Δευτέρα, 18 Νοεμβρίου 2013

larger mobile screens - more data. A side effects (copy title from cnn)

Source here:


PORT WASHINGTON, NEW YORK, NOVEMBER 18, 2013 – As consumers opt for smartphones with larger screens, they are increasing their usage and data consumption. According to the Connected Intelligence Smartphone Usage Report from The NPD Group, monthly Wi-Fi and cellular data consumption on smartphones with screens 4.5 inches and larger is 44 percent greater than it is on smartphones with screens under 4.5 inches, at 7.2GB and 5.0GB, respectively.
Source: The NPD Group, Inc. / Connected Intelligence /
Smartphone Usage Report, 3 months ending July 2013
Smartphone penetration continues to grow as late adopters enter the market and the number of consumers opting for larger screens is growing. According to the Connected IntelligenceConnected Home Report, in Q3 2013, 61 percent of cell phone subscribers in the US used a smartphone.  Over the past year, the availability of larger smartphones has grown from representing only 11 percent of retail models at the end of Q3 2012, to 28 percent at the end of Q3 2013. As the availability of large screen smartphones has grown, so has data usage, which increased 19 percent in the same time period.
Most of this data consumption on larger phones is coming from greater usage of social media, navigation, video, retail, and music apps. Facebook, Google Maps, YouTube, Amazon (retail), and Pandora Radio are the apps most used among consumers with larger phones.
Source: The NPD Group, Inc. / Connected Intelligence /
Smartphone Usage Report, 3 months ending July 2013
“OEMs are poised to continue increasing the product assortment and availability of smartphones with larger screen sizes in the coming years,” saidJohn Buffone, director, devices, Connected Intelligence.  “Even though today larger screens represent a smaller part of the market, their relevance is increasing as consumers look for more ways to interact with content while on-the-go.  This is a win, not only for the manufacturers, but also for the carriers as data consumption and usage will keep increasing.”
Methodology
Smartphone Usage Report Data is sourced from an on-device meter "SmartMeter" leveraging a three month rolling panel that provides the equivalent base of 4,500 smartphone users. The panel is weighted and representative of the Android and iPhone U.S. smartphone base. The data was collected between May and July 2013.
Connected Home Report:
More than 5,000 U.S. consumers, age 18 and older were surveyed in the third quarter of 2013 for the Connected Home study.

Πέμπτη, 14 Νοεμβρίου 2013

cassandra - Eventual consistence apache project -

http://cassandra.apache.org

  • Proven
    Cassandra is in use at NetflixeBayTwitter,Urban AirshipConstant ContactReddit, Cisco, OpenX, Digg, CloudKick, Ooyala, andmore companies that have large, active data sets. The largest known Cassandra cluster has over 300 TB of data in over 400 machines.
  • Fault Tolerant
    Data is automatically replicated to multiple nodes for fault-tolerance. Replication across multiple data centers is supported. Failed nodes can be replaced with no downtime.
  • You're in Control
    Choose between synchronous or asynchronous replication for each update. Highly available asynchronous operations are optimized with features like Hinted Handoffand Read Repair.
  • Elastic
    Read and write throughput both increase linearly as new machines are added, with no downtime or interruption to applications.
  • Professionally Supported
    Cassandra support contracts and services are available from third parties.