Arsip Kategori: online security

My Old Article (3): GPRS — A new technology to put you on the fast track


JAKARTA (JP): What will happen in 2004? Some politicians aren’t prepared to wait that long to see a new president rule the country. Some of us cannot wait that long to see many changes in Indonesia.

If that year ever comes, global players in the telecommunication and information technology (IT) industry will be celebrating one billion subscribers of wireless phone services. According to Hong Kong-based consultants Strategis Group, this year alone wireless phone subscribers have reached 530 million worldwide.

Anticipating the trend, Telkomsel, one of the largest mobile phone operators in Indonesia today, is planning to enhance its telecommunications technology with general packet radio services (GPRS). Through this initiative, Telkomsel will be able to offer much improved services.

Service, or as IT people would call it QoS (Quality of Service), will become a major concern for subscribers. Who would want to have “”network search”” blinking on the phone screen all the time? In its early days, GSM (Global System for Mobiles) could also be called Geser Sedikit Mati or, move a little and the phone is dead.

On the Internet and other networks, QoS is the idea that transmission rates, error rates and other characteristics can be measured, improved and, to some extent, guaranteed in advance.

With GPRS, Telkomsel is running in the fast lane. Based on GSM communication, GPRS has higher data transmission rates which allow users to take part in video conferences and interact with multimedia web sites in any part of the world. GPRS promises data rates from 56 kilobits per second (Kbps) up to 114 Kbps, and continuous connection to the Internet for mobile phone and computer users.

Today’s plain flavored Internet dial-up connection in Jakarta can reach as high as 8 Mbps (Indosat Net connection). Soon enough, users of mobile devices will enjoy the comfort of Internet in their palms at faster speeds. As the speed is gradually improving, mobile Internet keeps its magnetic charm for most of its users.

However, with the possibility of the value-added tax being raised to 12.5% in July and the prices of consumer goods climbing off the wall, apparently the mobile phone industry in Indonesia will remain stable.

More on technology

Another trivia question: what will happen if an effective, acceptable government is finally functioning in Indonesia? Everything goes well according to market demand. Politicians and economists are wearing smiles. Then we can talk about technology advancement further.

Today’s cellular systems are mainly circuit-switched, with connections always dependent on circuit availability. Like that used by Telkom’s POTS (plain old telephone system), most cell phones use a circuit-switched network, where no one else can use the physical lines involved during a call.

In contrast, the next generation of GPRS is already coming. It is called Universal Mobile Telephone System (UMTS). It offers a consistent range of services to mobile computer and phone users no matter where they are located in the world. As with any evolving technology, worldwide deployment of UMTS may take some time.

UMTS is one of the approved standards by the International Telecommunications UnionTelecommunication Standardization Sector (ITU-T). Located in Geneva, ITU-T is the main international body that develops cooperative standards for telecommunications equipment and systems.

UMTS meets with the requirement of providing transmission rates of 144 Kbps when mobile, 384 Kbps when pedestrian speeds outdoor, and 2 Mbps stationary indoors.

While it becomes a little faster at each new phase, wireless technology will mature in time. Most European countries and Japan already have the facilities to utilize UMTS, which will be in service after 2002.

Something to ponder

Once UMTS is fully implemented, it will keep people connected at all times and in all places. Phone and PDA (personal digital assistant) users can be constantly connected to the Internet as they travel and have the same set of capabilities no matter where they are.

Privacy and security on the Net is something to consider. If cell phones or PDAs stay online 24 hours a day, this could tempt hackers. With fingerprint, retinal, or voice recognition systems, security is also advancing.

Some of us would like to have time for ourselves; often disconnecting the phone while on vacation. If not, the cell phone in the pocket could be spotted thousands of miles away from where we are. This is made possible by global positioning satellites.

Owned and operated by the U.S. Department of Defense, but available for general use around the world, the global positioning system (GPS) is a constellation of 24 well-spaced satellites that orbit the Earth.

It is possible for people with ground receivers to pinpoint their geographic location. These days, GPS receivers, which can be attached to any electronic device, are becoming consumer products.

Some experts say that technology, bit by bit, chips away at our privacy. Is it possible to design a technology that could conceal personal information? Once we live in borderless space, expect the information explosion at any time. Make use of it, or make the best defense from it.

The Jakarta Post, Jakarta | Life | Sun, June 17 2001, 7:29 AM


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SeMaNTic wEb: Give Meaning To My Anonimity?

Suatu hari kita bisa meng-update blog melalui telepon selular dengan harga lebih murah dari hari ini.
Suatu hari kita akan mengakses internet di mana saja dan dalam durasi waktu lebih banyak daripada jam tidur.
Suatu hari kita bisa men-download satu file 90 menit film Nenek Grondong Siang Bolong hanya 15 menit.

Pic: Nova Spivack & Radar Network

Suatu hari itu adalah di saat Departemen Komunikasi (communication? k-myn-kshn) dan Informatika (informatics? nfr-mtks) sudah selesai bertugas sebagai leading sector of Palapa Ring dan (utamanya) opsi routing-backbone. Setelah gempa Taiwan tempo hari, proyek-proyek megadolar ini adalah langkah antisipasi arus internet macet.

Kembali ke semantic web, tak hanya sebuah mekanisme jaringan yang “bisa mengerti” secara teknis tapi juga secara manusiawi. Manusiawi? Di tengah belantara data yang kian hari kian menggunung, tak setiap orang memiliki keahlian meng-google dengan baik. Eric Schmidt (CEO dari Google) memprediksi bahwa satu hari (secepatnya):

  • aplikasi akan semakin kecil, data akan berada di satu kelompok tertentu,
  • aplikasi itu bisa dipakai di alat apa saja, PC atau telepon selular,
  • aplikasi itu sangat sangat cepat dan dapat disesuaikan (customizable),
  • aplikasi tersebut didistribusikan ibarat virus (viral distribution)
  • kita semua tak harus pergi ke toko dan membeli semua hal.

Lalu di mana manusiawinya web semantik ini? Semantik adalah cabang ilmu linguistik yang mempelajari “arti” dari setiap ungkapan (kata, kalimat, gerak tubuh, dan seterusnya). Sehingga yang terjadi dengan web masa depan (sooner than you thought!) adalah web yang mengenali identitas kita (OpenID dan ClamID) untuk memproses setiap langkah (klik). Contoh mudah adalah AdSense, tapi kemudian di web semantik semua keinginan kita (mulai penerapan password hingga kebutuhan informasi yang ingin kita baca setiap hari) akan direkam dan diproses otomatis. Setiap orang memiliki unique ID (seperti memberi nomor ke setiap kening kita) sehingga di setiap klik kita hanya mendapatkan informasi yang kita inginkan saja.

Web semantik ini secara manusiawi memudahkan langkah-langkah mencari informasi hingga bertransaksi dari meja kita ke ujung dunia manapun. Still people talk to people, machines talk to machines, masalah keamanan adalah hal krusial di sini. Anonimity? No, this is not my most favourite sin.