also supports private IE tab if the user wants to run the InPrivate feature on the browser. "Draw Mode" will help users to draw on the screen while "Enhance magnifier" helps the user to enlarge the screen only.

3. Modification of Task Manager and Control Panel
Windows 8 also has a Task Manager that have been developed, where the application will be independently list so the user can view statistics such as CPU usage, memory and application performance.
In addition, the Control Panel in Windows 8 also has been modified. Control Panel has an interface so seinsitif with a list of categories on the left and the choice of categories on the right. Users can personalize the screen lock.

4. Refresh and Reset
Refresh function allows the user to test and compare the set up of old and new systems with the help of a new feature called Windows Assessment Console. Users also can see the consequences of the set up software to hardware performance. Refresh can be done without affecting the file.
"Reset" allows the user to restore the PC to the corporate setting. Users can remove programs that are installed but still maintaining a user account and personal files.

5. ARM Processors
In addition to supporting the x86 architecture chips from Intel and AMD, Windows 8 could also work on devices with ARM-based processor. Nvidia Tegra processors for example, Snapragon from Qualcomm, and OMAP from Texas Instruments.

6. Super fast booting
Waktru booting Window 8 super fast, almost beat the time required by the monitor to light up.
7. Windows 8 Apps Store
This feature is arguably not surprising because since the boom of his Apple Store, many parties trying to create apps similar stores. The existence of these features will add Microsoft's weapon against Apple. Windows 8 Apps Store gives incentives for developers who create applications for Microsoft's Metro. Users will be able to use the Win32 and Metro Apps to do so.

8. NFC Technology Support
NFC technology in Windows 8 has been showcased in a BUILD conference yesterday. By using business cards that support NFC, the user can retrieve a web address on business cards by using the tablet via a simple step, directing the corner of the tablet on the card and took all his notification.

9. Hyper V Virtualization Technology
Hyper V mulyiple allows developers to maintain the test environment and provides a simple mechanism to move from that environment without additional hardware costs.

10. Security Systems Since the "Boot"
Windows 8 promising since turning on computer security.

Blogger Friend of all, that was a bit of information I can share. may be useful and do not forget to leave a comment ...

Sources:
International Business Times