Computer Science
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The loss of data can be due to various reasons such as hard drive failure, damage or its corruption, accidentally deleting the wrong files and also formatting gone wrong. However, this process is reversible through data recovery. In most extreme cases such as that of a hard drive recovered from plane crash, data recovery is more complicated than when the information is lost through a simple power outage. Data recovery is process of information retrieval .It basically means trying to salvage the information that has been lost by all means.



The process of successfully recovering data from a hard drive or a computer can be in 2 categories i.e. logical damage and mechanical damage. These two categories are named after the type of damaged that has occurred on the data.

Logical recovery of data- This is whereby the software has been damaged and the data is not readable. The software refers to the file system or the partition table. The logical data damage is usually caused by: an error by the user i.e. through deletion or accidentally formatting the data, the corruption in the operation system, power loss occurring suddenly, viruses, updates in the operating system especially those done automatically, malware and mechanical failure. Data rescue is the best for logical data recovery.

Physical data recovery -It is also known as mechanical data recovery. It is mostly performed when there is an electronic failure or internally damaged hardware. The symptoms include: clicking noise, beeping noise, buzzing noise, dead hard drive, hard drive not detected or recognized, no power to the hard drive, a slow computer and scraping noises. It is usually due to the machine or device falling, improper storage or handling of the machine, damaged hard drive from the manufacturer, power surges, liquid damage, fire damage and inadequate or poor ventilation in a room. In physical data recovery it is necessary to repair the drive so that information can be recovered from it.



The technique used in the data recovery depends on how the data was lost for example through file deletion or file corruption. It should be noted that if the hard drive has been physically damage the process of data recovery is complicated and requires a professional specialist. Although the process may prove to be costly at times , it is worth it and the best results are delivered at the end.




5 Tips About Cyber Security You Should Know

In this modern, tech-savvy age, computers are a necessity of most people’s daily lives. People use them to help manage finances, organize our schedules, do online banking, pay bills via the Internet, shop on wholesale or auction sites, etc. In many instances, people even work from home on either a full-time or part-time basis. While there are certainly many advantages to computers and technology, there are also pitfalls that users should be aware of and prepared to combat. Namely, people who use computers on a regular basis, particularly those who employ it as a lifeline and/or means of their livelihood, must be knowledgeable about cyber security and the threats that exist over the Internet. That being said, here are 5 tips about cyber security you should know.


  1. Passwords Are Necessary–You would think this goes without saying, but it is surprising how often this tip is neglected by those who are technology novices. Just as you would not leave private or confidential documents laying out for prying eyes, it is equally important to safeguard the information stored on your computer in a safe manner.


  1. Be on Your Guard–Make sure you have basic protections in place before going online for the first time. You should have a firewall and some sort of anti-virus software protection right out of the gate. Even if it is a free version or trial period software to start, you can purchase additional software and/or malware protection down the road. The point is, do not go online without safeguards in place.


  1. Run Scans and Updates–Security scans and updates are important. You should set your computer for automatic updates and allow them to run regularly. You should also run full system scans frequently to safeguard against spyware, viruses, and other forms of malware.


  1. Strong Passwords Are Important–Make certain you are choosing strong passwords with numbers, letters, and special characters if possible. Not all sites or interfaces will allow the inclusion of special characters for passwords, but it is important for added protection. It is also important to create a password, code, and/or an acronym that is easy for you to remember. You should also create different passwords for each important account and change your passwords regularly.


  1. Backup as a Lifeline–The importance of backing up your computer on a regular basis cannot be overstated. It can safeguard your system from the hackers and identity thieves who might want to steal your data. You should prepare at least 6 months of backup data and make sure the information can be retrieved if needed. Consider it a lifeline because, in technology terms, it literally is your lifeline and safety net.


In this hustle, bustle world, things can get away from us without even realizing it. When it comes to your personal information, however, it is very important that you take precautions to prevent that from happening. With that in mind, the 5 tips about cyber security presented about are ones you should know and follow.

Hiring Computer Forensics

Today, computer forensics is a developing field with plenty of practical uses. Some privately owned businesses utilize digital agents. The administrations of these experts may likewise be required by enterprises who have encountered security breaks or lawyers who are getting ready for cases.Experts who work in PC forensics typically should be confirmed in a few distinct ranges and they ought to have an inclination for various sorts of programming. To get workforce who can split PC related wrongdoings, managers may look for Microsoft frameworks design affirmation, the culmination of the Encase affirmation program, as well as information in Solo-3 and Helix programming and Logicube equipment. When you require the administrations of a PC forensics pro, don’t be hesitant to look around.

Tips for Hiring Computer Forensics

There are an expanding number of individuals who can claim to be specialists in the field. Look precisely at the level of experience of the people included, not only the organization. There is significantly more to legitimate PC forensic examination than the capacity to recover information, particularly when a case could go to court. The main issue is you will hold the administrations of a person who will probably be called to affirm in court to clarify what he or she did to the PC and its information.

The court will need to find out about that individual’s own level of preparing and experience, not the experience of their manager.The experience ought to be particularly in PC forensics, not simply in software engineering or data innovation, as aptitude with PCs does not really mean forensic ability. Ensure you discover somebody who has the mastery and experience, as well as one who will face the investigation and weight of round of questioning with their head held up. Converse with references who have seen the individual affirming in court or potentially affidavits.

Fields of Computer Science

There are plenty of fields in computer expertise. In case you are in need of a computer repair service, then find a computer repair expert. Frequently, a degree is not required to be a PC repair expert. Some do acquire partner’s degrees through theneighborhood or online universities, however, numerous decide on confirmation. This shows they have down to earth capacity. The essential PC confirmation is the Computing Technology Industry’s A+ affirmation. Others are accessible in different particular and propelled fields. On the other hand, you should be able to tell the difference between computer repair and computer forensics.

Main Fields of Computer Science

Much like a forensic science professional who manages the physical proof abandoned at a wrongdoing scene, a forensic PC expert helps with PC related violations. With computerized data exchanged day in and day out over the Internet, digital wrongdoing is on the ascent. Digital hoodlums unlawfully catch touchy information, including therapeutic records, bank directing numbers, or Visa data. At the point when security is broken through theunlawful framework, law implementation offices depend on forensic PC experts to deconstruct the digital wrongdoing scene.

PCs leave hints of computerized data that can be as implicating as fingerprints. A forensic PC specialist extricates this data from PCs with an end goal to reduce unlawful exercises. Utilizing a few strategies, philosophies, and devices, they help law requirement organizations to secure digital hoodlums. Indeed, the work performed by these experts can be instrumental in achieving criminal arraignment.Forensic PC specialists may play out the accompanying assignments: Removing and gathering proof from electronic sources, archiving and saving proof, inspecting proof, resting, examining, breaking down, and reporting discoveries. Various specialists work for nearby, state, and government law requirement offices. In case you find that you have a need for someone who can track down cybercrime for you, you can also find individual forensics expert.