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PATACS Posts Announced Newsletterofthe Potomacareatechnology and Computersociety Logo Design Winner to be PATACS Posts announced Newsletterofthe PotomacAreaTechnology and ComputerSociety January 2013 www.patacs.org Page 1 Useful Bits & Pieces average read and write throughputs of about 60 and 50 Mb/s, respectively for HomePlug AV2 by Lorrin R. Garson Columnist, Potomac Area Technology and Computer devices. There are nearly 200 products available Society from a variety of manufacturers (see Using Electrical Wiring to Network http://www.homeplug.org/certified_products). In the table below are five examples of such Generally users network their computers using equipment; more information about these cable via a router or a switch or by means of products can be found in MaximumPC, 17 (12), WiFi. Pulling cables can be a chore and WiFi December 2012, pp. 46-51. doesn’t work well in some environments. Did you know you can use your home electrical wiring for Supercomputers networking using powerline adapters? This Yes, these monster machines still exist and are technology is called HomePlug. Many modern very important. What are they used for? powerline adapters are compliant with the IEEE Weather forecasting, drug design, code breaking, 1901 standard (aka HomePlug AV2), which can probabilistic analysis, nuclear weapons design, transfer data up to 500 Mb/s. An older standard, molecular dynamics simulation, petroleum HomePlug AV, can transfer data up to 200 Mb/s. exploration, aircraft design and other However, home-use equipment in practice have (Continued on page 2) Magnatune: An Alternative Music Service...............................................3 Sansa Clip Zip MP3 Player...........................................................................4 Linux Software..............................................................................................5 Making a Good Video...................................................................................7 Customizing Labels in Word 2007..............................................................9 POyNT App for iPhone, Blackberry......................................................... 10 Your Own Website......................................................................................11 IObit Releases Advanced SystemCare 6.0............................................... 12 Micro Center In Store Clinics................................................................... 14 Page 2 www.patacs.org January 2013 (Continued from page 1) additional parameters, such as processes, applications requiring vast numerical services, associated handles, associated modules, calculations. The table below illustrates the physical memory, disk activity, [disk] storage, fastest computers in recent years. network activity, TCP connections, listening ports, etc. To the right you will see a variety of The speed of these machines is difficult to real-time graphs, depending which of the five comprehend. A FLOP is a floating point operation tabs you have selected. per second (such as 3 plus 4); a PFLOP (or PetaFLOP) is 1015 FLOPS. In the mid- to late 1990s What does all this mean? Admittedly it’s a bit Cray C90 supercomputers had a processing speed complicated and the best way to use resmon is to of 8 gigaflops (109 FLOPS). It could solve a spend some time using it before you have a problem in 0.002 seconds which would take a PC problem. Playing with resmon when all is well some hours to complete. The IBM Sequoia will give you an idea of what is normal so that (running Linux) is 2,000,000 times faster than when you use it trying to diagnose a problem you these Crays! Speed is not the only important will be able to spot the abnormal. Of course the factor. Power consumption, for example, is also first tool you should use is the Task Manager very important. The IBM Sequoia consumes 7.9 (start it by keying Ctrl+Alt+Delete simultaneously megawatts whereas the Tianhe-1A uses “only” and left-clicking on Start Task Manager), which 4.04 megawatts. will often give you a good idea of what’s going on or not working. What’s Going On With My Computer? The Resource Monitor is a small subset of the Have you ever experienced an application that utility called Performance Monitor (perfmon). “hangs” or behaves in an unexpected manner? This tool can be activated by going to the Start How about your computer suddenly running oh button, key “perfmon” and left-click on so slow? Ah yes, stuff happens. Resource “perfmon” when it appears. However, perfmon is Monitor (resmon) to the rescue! Resource very complex, highly configurable, and has what Monitor is Windows Task Manager on steroids. appears to be thousands of what are called To activate Resource Monitor, go the Start “counters”, that is sub-functions that monitor a button, key “resmon” and left-click on “resmon” very wide selection of parameters. See when it appears. You will need to have http://technet.microsoft.com/en- administrator privilege to run this tool. us/library/cc749154.aspx for information about Across the top of resmon you will see five tabs: this tool from Microsoft. This is not a tool for Overview, CPU, Memory, Disk and Network. Click neophytes. on any of these and you will see a host of January 2013 www.patacs.org Page 3 Linux and Open Source News most formats or as a separate download. Magnatune does not use DRM, and actually by Geof Goodrum linux(at)patacs.org encourages members to share up to three copies of albums with friends as a way of introducing them to the service Magnatune – an Alternative Music Service (http://magnatune.com/info/give), but limited It’s more difficult to find a wide selection of to one album per friend per month. Even use of music CDs in local stores, and my CD shelves are the music in non-commercial podcasts is allowed near capacity anyway. I occasionally stream (Magnatune has liberal terms for commercial music from music services and radio stations, licensing, too). However, a membership cannot and downloaded a few MP3 tracks using free be shared with others. Instead of treating the credits I received with Amazon.com purchases. customer like a criminal with restrictive DRM However, I won’t pay for music in lossy and legal threats, Magnatune relies on the honor (degraded quality) formats like MP3—I’d rather system. pay the same per-track cost for the original CD Magnatune supports a wide variety of musical with high-quality lossless WAV format audio and categories, from Ambient, New Age, World, “rip” copies in lossy formats for personal use, as I Electronica, Rock, Jazz, Hip Hop, Blues and need them. I resent record labels realizing Classical. Magnatune reviews and selects only 3% greater profits by selling degraded quality music of the music submitted. I’ve found the while eliminating their media duplication, musicianship and recordings to be very high packaging and distribution costs. In some cases, quality. That said, don’t expect to find lots of the downloaded files include “Digital Rights major record label artists on Magnatune – Management” (DRM), also known as copy- though most are talented professional musicians protection, which may limit use on multiple and composers. You can find out for yourself by devices and keeping backup copies. browsing the artist list and background For several years I admired an alternative information on the Magnatune web site and business model adopted by online music service listening to their albums with the online music Magnatune (http://magnatune.com/), which I player for free (the default player uses Adobe find consistent with the Open Source software Flash, but there is an impressive “Web 2.0” player philosophy (see at http://greattuneplayer.jit.su/#/about, as http://magnatune.com/info/openmusic). It’s no well). Magnatune also offers a free Song of the great secret that typical industry recording Day download at http://magnatune.com/today/. contracts rarely favor the artists, as described at Note that a “Magnatune” announcement overlay http://magnatune.com/info/why. As is introduced to free streaming audio previews Magnatune’s founder John Buckman explains on unless you login as a member. the info page under “Why we are not evil,” Magnatune membership is available on a three Magnatune works with artist’s directly, not month ($45), annual ($156) and lifetime ($240) record labels, to market their music. 50% of basis, during which time you can download or Magnatune membership fees go directly to the stream as much music as you like to any device. artist, 50% to Magnatune (details at You get to keep whatever you download, even if http://magnatune.com/info/faq_download#mus your membership expires. The three month and icians). annual options include a seven day free trial. Magnatune is also friendly to its members, who If you use the Open Source Amarok can access music by online streaming (high or (http://amarok.kde.org/) or Rhythmbox low bandwidth) and by download in a variety of (http://www.gnome.org/projects/rhythmbox/) lossy (MP3, AAC, Ogg Vorbis) and lossless (WAV, music players (which include integrated access FLAC) digital formats. Album art is included with (Continued on page 4) Page 4 www.patacs.org January 2013 (Continued from page 3) you may want to download the larger WAV files to Magnatune), use the link built-into the that can be burned to CDs directly and skip the software to sign-up for your Magnatune transcoding step. See the accompanying figure membership. Magnatune will donate 10% of your from a sample download page to see the options membership fee to the project and relative filesizes. (http://magnatune.com/info/faq_download#ope Review: SanDisk Sansa® Clip Zip™ MP3 n). For example, Rhythmbox (the default music Player player in Ubuntu 12.04) has the link under the Rhythmbox menu Edit, then select Plugins, check I had the recent misfortune of dropping my Magnatune Store, and click on Preferences in the venerable (circa 2002) Sharp Zaurus handheld Plugin window. In the Magnatune Store computer and breaking the audio jack off of the preferences window, click the link after “Get an circuit board. Particularly unfortunate, as I’ve Account at” to sign-up for Magnatune to ensure been using the Zaurus as my portable music the project gets the credit.
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