Data recoveryData recovery is the process of salvaging data from damaged, failed, wrecked or inaccessible primary storage media when it cannot be accessed normally.
Often the data is being salvaged from storage media formats such as hard disk drive, storage tapes, CDs, DVDs, RAID, and other electronics.
This can be due to physical damage to the storage device or logical damage to the file system that prevents it from being mounted by the host operating system.
Although there is some confusion as to the term, data recovery can also be the process of recovering deleted information from a storage media for forensic purposes.
A wide variety of failures can cause physical damage to storage media. CD-ROMs can have their metallic substrate or dye layer scratched off;
hard disks can suffer any of several mechanical failures, such as head crashes and failed motors; tapes can simply break.
Physical damage always causes at least some data loss, and in many cases the logical structures of the file system are damaged as well.
This causes logical damage that must be dealt with before any files can be rescued from the failed media.
Hard drive failure is very upsetting because your hard drive holds all your valuable data files. You could send your hard drive out for repair and do data recovery.
VOIPVoice over Internet Protocol, also called VoIP, IP Telephony, Internet telephony, Broadband telephony, Broadband Phone and Voice over Broadband is the routing of voice conversations over the Internet or through any other IP-based network.
VoIP phones can integrate with other services available over the Internet, including video conversation, message or data file exchange in parallel with the conversation, audio conferencing, managing address books and passing information about whether others (e.g. friends or colleagues) are available online to interested parties.
Mobile VoIP or 'Mobile Voice over Internet Protocol' is the application of voice over IP technology to mobile handsets. Mobile VoIP requires a mobile handset that supports, at minimum, high speed IP communications.
Most commonly this is using Voice over WiFi or VoWiFi, but the same protocols (typically SIP or jabber) can be used over any broadband IP-capable wireless network connection such as the various 3G standards, EVDO rev A (which is synchronously high speed - both high speed up and down), HSDPA or potentially WiMax.
VoIP allows you to make telephone calls using a computer network, over a data network like the Internet.
VoIP converts the voice signal from your telephone into a digital signal that travels over the internet then converts it back at the other end so you can speak to anyone with a regular phone number.
VoIP can be implemented in several ways, from a software program on your computer used with a headset and microphone to adaptors used with regular analogue home phones or you can use dedicated VoIP phones which look and act like regular phones but have specially designed chips to improve call quality. As VoIP technologies improve and companies dedicate more resources to bringing new products to the quickly growing market, it is almost impossible to keep up to date with all the makes, models and new developments that are available.
VoIP is used by companies to eliminate call charges between their offices by using their data network to carry inter-office calls
After extensive testing we have found the following products to be well built, reliable and practical.
There are of course many more products in the market place, unfortunately time does not allow us to review them all.
Please see the relevant section on the left for more links to dedicated review sites.
When some areas of the disk fail, the hard drive is effectively useless.
Cases like this usually require specialists to come and recover any data that might be left.
If you have made routine backups of your important data, this would be a great inconvenience to restore and install all the applications and data once more, but still recoverable.
If you were unfortunate enough not have any backups (or not recent ones), then you are in trouble. Data Recovery is a very time consuming process, and often quite expensive.
Fortunately, there are some data recovery procedures that you can try before having to resort to professionals.
Hard drive failure is very upsetting because your hard drive holds all your valuable data files. You could send your hard drive out for repair and do data recovery.If you are dealing with catastrophic data loss, Don't be fooled by so called data recovery companies making claims to recover data from any drive, regardless of size with prices that are too good to be true. That is unrealistic. In reality, if they were to exhaust every option of recovery on each drive, they would quickly become bankrupt.