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A C R O N Y Ms::

Security Engineering

Security engineering is concerned with the development and evolution of systems that can resist malicious attacks, which are intended to damage the system or its data or information.
Software security engineering is part of the more general field of computer security.

Software engineers should be aware of the security threats faced by systems and ways in which these threats can be neutralized.


Common Attachment Types and Extensions of different File

Common Attachment Types and Extensions (note that some of these extensions could be blocked if you try to send them via email)

Document Type Extension
Microsoft Word .doc or .docx
Microsoft Excel .xls or .xlsx
Microsoft Powerpoint .ppt or .pps
Microsoft Outlook .pst [Personal folder file
Text only .txt
Word Perfect .wp


Text only .txt
Rich text format .rtf
Portable Document format .pdf
GIF Graphics .gif
JPEG Graphics .jpg

Document Type                  Extension

Word Perfect                       .wp
Text only                             .txt
Rich text format                   .rtf
Portable Document format   .pdf
GIF Graphics                        .gif
JPEG Graphics                      .jpg
HTML Files                            .htm or .html
Self-extracting Archive          .sea
Executable Files (Windows)  .exe (only open if you know what it is)
Visual Basic Script                .vbs (only open if you know what it is)

Lightspeed and Powerplay

Lightspeed, its low-latency wireless-transmission technology, and PowerPlay, a way to charge mice while using them on a custom mat. Both solve the main complaints some gamers have around wireless mice: that they’re laggy and could lose charge at any moment.

PowerPlay is the more intriguing of the two because it’s something we’ve never seen before in the mouse arena. High-end wireless mice might give you a charging cradle, while others usually pack a cable in the box to juice back up.

SEO Analytics Tools

Raven Tools : Report on all marketing campaigns using metrics that pertain to SEO, PPC and social media.

SEM Rush : This tool gives users the ability to track keywords across both paid and organic search campaigns.

moz : This platform enables users to monitor social media, manage SEO campaigns, and more.

BrightEdge : Measure and improve the SEO of your site with this content performance tool.

MarketMuse : Allow Market-Muse to crawl your site and identify gaps in content, find prominent keywords and determine how your site stacks up against competitors.

gShift : Gauge your company’s web presence with this analysis tool, then use these insights to improve the discover ability of your brand on search and social.

SerpStat : This software conducts in-depth competitive analysis based on SEO performance through domain lookup.

Pervasive Technology and Mobile Computing

The realisation that pervasive technology can provide a direct link between data and people has crystallised into the idea of participatory sensing, which appropriates everyday mobile devices such as cellular phones to form interactive sensor networks that enable public and professional users to gather, analyse and share local knowledge.

Its potential for data collection at a high granularity in space and time, very difficult for scientists to achieve otherwise, together with its potential for citizen involvement at all layers of society, make this an extremely promising tool for monitoring and managing the environment.

Sound Pollution in Bangladesh

I think there have no proper law against this terrible sound pollution in Bangladesh. My hearing system should be damage for this heavy sound of ambulance and Police team’s vehicle.

Though sound pollution happening in many countries, But In Bangladesh, sound pollution is another one greatest issue for the environment.
Most probably, Ambulance, VIP & Police Protocol team vehicle always create so enormous sound on the road that they can go forward swiftly.
Absolutely, this is their duty. But, when an ambulance and Police vehicle fall into a traffic jam. They must try to do wait and stop their whistle of vehicle; otherwise they misconduct the sound pollution law.

Zigbee | IEEE 802.1.5 | IEEE Standard 802.15.2012

A second personal area network standardized by the IEEE is the 802.14.5 standard [IEEE 802.15 2012] known as Zigbee. While Bluetooth networks provide a “cable replacement” data rate of over a Megabit per second, Zigbee is targeted at lower powered, lower-data-rate, lower-duty-cycle applications than Bluetooth. bluetooth_street_small



For example, home temperature and light sensors, security devices, and wall mounted switches are all very simple, low-power, low-duty-cycle, low-cost devices.
Zigbee is thus well-suited for these devices. Zigbee defines channel rates of 20, 40, 100, and 250 Kbps, depending on the channel frequency.

Artificial Intelligence Concepts

One of the first games to be beaten by computer, tic-tac-toe can be used to teach artificial intelligence concepts.