The document discusses the OSI model and the roles of different networking layers. It describes how data moves between layers with encapsulation and de-encapsulation. It also provides examples of protocols that operate at each layer like TCP at the transport layer and Ethernet at the data link layer.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms for those who already suffer from conditions like anxiety and depression.
This document summarizes key findings from Distimo's report on app store growth and trends in 2010. Some of the major findings include:
- The Apple App Store grew the most in terms of total apps, reaching almost 300,000, while Android grew the fastest proportionally at 6 times the previous year's total.
- Free apps attracted high download volumes, encouraging developers to explore monetization methods beyond paid apps.
- In-app purchases generated over half the revenue for top free iPhone apps and over a third for iPad apps by December 2010.
- There was a decline in the average price of popular paid apps across several app stores.
- Categories like business and entertainment apps saw
The document discusses the OSI model and the roles of different networking layers. It describes how data moves between layers with encapsulation and de-encapsulation. It also provides examples of protocols that operate at each layer like TCP at the transport layer and Ethernet at the data link layer.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms for those who already suffer from conditions like anxiety and depression.
This document summarizes key findings from Distimo's report on app store growth and trends in 2010. Some of the major findings include:
- The Apple App Store grew the most in terms of total apps, reaching almost 300,000, while Android grew the fastest proportionally at 6 times the previous year's total.
- Free apps attracted high download volumes, encouraging developers to explore monetization methods beyond paid apps.
- In-app purchases generated over half the revenue for top free iPhone apps and over a third for iPad apps by December 2010.
- There was a decline in the average price of popular paid apps across several app stores.
- Categories like business and entertainment apps saw
Evolution of Amazon's home page on Black Friday 2001 - 2011Andrian Georgiev
The document analyzes changes to Amazon's homepage between 2001-2011 around Black Friday through archived snapshots from the Wayback Machine. It found that as Kindle gained popularity starting in 2007, promotions for electronics and digital goods increased on the homepage, while other product categories declined. References to other retailers also disappeared from the homepage over time as Amazon focused more on promoting its own products and digital services like Kindle leading up to Black Friday each year.
Fixed broadband penetration is low in Bulgaria despite recent increases. Alternative operators develop fiber networks while illegal cable deployments and unauthorized access to incumbent infrastructure remain issues. The fixed market has shrunk due to mobile substitution and VoIP while bundling of services has increased competition. Regulators aim to improve broadband access through infrastructure sharing but face challenges from permitting delays and inconsistent laws.
The document analyzes download data from various app stores, including the Google Android Market. It finds that in the Android Market, 20% of free apps and 80% of paid apps have been downloaded less than 100 times worldwide. Only two paid Android apps have over 500,000 downloads, while six iPhone apps reach that level in the US alone in two months. The refresh rate of top charts is also higher in the iPhone App Store, with 94 distinct top 10 apps in a month compared to 26 in Android Market.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
- 28% of Bulgarian mobile users surveyed have used mobile apps, installing an average of 8.5 apps each. The most popular app categories are games, social networks, and maps/navigation.
- Only 13% have paid for apps, with most downloading free apps from official app stores. Major app stores are Google Play and Apple App Store.
- Top barriers to mobile internet use are concerns about costs, small screen sizes, and perceiving internet access as unnecessary. Many want internet optimization through larger screens and free WiFi access.
- The study examined mobile internet and app usage patterns in Bulgaria through an online survey of 744 respondents. It provides details on device ownership, internet access plans, app usage behaviors
Evolution of Amazon's home page on Black Friday 2001 - 2011Andrian Georgiev
The document analyzes changes to Amazon's homepage between 2001-2011 around Black Friday through archived snapshots from the Wayback Machine. It found that as Kindle gained popularity starting in 2007, promotions for electronics and digital goods increased on the homepage, while other product categories declined. References to other retailers also disappeared from the homepage over time as Amazon focused more on promoting its own products and digital services like Kindle leading up to Black Friday each year.
Fixed broadband penetration is low in Bulgaria despite recent increases. Alternative operators develop fiber networks while illegal cable deployments and unauthorized access to incumbent infrastructure remain issues. The fixed market has shrunk due to mobile substitution and VoIP while bundling of services has increased competition. Regulators aim to improve broadband access through infrastructure sharing but face challenges from permitting delays and inconsistent laws.
The document analyzes download data from various app stores, including the Google Android Market. It finds that in the Android Market, 20% of free apps and 80% of paid apps have been downloaded less than 100 times worldwide. Only two paid Android apps have over 500,000 downloads, while six iPhone apps reach that level in the US alone in two months. The refresh rate of top charts is also higher in the iPhone App Store, with 94 distinct top 10 apps in a month compared to 26 in Android Market.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
- 28% of Bulgarian mobile users surveyed have used mobile apps, installing an average of 8.5 apps each. The most popular app categories are games, social networks, and maps/navigation.
- Only 13% have paid for apps, with most downloading free apps from official app stores. Major app stores are Google Play and Apple App Store.
- Top barriers to mobile internet use are concerns about costs, small screen sizes, and perceiving internet access as unnecessary. Many want internet optimization through larger screens and free WiFi access.
- The study examined mobile internet and app usage patterns in Bulgaria through an online survey of 744 respondents. It provides details on device ownership, internet access plans, app usage behaviors
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