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• What lasts longer: Data stored on non-volatile flash RAM, optical media, or magnetic disk?

  - by Chris W. Rea

  What lasts longer: Data stored on non-volatile flash RAM (USB stick or SD cards?), optical media (CD, DVD, or Blu-Ray?), or magnetic disk (floppies, hard drives?) My gut tells me optical media, but I'm not sure. Furthermore, which of those digital media would be most suitable for long-term data storage where environmental issues are unknown, such as low/high temperature or humidity? For example, what digital media could be stored in a basement, attic, or time capsule, and be expected to survive a reasonably long time? e.g. a lifetime, and then some. Update: Looks like optical media and magnetic tape each have one vote below. Does anybody else have an opinion or know of a study comparing the two?

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• Does the Wacom Bamboo Pen Tablet's Pen have an Eraser?

  - by Vervious

  I'm thinking about getting one of the cheaper Wacom tablets to start doing some "hobby"-ish digital art. Right now I think the Bamboo tablets are the best choice, especially the Pen only one, but after reading reviews it seems like the pen with the Bamboo pen doesn't have an eraser. Can anyone verify this? If it doesn't include a digital eraser I would consider this an enormous downside. Does the Bamboo Pen & Touch have a pen with an eraser? If it does, I would think about it but honestly I don't want the "touch" part considering how terrible it seems to be compared to a normal trackpad. And finally, are there any new Bamboos or something related coming out in the future? I'd like a pen-only tablet (with an eraser) that's cheap and portable and nothing seems to satisfy yet. EDIT: The main question (the eraser one) is talking about the Bamboo Pen CTL460 http://www.wacom.com/bamboo/bamboo_pen.php

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• Why can't connect with second computer in same LAN and settings?

  - by user930450

  I'm trying to connect to WLAN with notebook. The notebook works fine with other WLANs. It can authenticate, signal is "very good" but it says "can't access internet". (On Windows it's small yellow exclamation mark on the signal). With other computer exactly in the same location, with the same settings, it's possible to connect. Both are configurated to get IP dynamically. One difference is that the other computer is using "Ralink wireless" instead normal windows client to connect. But does this make a difference? the settings are the same. What could be the reason?

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• Brand New MOnitor Won't Get Input From CPU

  - by HollerTrain

  I have an old Dell 2350. I found a HD a few months ago and plugged it in and it booted up. So I just purchased a monitor and plugged it in, and put the HD inside and connected the two connections (Bus, and a four pronged connector) and no signal is being sent to monitor. is this a monitor issue or the HD is just dead? HD is spinning. CPU is turned on :) Yet no signal.. any thoughts?

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• How do I get 480i resolution for an external monitor in Windows 7?

  - by Carson Myers

  I'm trying to get a laptop video signal to my really old television, so that I can play movies on it. But the TV won't accept the video signal. I found the manual online, and apparently the output has to be 480i. But I don't know how to do that -- Windows 7 will only let me set the resolution down to 800x600. Even if I get it down to 640x480- is that 480i or 480p? How do I tell the difference? How do I switch between them? How do I get the resolution down so low in the first place?

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• Do all the network cards use the same frequency to send signals to wire?

  - by smwikipedia

  I am comparing my cable TV wire to my network wire. In a TV cable wire, different frequencies are used by different TV channels. And since a certain channel use a fixed frequency, I think the only left way to represent different signal is with the carrier wave's amplitude. But what about the network wire? For all the network cards with the same type, do they also use different frequencies to send signals just like TV cable? I vaguely remember that they use frequency adjustment to represent signals. So the frequency should not be a fixed one. So how did all the network cards that sharing the same medium differentiate their own signal from others?

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• Installing mod_xsendfile on MAMP

  - by mail4alberto

  Hello, I'm having trouble installing mod_xsendfile on MAMP. I've used some sources to try to help me install it: http://iprog.com/posting/2008/04/compiling_mod_xsendfile_for_mac_os_x http://groups.google.com/group/phusion-passenger/browse_thread/thread/e6dac9d5ea0de9c1 I ended up installing apache20 via macports and used apsx command to create the module and then copy it into MAMP's modules folder. I was able to seem to load the module at least. But then I get this error in my apache logs: [Thu May 27 19:08:28 2010] [notice] child pid 68606 exit signal Bus error (10) [Thu May 27 19:08:41 2010] [notice] child pid 68607 exit signal Bus error (10) Can anyone help me out? :S

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• Operative systems on SD cards

  - by HisDudeness

  I was getting some wild ideas the last days, like putting some operative systems into SD cards rather than on my hard drive. I'll go further into details now and explain what lead me to consider this probably abominable decision. I am on a laptop (that means I have a native SD-card reader) which is currently running a cross-distro setup, with a bunch of Linux systems (placed in dedicated ext4 logical partitions into a huge extended one) regulated by an unique GRUB. Since today, my laptop haven't even seen any Windows system with binoculars. I was thinking about placing all the os part of my setup into a Secure Digital to save all my 500 Gb Hard Drive for documents, music, videos and so on, and being able to just remove the SD and boot my system into another computer too, as well as having the possibility of booting other systems into mine by just plugging in another SD, without having to keep it constantly placed in my PC. Also, in the remote case in the near future I just wanted to boot Windows 8 in it, I read it causes major boot incompatibility issues with other systems by needing a digital signature in order for them to start. By having it in a removable drive, I could just get rid of it when I'm needing him and switch its card with Linux one, and so not having any obstacles to their boot. Now, my questions are: I know unlikely traditional rotating disk drives, integrated circuits ones have a limited lifespan in terms of cluster rewriting. Is it an obstacle to that kind of usage? I mean, some Ultrabooks are using SSD now, is it the same issue, or there are some differences between Solid State Drives and Secure Digitals in that sense? Maybe having them to store system files which are in fixed positions (making the even-usage of cluster technology useless) constantly being re-read and updated and similar things just gets them soon unserviceable, do it? Second question: are all motherboards and BIOSes able to boot from SDs just like they are from USB pen drives (I mean, provided card reader is USB-connected, isn't it)? Or can't bootloaders like GRUB be installed on SDs working? If they can't, is it a solution installing GRUB to MBR and making boot option pointing to SD? Will it work? Are there any other problems to installing OSs on a Secure Digital?

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• Email from my new vps is marked as spam

  - by Chriswede

  I got a new vps from x10vps (x10hosting) and set up the domain via cloudflare. This is what the email looks like: Delivered-To: [email protected] Received: by 10.64.19.240 with SMTP id i16csp357708iee; Tue, 9 Oct 2012 01:29:48 -0700 (PDT) Received: by 10.50.57.130 with SMTP id i2mr908846igq.56.1349771387599; Tue, 09 Oct 2012 01:29:47 -0700 (PDT) Return-Path: <[email protected]> Received: from power.SOURCEAPE.COM ([198.91.90.116]) by mx.google.com with ESMTPS id v8si25630942ica.46.2012.10.09.01.29.46 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 09 Oct 2012 01:29:47 -0700 (PDT) Received-SPF: temperror (google.com: error in processing during lookup of [email protected]: DNS timeout) client-ip=198.91.90.116; Authentication-Results: mx.google.com; spf=temperror (google.com: error in processing during lookup of [email protected]: DNS timeout) [email protected] Received: from nk11p03mm-asmtp010.mac.com ([17.158.232.169]:54276) by power.SOURCEAPE.COM with esmtp (Exim 4.80) (envelope-from <[email protected]>) id 1TLVBD-0004Ig-1Y for [email protected]; Tue, 09 Oct 2012 12:28:43 +0400 I then tried to enable SPF and DKIM and got following massage In order to ensure that SPF or DKIM takes effect, you must confirm that this server is an authoritative nameserver for chvw.de. If you need help, contact your hosting provider. Status: Enabled Warning: cPanel is unable to verify that this server is an authoritative nameserver for chvw.de. [?] and the email header now looks like this: Delivered-To: [email protected] Received: by 10.50.183.227 with SMTP id ep3csp14506igc; Tue, 9 Oct 2012 01:55:23 -0700 (PDT) Received: by 10.50.40.133 with SMTP id x5mr992934igk.32.1349772923717; Tue, 09 Oct 2012 01:55:23 -0700 (PDT) Return-Path: <[email protected]> Received: from power.SOURCEAPE.COM ([198.91.90.116]) by mx.google.com with ESMTPS id ng8si25688859icb.42.2012.10.09.01.55.23 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 09 Oct 2012 01:55:23 -0700 (PDT) Received-SPF: temperror (google.com: error in processing during lookup of [email protected]: DNS timeout) client-ip=198.91.90.116; Authentication-Results: mx.google.com; spf=temperror (google.com: error in processing during lookup of [email protected]: DNS timeout) [email protected]; dkim=neutral (bad format) [email protected] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=chvw.de; s=default; h=Message-ID:Subject:To:From:Date:Content-Transfer-Encoding:Content-Type:MIME-Version; bh=iugsx3Lx0KnqjR7dj3wyQHnJ9pe/z3ntYEVk80k8rx4=; b=IrYsCtHdoPubXVOvLqxd7sLE/TyQTS5P3OrEg5SSUSKnQQcQ/fWWyBrmsrgkFSsw6jCmmRWMDR09vH5bQRpFPMA57B7pf8QRKhwXOWFBV+GnVUqICsfRjnNPvhx/lNp5; Received: from localhost ([127.0.0.1]:46539 helo=direct.chvw.de) by power.SOURCEAPE.COM with esmtpa (Exim 4.80) (envelope-from <[email protected]>) id 1TLVb0-0004dZ-Kd for [email protected]; Tue, 09 Oct 2012 12:55:22 +0400

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• Brand New Monitor Won't Get Input From Computer

  - by HollerTrain

  I have an old Dell 2350. I found a HD a few months ago and plugged it in and it booted up. So I just purchased a monitor and plugged it in, and put the HD inside and connected the two connections (Bus, and a four pronged connector) and no signal is being sent to monitor. is this a monitor issue or the HD is just dead? HD is spinning. CPU is turned on :) Yet no signal.. any thoughts?

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• HP Z210 SFF: two different video cards produce no Displayport output when installed

  - by ConcernedOfTunbridgeWells

  I have a HP Z210 SFF that I'm trying to install a video card into. I've tried two different cards in Slot 2 (a Quadro FX380LP and a Quadro 600). Neither of these cards produce a displayport signal when installed. With neither installed the displayport port on the motherboard works fine with the built in graphics. When I install the cards it produces no signal and the cards don't either. The Quadro 600 is brand new and the odds of having two dead video cards is quite low. Is there something fundamental that I could be missing out - a BIOS setting maybe?

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• How to programmatically control slave computer on BIOS level?

  - by PovilasSid

  I want to run some test on hardware level. My goal is to create or find a way to control one computer from another down to BIOS settings changing. For example: Master computer sends a signal for slave to restart and opens BIOS settings dialog. Master computer sends a signal to slave to change BIOS parameters and then restart. Then slave fully boots up master starts up some software on slave. Then software finishes operations cycle continues till certain conditions are met. I know that I am looking for a complex thing but mainly what I need are correct keywords because now I am being flooded by BIOS configurations tutorials. Main concerns: Is it possible without using any custom tailer chip? How can master monitor salve`s hardware activity? How to let master handled more than one slave? How what connections are needed to create this kind of setup? (cables)

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• Is it possible to make Ctrl+C as responsive as Ctrl+Break in the Windows 7 console?

  - by Peter Graham

  Is it possible to make Ctrl+C act like Ctrl+Break in the Windows 7 cmd.exe console? By default Ctrl+C seems to only send a signal the next time the input buffer is read, where Ctrl+Break sends a signal immediately. This makes Ctrl+C useless for ending processes because when I want to end a process I want to end it immediately. I'm using Ctrl+Break for now but it's far harder to type. It looks like in DOS you can add BREAK=ON to CONFIG.SYS to achieve this, but not in Windows 7?

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• VMWare Workstation Dev Machine Disks: one fast or four echofriendly raid?

  - by Avi

  I'm building a new dev computer. It will be running a few VMWare Worksation virtual machines - A dev machine running VS-2010, a build machine, a version-control machine, a web server for testing, a "personal" machine running office etc. I'll be connecting the computer to my stereo, so I'll also be running iTunes (possible on a dedicated VM) and I want the computer to be a silent one. I'll probably use an Antec P183 case. I was advised on Serverfault to use Raid10 for performance. Raid 10 uses 4 disks. So, my question is as follows: In terms of heat, noise, reliability, warranty, price, capacity and performance, what would you suggest: A Raid10 4 disk array using eco-friendly disks such as the $94 1TB Western Digital Caviar Green, or one high performance disk such as the 2TB Western Digital Caviar Black at $280?

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• Error When Trying to Exchange Encrypted Emails with Sender Outside Domain

  - by LucidLuniz

  I have an end user who is trying to exchange encrypted messages with a person outside of our company domain. When receiving emails from the user they receive a message that says: Signed By: (There were errors displaying the signers of this message, click on the signature icon for more details.) However, when you click on the signature icon it says: The digital signature on this message is Valid and Trusted. Then when you look at the "Message Security Properties" it shows two layers, each with a green checkmark beside them. The layers are presented as below: Subject: Digital Signature Layer It also has: Description: OK: Signed message The end result with all of this is that when the user on my side tries to send this user an encrypted message it says: Microsoft Outlook had problems encrypting this message because the following recipients had missing or invalid certificates, or conflicting or unsupported encryption capabilities: Continue will encrypt and send the message but the listed recipients may not be able to read it. However, the only options you are actually given is "Send Unencrypted" and "CanceL" (Continue is grayed out). If anybody can assist I would greatly appreciate it!

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• No break compatible with Linux box?

  - by Somebody still uses you MS-DOS

  I'm buying this unit from deal extreme: it's a bitorrent downloader, with NAS capability. I'm interested in sharing an external HD in it, with media and backup purposes. I'm afraid of energy problems (don't know if this is the correct term), corrupting my mounted drives (like after a storm), so I thought about buying a No Break that sends a "signal" to my Linux box, and a script in my Linux box would unmout everything to avoid problems. Do this "No Break signal" feature exists? Do you have model suggestions? Thanks!

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• DVI-D Splitter Not Working with GeForce 8400gs

  - by jimdrang

  I have a GeForce 8400gs and it has a DVI and VGA port on the back. I was using dual monitors with one VGA and one DVI cable. I wanted both displays to be digital so I bought a DVI-D splitter and put one DVI cable in each monitor, connected them to the splitter and put the single merged connection in the back of the cards DVI connection. It will not recognize the second monitor (I'm not even sure how it determined which one was the first monitor). The tech specs state that it supports "Two dual-link DVI outputs for digital flat panel display resolutions up to 2560x1600" http://www.nvidia.com/object/geforce_8400_tech_specs.html. Do I need a different converter or is my only option for dual monitors with this card one VGA, one DVI?

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• Random Server shutdown? - CentOS

  - by Kevin Hammett

  My system was working fine, and then it just had a random restart. Anyone have any idea of the problem? The message log: Jul 6 22:56:34 909I7 shutdown[719711]: shutting down for system halt Jul 6 22:56:34 909I7 init: Switching to runlevel: 0 Jul 6 22:56:35 909I7 smartd[10743]: smartd received signal 15: Terminated Jul 6 22:56:35 909I7 smartd[10743]: smartd is exiting (exit status 0) Jul 6 22:56:42 909I7 hcid[8749]: Got disconnected from the system message bus Jul 6 22:56:42 909I7 auditd[8430]: The audit daemon is exiting. Jul 6 22:56:42 909I7 kernel: audit(1341640602.922:344412): audit_pid=0 old=8430 by auid$ Jul 6 22:56:43 909I7 pcscd: pcscdaemon.c:572:signal_trap() Preparing for suicide Jul 6 22:56:43 909I7 pcscd: hotplug_libusb.c:376:HPRescanUsbBus() Hotplug stopped Jul 6 22:56:44 909I7 pcscd: readerfactory.c:1379:RFCleanupReaders() entering cleaning f$ Jul 6 22:56:44 909I7 pcscd: pcscdaemon.c:532:at_exit() cleaning /var/run Jul 6 22:56:44 909I7 kernel: Kernel logging (proc) stopped. Jul 6 22:56:44 909I7 kernel: Kernel log daemon terminating. Jul 6 22:56:45 909I7 exiting on signal 15

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• How can I connect a DVI monitor to the VGA port in my laptop?

  - by Corey

  Is there a device I can buy that will convert the analog signal to digital?

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• Extend university wifi network [migrated]

  - by asfasdoiuh ouhouhouh

  i live in a university campus and i can get wifi signal on the outside of my window but not in the house. The solution i use at the moment is a usb wifi dongle outside connected to my laptop but the lack of an internal antenna make the connection quite unreliable at times. So i was trying to find another solution to improve the reception of my network. One idea is to setup a router on the outside (in a place with stronger signal) and redirect the connection inside the house with an ethernet cable but the problem is that our Uni Wifi is managed by a capitve portal (BlueSocket with DNS redirection to login page) and the authentication has to happen on the mac address that connect to the net (so the client appliance in this case). If I use a router with Mac-Clone capability i will be able to be redirected trough the captive portal on my laptop computer and login from there or i need to setup my router to fill in the login page by itself? There are other hardware/software solutions i can use to get what i want? Thank you all

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• Win XP cannot connect (or see) my wifi network, but can see others

  - by Jorre

  since yesterday I have a strange wifi problem with my pc. I have a wireless linksys router setup that worked fine for many months, now since yesterday my pc won't connect to the wifi signal anymore. The strange thing is, my macbook pro still connects fine. SSID is broadcasting, but my windows XP doens't see it, I have all signal modes set to "auto". Windows XP sees all my neighbours wifi networks, so the wifi card isn't broken or anything. Any idea what can be wrong here?

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• Extend university wifi network

  - by asfasdoiuh ouhouhouh

  i live in a university campus and i can get wifi signal on the outside of my window but not in the house. The solution i use at the moment is a usb wifi dongle outside connected to my laptop but the lack of an internal antenna make the connection quite unreliable at times. So i was trying to find another solution to improve the reception of my network. One idea is to setup a router on the outside (in a place with stronger signal) and redirect the connection inside the house with an ethernet cable but the problem is that our Uni Wifi is managed by a capitve portal (BlueSocket with DNS redirection to login page) and the authentication has to happen on the mac address that connect to the net (so the client appliance in this case). If I use a router with Mac-Clone capability i will be able to be redirected trough the captive portal on my laptop computer and login from there or i need to setup my router to fill in the login page by itself? There are other hardware/software solutions i can use to get what i want?

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• UPS compatible with Linux box?

  - by Somebody still uses you MS-DOS

  I'm buying this unit from deal extreme: it's a bitorrent downloader, with NAS capability. I'm interested in sharing an external HD in it, with media and backup purposes. I'm afraid of energy problems (don't know if this is the correct term), corrupting my mounted drives (like after a storm), so I thought about buying an UPS that sends a "signal" to my Linux box, and a script in my Linux box would unmout everything to avoid problems. Do this "UPS signal" feature exists? Do you have model suggestions? Thanks!

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• Is it better to use a crowded 2.4GHz Wi-Fi channel 1, 6, 11 or "unused" 3, 4, 8, or 9?

  - by Luke

  I understand that 2.4GHz Wi-Fi channels overlap, and that the only non-overlapping channels in the US are 1, 6, and 11. Generally, my signal strength on channels 1, 6, and 11 are much stronger than my neighbors' on the same channel. However, several of the channels may have 4 or 5 others on that same channel. In this scenario, is it better to use 3, 4, 8, or 9? Or is it better to use the crowded channels 1, 6, and 11? As a secondary question, does it even matter that my signal strength is much higher than theirs? Related: Why use wifi channels other than 1, 6 or 11?

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• Is 50% download speed on a wireless G network normal?

  - by Bartlomiej Skwira

  I have a wired connection of about 36Mb/s, but my wireless speed is max at about 18-19Mb/s. I have a WRT54G-TM (T-Mobile, 802.11G) router with DD-WRT firmware - I've upgraded it to latest build. Done some settings changes: changed channel - 13 wireless network mode - G-only ACK Timing - 0 Fragmentation Threshold and RTS Threshold - 2304 Basic Rate - All Signal/Noise ratio: -46/-94, signal quality ~50-60%. Is this normal with G networks? Edit: The AP is located about 2 meters from laptop, no walls or metal objects, but its next to a TV. I've done a channel scan (had problems locating it, go to "Status - Wireless - Site survey" - lame naming) and everybody else is on channels 1 and 6. Switched to channel 11 but it didn't help. As for trasmit power I got best results with default 71mw. The antenna might be a factor, I'm using the default 2 antennas.

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