tcp-ip: cara kerja state TIME_WAIT
2013-01-31 · #System & Infra
serverframework.com menulis artikel menarik tentang bagaimana state TIME_WAIT sebenarnya bekerja. Tautannya:
my other side: setyadi.com
BB10 : 10 Hopes
Parmy Olson, Forbes Staff
I cover agitators and innovators in mobile.
Screenshot of an app page being swiped to the right to "peek" at notifications in BlackBerry Hub.
It's been a tough couple of years for Research in Motion. The BlackBerry maker still has a faithful following of physical-keyboard loving users, butApple, Samsung and cheaper smartphone makers from Asia have smashed RIM's market share. Its stock has fallen almost 90% in the last five years; last quarter it posted another weak set of financial results. Some say BlackBerry 10, the new phone RIM will launch on Jan. 30th, could be a make-or-break device.
So what's it like? RIM gave Forbes a demo of the phone's software at CES 2013, unveiling some impressive features and factoids. Here are 10 of them, with a video of the demo below.
1) First a crucial factoid:carriers apparently like it. So far 150 of them from around the world are testing BlackBerry 10 in their labs, according to CMO Frank Boulben, which means they'll almost certainly carry the phone. He expects 200 carriers to offer BB 10 by the summer of 2013.
2) The phone is launching with more than 70,000 available apps, along with new features to BlackBerry Messenger that RIM will disclose at launch.
3) The phone takes away a physical "home" buttons — a bit like Nokia's Lumia phones. It relies on lots of swiping gestures and shortcuts for one-handed use by on-the-go business types.
4) The mobile platform, based software by QNX, allows users to have two personas on the device– one for work and one for private life, with separate background images and a password that can stop kids from accidentally calling someone's boss. Users can swap between the two with a single gesture, and decide what content is deemed personal and accessible, or private and professional on the same device.
5) A new feature called BlackBerry Hub. This is a neat amalgamation of all notifications that users access by swiping in an "L" shape, up and to the left. When writing an email and a new one comes in, users can also swipe slightly to "peek" at the content, before continuing with their email. No need to press a button or delete any draft of the email.
6) BlackBerry Hub's integration with Facebook, Twitter, Foursquare and LinkedIn — with potential for other developers to allow their apps to integrate with the Hub too. Users don't have to go into any of these applications to update their profiles or comment on these networks, but do it all in the Hub.
7) Quick context and aggregation. BlackBerry has created an apparently seamless system that allows you to get relevant information on people in your calendar. Swipe down to see the next appointment, then tap to see previous meetings you've had with the person, or what they last said to you in an email, or what a Google search on them brings up, or their LinkedIn profile — all within a couple of windows and without opening a browser. "It follows your train of thought," says Boulben, who described this experience as "BlackBerry Flow."
8) A keyboard that learns. This applies to the touch-screen version of BlackBerry 10, since RIM is bringing out a second BB 10 device with a physical keyboard. The application scans every email or instant message you've sent and builds an algorithm to better predict what words you'll type — rumor has it RIM partnered with A.I. startup SwiftKey on this. Predicted words hover on the "frets" between the key rows, and you select them by flicking up with your thumb (see video below). Swipe down on the keyboard to get punctuation symbols; swipe backwards across the keyboard to erase a word. If you tend to type between the O and P, the keyboard will learn this and shift the touch actuator to lie between the two keys.
9) Language. Start typing the word "je" and the BlackBerry 10 keyboard automatically suggests French words. "There is nothing more frustrating than writing in one language and being corrected in another," says Boulben, who is French.
10.) A few other things we don't know about. Boulben said RIM would unveil a couple of extra features at its Jan. 30 announcement, and the handset he showed me was not the finished product.
Overall, RIM is eagerly promoting BlackBerry 10 — it's not keeping the details about it under wraps like Apple. In fact, Boulben has been in 32 countries in the last four months to promote the hell out of this phone. And for good reason.
By summer 2013 we should know if any of these new features will help RIM stay in the game.
Evina PLN
2013-01-09 · #Bisnis #Indonesia #Kliping
Bidik Pembeli Wanita, PLN Jual 2.000 Mobil Listrik Bermerek Evina
"Saya harapkan bisa produksi 1.000-2.000 unit untuk tahun ini. Namanya, Evina, itu Pak Nur (Nur Pamudji-Dirut PLN) yang namain, kan agak perempuan, jadi bisa dipakai para wanita," ujar Dasep ketika ditemui di Kantor Kemenko Perekonomian, Jalan Lapangan Banteng, Jakarta, Rabu (9/1/2013).
Menurut Dasep, sebenarnya pasar utama dari produksi perdana mobil listrik ini adalah instansi pemerintah. "Ya selama ini kan mereka menyewa mobil untuk dinas, jadi bisa beli mobil ini," ujarnya
Saat ini harga 1 unit mobil listrik tersebut di bawah Rp 200 juta. Diharapkan, ke depannya pemerintah bisa memberikan insentif sehingga menekan harga mobil tersebut.
"Di Amerika dan Eropa sudah dikasih subsidi sekitar 70-30 juta," jelasnya.
Selain insentif produksi, pemerintah juga diharapkan dapat memberikan subsidi untuk listrik atau energi mobil ini. Dasep menjamin jumlah subsidi yang diberikan tersebut tidak akan sebesar subsidi untuk BBM.
"Mobil ini 4 jam untuk 135 km. Misalkan Jakarta Bogor bolak balik bisa 120 km atau sekitar 12 liter, beli Pertamax jadi Rp 120 ribu, kalau listrik 8 km/KwH tandanya sekitar Rp 15 ribu. Jadi nanti kita buat meteran khusus di rumah untuk mobil listrik supaya bisa disubsidi listrik untuk mobilnya," papar Dasep.
Dasep menyatakan, saat ini pihaknya tengah menunggu uji tim ahli untuk mendapatkan Nomor Induk Kendaraan (NIK). Yang jelas, lanjutnya, keamanan mobil ini sudah terjamin.
"Bulan April ini diharapkan selesai pengujiannya. Tingkat safety terujilah, tidak bakal kesetrum walaupun banjir. Samalah kekuatannya sama mobil lain, kalau tenggelam banjir ya pasti mati, tapi setengah roda bisalah," ujarnya.
Nantinya, tambah Dasep, konten dari mobil ini diharapkan bisa dari lokal. Pasalnya, saat ini, masih 50 persen dari lokal. Kemudian, kapasitas mobil ini bisa diperbesar.
"Saya usahakan semua lokal, baterai, onderdil, dan lain-lain. Nanti juga ada passenger car, Jakarta-Bandung bolak balik tanpa charger," pungkasnya.
(nia/dnl)