Rohmad Hidayat's Blog


My Notes on Mobile Technology, Python GUI, Python Web Framework, Software Development, Database, Server, Embedded System, Mini Computer

Q: What is Wireless-N (draft 802.11n)?

What Is Wireless-N?
Q: What is Wireless-N (draft 802.11n)?
A: Wireless-N draft 802.11n version 1.0A: The 802.11n standard will be the next generation of high-speed Wi-Fi, capable of delivering the range and capacity to support today’s most bandwidth-hungry applications, like streaming HD (High Definition) video, voice and music. Currently approved for 1.0 draft status by the IEEE (Institute of Electrical and Electronic Engineers) Task Group-N committee, final 802.11n specification is expected to be approved in 2008.

Q: How does Wireless-N work?
A: Wireless-N uses multiple technologies such as MIMO (Multiple Input, Multiple Output), which utilizes multiple radios to transmit and receive at the same time to maximize wireless networking performance. While MIMO itself is not a standard, it is the underlying technology behind the throughput increase in 802.11n. These multiple radios transmit multiple streams of data called “spatial streams.” The higher the number of spatial streams, the higher the throughput. Numerous streams of content can move over the same channel at the same time, multiplying the capacity of each channel. Wireless-N can further double the capacity by optionally using two 20MHz channels. With smart antenna technology, strong, weak and reflected signals are combined into one data stream for maximum range–virtually eliminating dead spots throughout your home or office.



Filed under: Computer

Parallel Processing and Multiprocessing in Python

A number of Python-related libraries exist for the programming of solutions either employing multiple CPUs or multicore CPUs in a symmetric multiprocessing (SMP) or shared memory environment, or potentially huge numbers of computers in a cluster or grid environment. This page seeks to provide references to the different libraries and solutions available.

Filed under: Python

Software E-Ticket, Solusi Ticket Anda…!!!

Akhirnya kami hadirkan produk software kami selanjutnya, yaitu Software E-Ticketing. Software ini dibuat untuk mempermudah proses pembuatan ticket dalam bentuk Digital sehingga lebih fleksibel dan mengurangi beban bisnis dalam pembuatan tiket konvensional.

Beberapa Fiturnya adalah:


1. Setting jenis tiket dan harga
2. Setting Anjungan/Permainan/stand
3. Pencetakan Tiket dengan Barcode Printer
4. Otomatisasi Proses Pengecekan saldo tiket
5. Akumulasi tiket dengan membeli voucher baru
6. Laporan Penjualan Tiket, Kunjungan, traffik pengunjung anjungan.
7. Dapat digunakan sistem Member

Filed under: Programming