bit/byte and kilo/mega/giga/tera/peta

Convention:

"b" (small B) denotes bit and "B" (capital B) denotes byte.

128 kb = 128 kilo bit

16 kB = 16 kilo byte

For some cases, "k" (small K) before "b" denotes bit and "K" (capital K) denotes byte.

128 kb = 128 kilo bit

16 Kb = 16 kilo byte

So,

1 Kilo Byte = 1 kB = 1 KB

1 Kilo Bit = 1 kb

Learning:

1 Byte = 8 Bit

1 kb (Kilo-Byte)

= 1000 bit

= 125 Byte

= 0.125 KB

 

1 mb (Mega-Bit)

= 1000 kb

= 1000 x 1000 bit

= 125,000 Byte

= 125.00 KB

= 0.125 MB

 

1 gb (Giga-Bit)

= 1000 mb

= 1000 x 1000 kb

= 1000 x1000 x1000 bit

= 125,000,000 Byte

= 125,000 KB

= 125 MB

= 0.125 GB

Citycell ZOOM Modem/ CDMA Modem in MAC Operating System

well, you should obviously be able to use your Citycell ZOOM or any CDMA Modem in MAC operating system. All you need is that your modem's driver for MAC. For that you can get details from modem manufacturer website. If you can't find any information, either contact manufacturer support or search for the driver in Google, you can also find some generic driver from MAC forums or at least information.

 

Below links might be useful in this regard,

http://homepage.mac.com/jrc/contrib/mobile_office/

http://www.engadget.com/2005/01/18/how-to-use-your-cdma-cellphone-as-a-usb-modem/

http://www.experts-exchange.com/Hardware/Networking_Hardware/Modems/Q_22552246.html

http://forum.soft32.com/mac/CDMA-modem-Mac-ftopict108846.html

BanglaLion to start WiMax operation from 1st June in Bangladesh

 

Banglalion Communications has officially announced about launching WiMax operations in Bangladesh from 1st of June 2009.

It says on the advertisement on Daily Ittefaq that the minimum speed would be 128 kbps (16.0 KB) up to several Mbps including coporate business offer.

BanglaLion will offer several tariff plans at a minimum 128 kbps speed :

1. Home User/Individual for Tk 600/Month
2. Corporate (5-10 users) for Tk 550/Month
3. Corporate (10 users above) for Tk 500/Month
4. Day User (Max 3GB) for Tk 45/Day
5. Night Package (12 AM to 9 AM =9 hrs) for Tk 300/Month

If you want to register, pls click here: http://www.banglalion.com.bd/BDLION/index.php

Contact of BanglaLion:
I got below one from my previous post,

BanglaLion Communications
House # 67, Road # 1, Block # I, Banani
Dhaka-1213, Bangladesh
Phone : (880 2) 8814059-60
Fax : (880 2) 9885647

Recently from their site,

Phone :036-99350033, 036-99350000
Email:
info@banglalion.com.bd
corporate@banglalion.com.bd
dealers@banglalion.com.bd
services@banglalion.com.bd

I am eagerly waiting to see its services.

This post has been locked for posting comments. Pls follow my new thread to continue discussion on this topic.

BTRC Chairman Major General Manzurul Alam quits

Feb 10, 2009

BTRC chairman Manzurul Alam has resigned, the telecoms minister said.

Minister Raziuddin Ahmed Razu told bdnews24.com Tuesday afternoon he had received the letter of resignation from the former major general.

Alam was given the crucial job by the military-controlled caretaker government in April, 2007.

The tough-talking former army Signals officer courted controversy through his handling of the licencing process, and many alleged he failed to follow his own guidelines in awarding lucrative licenses.

Alam, then a brigadier, also served as a director at the spy outfit DGFI in the mid-1990s.

As allegations surfaced of his "unfair dealings" about award of International Internet Gateway (IIG) and WiMAX licences, the BTRC chief was apparently asked to quit to avoid further controversy surrounding the key regulatory agency.

courtesy: bdnews24.com

What is WiMax: A Simple Approach to Understand WiMax

Figure 1 WiMAX has the potential to impact all forms of telecommunications

WiMAX has the potential to replace a number of existing telecommunications infrastructures. In a fixed wireless configuration it can replace the telephone company's copper wire networks, the cable TV's coaxial cable infrastructure while offering Internet Service Provider (ISP) services. In its mobile variant, WiMAX has the potential to replace cellular networks. How do we get there?

What is WiMAX or Worldwide Interoperability for Microwave Access? WiMAX is an Institute of Electrical and Electronics Engineers (IEEE, see http://www.ieee.org) standard designated 802.16-2004 (fixed wireless applications) and 802.16e-2005 (mobile wire-less). The industry trade group WiMAX ForumTM (http://www.wimaxforum.org ) has defined WiMAX as a "last mile" broadband wireless access (BWA) alternative to cable modem service, telephone company Digital Subscriber Line (DSL) or T1/E1 service.

Fixed WiMAX


Figure 2 Fixed WiMAX offers cost effective point to point and point to multi-point solutions

What makes WiMAX so exciting is the broad range of applications it makes possible but not limited to broadband internet access, T1/E1 substitute for businesses, voice over Internet protocol (VoIP) as telephone company substitute, Internet Protocol Television (IPTV) as cable TV substitute, backhaul for Wi-Fi hotspots and cell phone towers, mobile telephone service, mobile data TV, mobile emergency response services, wireless backhaul as substitute for fiber optic cable.

WiMAX provides fixed, portable or mobile non-line-of sight service from a base station to a subscriber station, also known as customer premise equipment (CPE). Some goals for WiMAX include a radius of service coverage of 6 miles from a WiMAX base station for point-to-multipoint, non-line-of-sight (see following pages for illustrations and definitions) service. This service should deliver approximately 40 megabits per second (Mbps) for fixed and portable access applications. That WiMAX cell site should offer enough bandwidth to support hundreds of businesses with T1 speeds and thousands of residential customers with the equivalent of DSL services from one base station.

Mobile WiMAX


Figure 3 Mobile WiMAX allows any telecommunications to go mobile

Mobile WiMAX takes the fixed wireless application a step further and enables cell phone-like applications on a much larger scale. For example, mobile WiMAX enables streaming video to be broadcast from a speeding police or other emergency vehicle at over 70 MPH. It potentially replaces cell phones and mobile data offerings from cell phone operators such as EvDo, EvDv and HSDPA. In addition to being the final leg in a quadruple play, it offers superior building penetration and improved security measures over fixed WiMAX. Mobile WiMAX will be very valuable for emerging services such as mobile TV and gaming.

WiMAX is not Wi-Fi


Figure 4 Where Wi-Fi covers an office or coffee shop, WiMAX covers a city

One of the most often heard descriptions of WiMAX in the press is that it is "Wi-Fi on steroids". In truth, it is considerably more than that. Not only does WiMAX offer exponentially greater range and throughput than Wi-Fi (technically speaking 802.11b, although new variants of 802.11 offer substantial improvements over the "b" variant of 802.11), it also offers carrier grade quality of service (QoS) and security. Wi-Fi has been notorious for its lack of security. The "b" variant of 802.11 offered no prioritization of traffic making it less than ideal for voice or video. The limited range and throughput of Wi-Fi means that a Wi-Fi service provider must deploy multiple access points in order to cover the same area and service the same number of customers as one WiMAX base station (note the differences in nomenclature). The IEEE 802.11 Working group has since approved upgrades for 802.11 security and QoS.

Converged voice and data easy as FM radio?


Figure 5 With WiMAX, converged voice and data can be as easy as FM radio

Visualize turning on an FM radio in your office. You receive information (news, weather, sports) from that service (the FM radio station) and hardware (the FM radio with attached antenna). WiMAX can be described as being somewhat similar. In place of a radio station there is a base station (radio and antenna) that transmits information (internet access, VoIP, IPTV) and the subscriber has a WiMAX CPE that receives the services. The major difference is that with WiMAX the service is two-way or interactive.



Figure 6 WiMAX indoor CPE goes near the window and attaches to the customer's network

courtesy: wimax.com

Broadband News: Broadband to one third of people of Bangladesh by 2015

Nov 30, 2008

The government hopes to provide internet facilities to 30 percent of the country's population and community-based broadband to all villages by 2015, the chief adviser's press secretary Syed Fahim Munaim said on Sunday.

The press aide was briefing reporters after a cabinet meeting which passed the "National Broadband Policy 2008".

Munaim said the Bangladesh Telecommunications Regulatory Commission, in consultation with stakeholders, had finalised the policy with 11 clauses and guidelines for broadband to flourish in the country.

"The guidelines reveal that 30 percent of the country's population will be brought under the internet by 2015. All universities, medical colleges, technical universities, research bodies, all ministries, autonomous and non-governmental organisations will have access to the net," he said.

The press secretary also said e-governance facilities would reach Upazila levels by 2012 and all villages by 2015.

"At least one national internet exchange will be set up in each divisional headquarter by 2010," he said.

Munaim said the advisory council meeting, chaired by chief adviser Fakhruddin Ahmed, also finally approved the Local Government (Union Parishad) Ordinance 2008 and the Vested Property Return (Amendment) Ordinance 2008.

On the latter, the CA's spokesman said a law was enacted in 2001 but not published by gazette resulting in lethargy in implementation.

"A gazette will be published soon in this regard."

The cabinet also approved the merger of BSD and BSRS into BDBL, a public limited company and government Finance and Budget Management Ordinance-2008, Fahim said.

The advisory council further approved the setting-up of the North East Zone Power Distribution Company Limited under the Power Development Board.

The new company with a nine-member board of directors will operate in greater Mymensingh and Sylhet regions, Munaim said.

He said the interim cabinet also approved a draft MOU between Bangladesh and Australia for cooperation on prevention of terrorism. The MOU stipulates that both countries will exchange intelligence reports, meet at policy level and provide technical and specialised training among other measures.

The council of advisers sent a draft policy on private satellite operations back to the concerned ministry for further studies and revisions, Fahim added.

All advisers—except the finance adviser—special assistants to the CA new cabinet secretary M Abul Aziz, and other relevant secretaries.

courtesy: bdnews24.com

Broadband News: BTCL to launch broadband internet by Dec, 2008

Courtesy: bdnews24.com

Nov 13, 2008
The Bangladesh Telecommunications Company Limited (BTCL) says it has decided to launch broadband internet service through outsourcing by December.

The BTCL board at a meeting presided over by chairman Muhammad Mahbubur Rahman made the decision on Thursday, the company said in a press statement.

The board also decided on the procurement policy and awarding incentives to the company's staffers.