Another alternative is a fully-written-to, fully-locked CD/DVD, which would work just as well, and because it'd be fully written to and have no extra open space on it when you fully lock down the device, the disk would already be considered 'read-only'. Unless you need to share huge files, though, in which case the DVD option might not work well. More and more devices, however, are being released into the market without CD/DVD drives, however, which means this is not the most ideal solution either.
... you start going into the world of very expensive equipment, such as the Apricorn Aegis SecureKey 3 which is a hardware encrypted thumb drive which permits you to set a passcode for admin mode but also provide read-only user passcodes as secondary codes on the device. That way, the disk is locked into read-only mode for non-admins, and read/write mode for the admin code user.
Writable disks are really cheap. Drives are cheap too. Buy an external USB DVD writer for less than 30 USD, it will work on any modern computer, and you can lend it to students that don't have their own drive.
All but expensive disks are write-once, so the data you write onto the disk can't be rewritten. You have to make sure you write the disk to its full capacity though, or else the file system on the disk can be modified or replaced by writing more data in the empty regions. Even if you do leave empty space, there's fewer malware that will spread on an optical disk than on a flash drive.
The drawback of this is that if you want to share data that's larger than what fits on a few disks (a writable DVD has about 4 gigabytes of capacity), then a large capacity flash drive is much more convenient than lots of disks. I don't expect that would apply in your case though.
A similar trick could be played on encrypted drives with read-only passcode: one of the students could save a drive image, write an infected image with the same read-only passcode and circulate the drive among the rest. The original image could then be restored before the drive is given back to you.
I bought an IBM Thinkpad in Spring 2004. It was built like a tankand came pre-installed with Windows XP Professional on the firstbootable partition of the C: drive. The second partition had thestandard IBM recovery utility. I ran XP for over four years. Aspositive features, XP gave me:
When I was on a road trip in late 2008, my XP started to selfdestruct. It got much slower, the RAM seemed fuller than usual, itwas paging more than normal. The final demise may have been triggeredby Nokia's phone utility, I cannot be sure. I tried using my NokiaGPRS phone to connect to the Internet from XP. I could not get aconnection. I did not have the duplicate disk, but had a pen drivewith Ubuntu Hardy Heron on it. I booted the pen drive, and wasstunned to see Hardy recognize the phone, dial out, and get me onlinein 30 seconds. You'd think it's almost sinful for Linux to be soeasy.
It should surprise no one that there was advice on the Web touninstall and reinstall the Nokia application. Booting back to XP, Inoticed that suddenly I had lost the power to uninstall any softwarefrom XP's control panel. The uninstall buttons were gone! (Muchlater I ran smartctl on the old drive and found 4 badsectors, which is extremely unlikely to bring down any Linux. Thedisk is happily running Jaunty even today in 2011.)
I survived the trip on Hardy-on-USB. On returning home, I couldfinally gloat over my backup plans. I popped in the replacement driveand got ... the blue screen of death. So I organized a XP CD, andtold it to \"fix\" my installation. Unlike Linux, XP won't tell youwhat exactly it is doing. After it was done, I tried to reboot, andgot some bizarre messages about drivers, and the laptop locked upagain before booting was complete.
I could use the IBM restore utility, but that would set me back tothe factory-reset item in 2004. My home directory I had backed upelsewhere (or could access via ntfs-3g), but I definitely didnot want to waste days reinstalling all the drivers and software toget back my working environment.
For over three years now, I have run Jaunty happily on the X40. Ionly heard of the angst of other folks trying Linux on laptops, neverexperienced it myself. Booting showed a nice informative splashscreen including fsck or thaw progress if need be. Suspendand hibernate just worked, without having to fool around withtuxonice or uswsusp. Screen blanking on lid up/down was perfect.All Fn-F keys worked perfectly, and tpb showed suitable OSDresponse. For basic office work the Intel driver for the 855GME ranin EXA mode and was quite fine. After a few tweaksto xorg.conf and /proc/mtrr I could run in UXA modeand watch video that was at least as smooth as on XP. ALSA audio wasadequate. Even docking and undocking worked. I still ran apared-down XP inside VirtualBox to fire up MSOffice. What more couldI want
Up to Jaunty, things were tolerable if not perfect. Intel hadstarted fooling around with the driver they so generously (sarcasmhere) contributed to the Linux community, with their XAA, EXA, andthen UXA implementations, but you could at least make it work inJaunty. From Karmic, graphics support for Intel 8xx and 915 chipsstarted falling apart, until Lucid, an LTS release, wasshipped with an installer that hangs on these chips. To getit to even boot, you need to fiddle with kernel command lineparameters. Seems i915.modeset=1 works for most 8xx chips,but the opposite (i915.modeset=0) has also been reported. Gofigure. And even if you manage to boot the live OS, just playing avideo will instantly lock up the PC and require a power cycle.
Unfortunately, the Intel driver and the window manager interactclosely with each other. Video may crash your laptop only with compizbut not metacity. The Flash plugin may work with mutter but notcompiz. Panning on a larger external VGA monitor works with mutterbut not metacity. You never know for sure. Rejoice, we are back tothe mysterious days of Windows 98! Even the shutdown is almost asfast!
But naturally the open source folks cannot work with each other.So Ubuntu is going to phase out metacity and compiz and replace withmutter, a branch of metacity. My test drive of mutter in early 2011was lackluster. Glxgears got poorer frame rates than metacity, andeven visually, it was clear that rendering neededimprovements.
To further add to the misery, they could not leave gnome be,but are going to release an all new gnome3, and Gnome Shell(originally for netbooks) and the Unity theme. I have no in-depthknowledge of what these are, but you are guaranteed to waste daysgetting back to your comfort level in a new, unfamiliar desktopinterface. WhyLid switch, power management, backlightAt the time of writing, Google reports 1.63 million hits for thequery mousedisappears on lid close. That should tell you something about thestate of desktop Linux. Gnome screensaver, power management, ACPI,HAL, the Intel driver, were all probably written by different peoplewho don't talk to each other much. Here are the results.
This limited warranty only applies if the Equipment is used in conjunction with compatible computer equipment and compatible software, as to which items Canon USA will have no responsibility. Canon USA shall have no responsibility under this limited warranty for use of the Equipment in conjunction with incompatible peripheral equipment and/or incompatible software. Non-Canon brand peripheral equipment and software which may be distributed with, or factory loaded on, the Equipment, are sold 'AS IS' without warranty of any kind by Canon USA, including any implied warranty regarding merchantability or fitness for a particular purpose. The sole warranty with respect to such non-Canon brand items is given by the manufacturer or producer thereof. If the Equipment contains a hard disk drive, Canon USA recommends that data stored on that drive be duplicated or backed up to prevent its loss in the event of failure or other malfunction of such drive.
Definitely 4:3 all the way. Widescreen laptops are clunky and ugly from all the wasted space- have you seen those mammoth HP laptops with 6 inches of unused horizontal space on the keyboard and a full numpad! When I got a second monitor I got widescreen though, since it came down to a choice between 1400x1050 (same as my primary display) and 1680x1050. The extra horizontal pixels won out, and those 280 pixels are perfect for snuggling a google talk window on the far side of the monitor :D The best is undoubtedly multi-monitor.. SO much space it's glorious, but if you're stuck with 1 display use 4:3 --f f r o t h 03:05, 10 January 2008 (UTC)Reply[reply]
A lot of exciting information was learned at FOSDEM from Wine on Android to Freedreno Gallium3D moving along to the open-source Tegra driver, but on a more grim note, a well known open-source graphics driver developer had passed away.
David Herrmann, the open-source developer that has made it a personal crusade to kill the Linux kernel console and to replace it with a user-space solution, has published the code to a new DRM kernel mode-setting driver. This new kernel driver is a generic VESA BIOS Extension DRM implementation like the vesafb VESA frame-buffer driver.
Microsoft's exFAT is a file-system designed for flash drives and is supported on Windows XP and later. The exFAT file-system has been around for a few years, but an open-source version hasn't been quick to come since the Microsoft project is proprietary and encumbered by patents. This weekend, a FUSE-based version of exFAT has reached version 1.0.
While the Freedreno driver was only born last April as an open-source reverse-engineered Qualcomm Adreno/Snapdragon graphics driver, its Gallium3D driver is already onto handling the XBMC multimedia player.
The A.Serv A1150 SuperBird 1U RackServer with AMD Athlon XP 1600+, 1800+ and 1900+ CPUs are available immediately at $1,395, $1,595 and $1,795, respectively. Standard configu