Showing posts with label USB. Show all posts
Showing posts with label USB. Show all posts

virtualization_software Virtualization software helps you run multiple operating systems on the same computer.

For instance, you can use a virtualization tool like Apple Boot Camp or Parallels to run Windows on your Mac computer or you may use the free Virtual PC program from Microsoft to run Linux, DOS or even multiple Windows environments inside your Windows PC.


Virtualization tools aren’t just for geeks.

You may use these programs to try out other operating systems on your computer without disturbing the existing setup. Or, if you have upgraded to a newer OS, you can create a virtual machine of your previous OS and use it to run older programs that aren’t supported in your new OS. Or if you want to run multiple versions of the same software (like Photoshop CS4 and Photoshop CS5), you can install one of them on your main OS and the other inside a virtual machine.

Virtualization Software for Windows

Although desktop virtualization programs have been around for many years, they are more mainstream now than ever before.

In order to run virtualization programs like Windows Virtual PC or VMware Player, your computer needs to have a processor that supports hardware virtualization. Most newer processors already support this but you may also use the free SecurAble utility to determine if your computer processor supports hardware virtualization or not.

If the CPU inside your Windows PC supports virtualization but you are unable to use a Virtualization program, chances are that you need to enable that feature via your BIOS. Microsoft offers an easy guide on how you can turn on virtualization through the BIOS dashboard.

If your computer has an older processor that does not support hardware virtualization, you can still run virtual machines using Microsoft Virtual PC 2007 or Virtual Box, as they don’t require it.

Windows Virtual PC and Virtual PC 2007

Windows Virtual PC, that is designed to run previous versions of Windows seamlessly inside Windows 7, has made desktop virtualization even more ubiquitous. Programs installed in the virtual operating system will show up in the host computer’s Start menu, and you can even set them as the default program for handling a particular file type.

Windows Virtual PC can run on all editions of Windows 7, but users of the Home edition will have to create their own virtual machines from an original Windows installation disk or from old Windows installation. In addition to running Windows XP, you can also use a Virtual PC to run Windows Vista, XP, Windows 2000 and even some versions of Linux including Ubuntu, OpenSuse and Red Hat Linux.

Virtual PC offers some unique features like you can store changes on a separate virtual hard drive than the operating system, and there’s support for undo disks so you can roll back changes made to a virtual machine. Windows Virtual PC requires hardware virtualization and won’t run on computers that don’t support this.

The older version of Virtual PC, Microsoft Virtual PC 2007, is still available as a free download. Virtual PC 2007 can run on any computer running Windows XP or newer and does not require a processor that supports hardware virtualization. This makes it useful for Windows 7 user who want to use the XP mode but do not have a processor with hardware virtualization.

VMware Player

First released in 2005 as a free solution to run pre-built virtual machines, VMware Player 3.0 is now a complete basic desktop virtualization solution that allows you to create, manage, and run virtual machines.
VMware Player supports 64-bit guest operating systems and you can send print commands to the printer attached to the host OS. VMware offers a Unity mode that lets you run programs from a virtual machine alongside programs running on your main operating system.  You can also launch programs in the virtual machine via a program menu that appears above your standard Windows start menu.

VMware requires Windows XP and newer, including 64 bit versions, and you can run Windows 95 and newer, Linux, DOS, BSD, etc. as virtual machines. If you are running VMware Player on Windows 7 Professional or Ultimate, you can import your virtual copy of XP from Windows XP mode and run it directly in VMware Player.  Finally, VMware offers a wide range of preconfigured virtual appliances that allow you to test and run programs and operating systems quickly and easily.

Sun VirtualBox

VirtualBox is equally at home on Windows, Mac OS X, and Linux, and supports a wide range of guest operating systems (except Mac OS, which is not licensed for virtualization).

VirtualBox can run a wide variety of virtual machines from other desktop virtualization programs. It will even run the XP mode from Windows 7, allowing you to run XP mode on computers that lack hardware virtualization support. It can capture snapshots of a virtual machine and these are handy if you want to roll back changes later.

Finally, VirtualBox allows you to run a guest OS seamlessly with your host OS through Seamless Mode.  This places the guest’s taskbar in your host OS’ desktop, which lets you fully control the guest OS right inside your standard host desktop.

Comparison of Virtualization Software for Windows

 

  Windows Virtual PC Microsoft Virtual PC 2007 VMware Player 3.0 VirtualBox 3.0
Quick Description: Designed for running Windows XP Mode, Virtual PC integrates Windows Virtual Machines seamlessly with Windows 7. The older version of Windows Virtual PC, Microsoft Virtual PC 2007 allows XP and Vista users to easily run virtual machines on their computers. Easy to use and free, VMware offers fully integrated support for Windows and Linux guests Sun’s open source answer to virtualization, VirtualBox excels at running Linux on Windows, and also allows computers without hardware virtualization to easily run virtual machines.
Runs on: Windows 7 Windows XP and newer Windows XP and newer, and most current editions of Linux Windows XP and newer, Mac OS X, and most current editions of Linux
Requires Hardware Virtualization: Yes No Yes No
Create Virtual Machines Yes Yes Yes Yes
Run Virtual Machines from other virtualization programs: No, only supports VHD virtual hard disks. No, only supports VHD virtual hard disks. Supports virtual machines from all VMware products, Windows Virtual PC and Virtual Server, and Symantec backup and recovery images. Supports all virtual machines using the Open Virtualization Format; this includes support for virtual hard drives from Windows Virtual PC and VMware.
Supported Guest operating systems Windows XP and newer, other operating systems (like Linux) may work but not officially supported Windows 98 and newer, IBM OS/2, other operating systems (like Linux) may work but not officially supported Windows 3.1 and newer, DOS, Solaris, FreeBSD, and most current editions of Linux Windows NT 4.0 and newer, Solaris, most current editions of Linux
Supports 64 bit guests (on computers with a 64 bit CPU): No No Yes Yes
Desktop Integration: Yes, Run programs from supported versions of Windows directly from host’s Start Menu.  The programs are automatically published to the host’s Start menu, allowing them to show up in Start menu search as well. No Yes, in supported operating systems using Unity mode.  This puts a small menu above the standard start menu to launch programs from the virtual OS. Yes, in supported operating systems using Seamless mode.  This puts the guest’s taskbar in your host’s desktop, allowing for full interaction with the guest operating system.
Supports USB peripherals: Yes, supports all USB devices connected to the host system, even if they are not recognized by the host system. No Yes, supports all USB, Parallel, and Serial port devices connected to the host system. Yes, supports all USB devices connected to the host system.
User Manual: Online XPS file PDF PDF

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Let’s assume you have two computers at home and you want to connect them together so that you can easily share an internet connection between the two machines or transfer photos, music and other files from one computer to another. How do you do this?

Connect Two Computers Directly

There are two options – you can either buy a router or, if you are looking for something more simple and don’t want to spend money on new networking hardware, you can connect the two computers using a commonly-available cable. The latter method doesn’t involve any complicated network settings and you will still be able to share files, internet connection, and even printers between computers.

Things you need:
To set up this basic wired home network, all you need is an inexpensive Ethernet crossover cable and the other requirement is that network cards* (also known as LAN or Ethernet cards) should be installed on each of you computers.

This should not be an issue because network cards are available on most newer machines by default but if you are working with a very old computer, you can either attach an internal LAN card to your computer’s motherboard or go for a USB Network adapter that will turn a USB port into an Ethernet (RJ45) port.


Ethernet Cables for Connecting Computers



An Ethernet crossover cable looks like a standard Ethernet cable but the internal wiring is a little different. You can purchase crossover cables at Amazon.com or from your local computer store. If you have trouble finding them, you can purchase an inexpensive crossover adaptor and that will let you use any standard Ethernet cable as a crossover cable.

Connect Computers with an Ethernet Crossover Cable

Before connecting the two computers with a physical cable, make sure that both machine are using the same workgroup*. Here is step-by-step guide that explains how you can change the workgroup of your computers.
Changing workgroup in Windows XP – From the Start menu, right-click “My Computer.” Select Properties in the drop-down menu, and then select the second tab that says “Computer Name” from the System Properties window. Now click the “Change…” button, enter a unique Workgroup name and reboot your computer.

1. My Computer - Properties 2. Change Workgroup Name 3. Save Workgroup Name and Reboot

Changing workgroup in Windows 7 or Vista – Open the Control Panel, type “Workgroup” in the search box, and select the entry that says “Change Workgroup Name.” Click the “Change…” button, enter a Workgroup name and restart the computer. Windows 7 users can skip one step; simply type “Workgroup” in the search box in the start menu, and select the first entry, then proceed as above.

1. Search Workgroup from Control Panel  2. Change Workgroup - Vista or Windows 7  3. Assign Workgroup Name

Now that the workgroups are same for both computers, connect the two computers together using the Ethernet crossover cable. Simply plug-in one end of the crossover cable into the network adapter of Computer A and connect the other end of the cable to the network adapter of Computer B.
Windows will automatically recognize the new network, and you can now easily view files and folder that the other computer has shared. Simply open Networks from the Start Menu (or the Control Panel), and you should see the other computer by its name. You can then browse any shared files on the other computer, and can even utilize shared printers.

Troubleshooting – If you do not see the other computer under Networks, you probably have a prompt at the top of your Network window saying that Network discovery is turned off (screenshots below). Select “Turn on Network Discovery and File Sharing.”  In the next prompt, select “No, make the network I am connected to a private network.”  Now you should see the other computer on the home network.

1. Turn on network discovery 2. Turn Off File Sharing for Public Networks

While it is possible to share files between two computers connected with a crossover cable without making them part of the same workgroup, the method will only work if both computers have this network set as a private network, and may still cause problems. It is therefore advisable to have both computers on the same workgroup before sharing files and printers.

Share an Internet Connection Between Two Computers

There are scenarios where you may want to share the same internet connection between two computers. For instance:

Situation A - You have setup a Wi-Fi network at home but your old desktop computer doesn’t have a wireless network card. In that case, you can use the laptop to connect to the internet wirelessly and then share that same connection with the desktop over a crossover Ethernet cable.

Situation B – You have a netbook with a built-in cellular data connection. You can share that connection with any another computer at home through the crossover Ethernet cable.

Situation C – You use a (slow) Wireless USB modem with your laptop computer while your desktop is connected to an ADSL Broadband line and there’s no router at home. For any bandwidth intensive tasks, like when you want to backup photos from your laptop to an online service, you can connect the laptop to the desktop and things will happen much faster.

OK, let’s look at the steps required for sharing an Internet connection.
First, if you only wish to share internet connection and not files, both computers need not belong to the same workgroup. All you need to do is to connect the two computers with the Ethernet crossover cable, and then turn on Internet connection sharing in the computer that already has an Internet connection. The instructions vary for different versions of Windows:

For Windows XP – Select “Network and Internet Connections” from the Control Panel and click “Network Connections.”

 1. Network and Internet Connections 2. Change Network Connection Properties 3. Allow Internet Connection Sharing

Right-click on the network connection you wish to share (the one connected to the internet), select Properties, click on the “Advanced” tab, and then check the box that says “Allow other network users to connect through this computer’s Internet connection.”  Click OK, and the second computer that you have connected to this computer with the Crossover Cable should have internet access now.

For Windows 7 and Vista – Open Control Panel, enter “network connections” in the search box on the top right and select “View Network Connections.”

Vista - Share internet connection 1 Vista-7 - Share Internet Connection 2 Vista-7 - Share Internet connection 3

Right-click on the network connection you wish to share (this must be the one connected to the internet) and select Properties. Select the "Sharing" tab and then check the option that says “Allow other network users to connect through this computer’s Internet connection.” Click OK, and the other computer you have connected to this Windows 7 or Vista computer should have internet access now.

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screen capture with paint

PicPick is an useful Windows utility that includes a decent screen capture program, a Paint like image editing software and a whiteboard tool to help you draw freehand on the desktop using your mouse (handy when you are giving presentations).

During screen capture, you can select the "Capture Window Control" mode and capture objects that extend multiple screens (like a long Word document or a lengthy web page). And like SnagIt, PicPick can send screenshot images directly to another programs after capture or it can automatically upload them to an FTP server.

Portable Image Editor

portable image editing program

The image editor included with PicPick sports an Office 2007/2010 like ribbon interface and supports tabs so you can edit multiple screenshot images / photographs from the same window.

If you are a web designer, you can use the built-in crosshair tool to determine the coordinates of any point on the desktop screen or for capturing the exact dimensions of an object (in pixels).

And since the software doesn’t require installation, you can put it on a USB drive and use it on any computer.

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It's yet another Windows 7 problem, but at least the new Microsoft OS is not the only common factor in this issue. Some iPhone users are having troubling syncing with iTunes, but besides Windows 7, another common factor is they they are all using computers with an Intel P55 Express Chipset.

The affected users are ironically discussing the problem on the Apple support forums. One thing that seems to have worked for some is disabling Power Management for the USB root hub on the system that an iPhone is connected to.

The exact steps seemed to be:

  • Start / Control Panel / System / Device Manager
  • View -> Devices By Connection
  • Click arrow next to ACPI x64-based PC
  • Click arrow next to Microsoft ACPI-Compliant System
  • Click the arrow next to PCI bus
  • Click the arrows to expand "USB" related HW
  • Right click on USB Root Hub / Properties / Power Management
  • Uncheck "Allow the computer to turn off this device to save power

On the other hand, this didn't work for all. Some tried getting a PCI-based USB card. Some tried a downgrade to an earlier version of iTunes. Nothing has worked consistently.

One thing has been fairly consistent: quite a few people throwing up their hands and saying they might re-consider the Mac.

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on Saturday, November 14, 2009


If you have worked with computers for any length of time you know just how important the data that lives on our computers are to us. From our music, to photographs to financial data we all rely on those files being there when we boot up our computers. So the question is, "When was the last time you backed up your computer?" You see it is not a question if your hard disk will fail but a question as to when will it fail. While we go our merry way thinking that our computers will work as they should, there will come a time when you boot up and you get the dreaded error message that your computer will not start up. If a technician can't get the system up an running you will be faced with the option of having to reformat your hard drive and lose all of you files. Wouldn't it be nice if you had prepared for this event and had a backup that you could access to restore all of your data files.? I know the answer to this question, and have been working with a number of products from Clickfree to see how well they work. Clickfree has a number of products that let you easily backup your data files without the need to install any software. Clickfree tries to make the process of backing up your hard drive as fuss free as possible and in this regards- they have accomplished their goal.

I had a chance this week to take a look at Clickfree's Transformer Cable, which turns any external USB drive into a Clickfree backup solution. The Clickfree Transformer Cable is a small USB cable with the attached Transformer pod on it that you simply plug into your computers USB port. Once the Transformer is plugged into your computer you can plug in your external USB drive and within seconds the Clickfree Backup software runs finding, organizing and backing up all of your files. It is really that easy- with no software to install. With the price of external USB drives coming way down in price there is no excuse not to have your data backed up. Clickfree Transformer Cable works with Windows Vista®, Windows® XP and Mac OS X 10.5 or later.

I have to say that the Clickfree's Transformer Cable worked as advertised. I was able to back up my Dell XPS 1210 using the Clickfree's Transformer Cable in a couple of minutes and all I needed to do was plug in my external USB drive into the Clickfree's Transformer Cable. Now I have the peace of mind that my files are safe should my hard drive crash. The Clickfree's Transformer Cable backs up all of your data files and includes a Restore function should you need to restore your files. You can also search for files using the Clickfree Backup Software and access individual files should you need them. Clickfree saves your data files in the native application's file format so that it is easy to access should you need to copy or move them to another computer. The Clickfree Solution backs up over 400 difference types of files from your hard drive so that you can be rest assured that they will be there when you need them. Clickfree Transformer also ships with a small application which you can install to your computer which will remind you to backup your files- you can also set it up the Clickfree Transformer for Unattended Backups as well. You should note that the Clickfree's Transformer Cable Backup Solution does not backup your software applications or your operating system. If this is important to you, you may want to look at another solution (I hope to share this solution with you in another post shortly). But for the peace of mind of having all your data files backed up, the Clickfree's Transformer Cable solution worked as advertised. If you need a simple no fuss method to back up your computer files then this is the way to go- trust me you will be happy you did!

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