How to Secure Your Computer

When talking about how to secure your computer, what comes into mind is securing it from virus but you can also secure from spyware and privacy.

Here are a few steps that you can follow when you want to secure your computer especially if you are going to use internet. The first thing that you need to do is to choose an effective operating system as per its vulnerability and security. This system should be in a position to update all files regularly. This will ensure that your files are always safe and secure.

It is also important to run intrusion detection software. This will ensure that all unwanted and unauthorized and malicious information that can harm your computer are detected on time and deleted by the virus protection system or any other application that is supposed to deal with such things.

It is important to choose the preferred web browser according to its security needs because most malware come through the web browser. It is important to disable scripts and pay attention to independent computer security analysts and crackers. You can choose a browser that has a sandbox feature like Google chrome, which protects from spread of infection.

Keep all ports closed because hackers always use port scanning to access files. Also ensure that download and install firewall which is important in giving security especially if you are using a router because it acts as a hardware firewall. The other thing that is important to download and install is software to deal with spyware. Spybot is the best option when it comes to handling spyware and anti malware. This will protect you from having malicious code in your computer.

Always go for strong passwords in your router and user accounts when setting up. This will prevent hackers from easily accessing your computer and will reduce the attacks. The other thing that will protect you from attacks is good antivirus software. An up to date antivirus will handle modern malware, including Trojans, viruses, rootkits, key loggers and worms.

It is also important to ensure that you always use trusted sources when using internet and also when downloading software.

All these steps will help in securing your computer from malicious attacks. It will save you from unnecessary crashes that will stress you out especially if you do not know how to handle these situations.

You also need to secure your computer physically, pay attention to the monitor, the keyboard and all the hardware so as to prolong the life of your computer.

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Why There Is Growing Demand for Computer Forensics

There is currently a growing demand for computer forensics because there are many law agencies that prefer find the electronic evidence reliable and also not easy to tamper with.

It is important that the forensic expert has to have deep understanding of forensic data collection, it is also important to understand the rules of evidence and a strong understanding of the documentation process. The expert should also have knowledge for servers and personal computers and system networking.  

The beginners in this field can get a pay of up to seventy thousand dollars while mid level can get up to one twenty five thousand dollars. With such pay there is not only growing demand for computer forensics services but there is also growing demand for those who want to take up this as their career.

The programs for computer forensics are available to everyone including those who have no law enforcement and even those who have no computer security background. This therefore means that anyone can practice to be a computer forensics without challenges.

Computer forensics experts are important when it comes to finding digital evidence. This makes those who already have bachelor’s degree to seek further education so as to sharpen their skills; some go as far as having a master’s degree in computer forensics.

Apart from having computer knowledge, the forensics experts must have a solid understanding of the law. They should have clear understanding of how to properly handle and take care of evidence. They should also know how to use different methods to discover and retrieve evidence. All these knowledge will enable the expert to carry out the job effectively.  The more they know about the law and computer programs, the better.

The growing demand for computer forensic experts makes the field become very competitive. It is therefore important to have as much knowledge as one can get so that you can be amongst the preferred options when an agency is looking for experts in this field. This means that apart from computer knowledge and understanding of the law, one will also need to learn some basics when it comes to public speaking, technical writing, algebra and other common courses. All these are necessary when there is need to testify and also on conducting daily activities in this field.  

Digital evidence has proved to be one of the most reliable testimonies when it comes to court cases and many other cases. Therefore there has been growing need to have computer forensics experts by law agencies who are in charge of looking for evidence for various cases.

Good computer forensics experts should have completed their internships with either bureaus, agencies or any other local professionals. Internship opportunities give the trainees hands on experience in real life situations and therefore help them in effectively conducting the work in future.

The demand for computer forensics is expected to grow even more as many law enforcement agencies continue to be formed.   In due course, FBI expects that fifty percent of its cases be handled by computer forensics experts. There will be need for large corporations, law enforcement agencies, the office of the prosecutor to employ more computer forensics experts so as to take care if the increasing investigative requirements, that keep increasing with each passing day.         

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Difference between Oracle and Microsoft SQL

There are many relational database management systems but Oracle and Microsoft SQL are the most widely used ones; others are Sybase, Microsoft Access and MySQL.

Oracle and MS SQL have many similarities but they also have differences. They have difference in transaction control, language and the way the database objects have been organized.

One of the main differences in these two relational database management systems is the command language.  Although they both use query language, MS SQL uses Transact SQL which is mainly an extension SQL which was initially developed by Sybase and used by Microsoft.  On the other hand, Oracle uses Procedural Language/SQL, as its command language.  The two languages use different dialects of SQL and they both have capabilities and syntax.

The other main difference is in their transaction control. Transaction is the group is tasks that should be used as one unit. For example collecting SQL queries, adjusting records that should all be updated at once or at the same time, if one of the records fails to update, then the end result should be that none of the records will update.

When it comes to this area control, MS SQL will perform a control individually and it will be difficult to redo any transaction that has been done especially if there are errors that have occurred during the process.  When the transaction is ready you use the ‘BEGIN TRANSACTION’ command to start the planned transaction. When it is completed, you use the ‘COMMIT’ command to end the transaction. There is the ‘ROLLBACK’ command is for discarding transaction changes and also gives a degree of protection against data corruption during the transaction.

On the other hand, Oracle treats every new database connection and a new transaction. Here commands are given as queries are executed and when there are changes to be made, they can only be made in memory and nothing is committed till such a time when there is an explicit ‘COMMIT’ statement. Once the COMMIT is given the next command starts a new transaction and the process starts all over again.

The other difference is in the organization of the database objects. When it comes to Oracle, the database objects are organized or grouped in schemas, which act a portion or subset of all the objects. The schemas and users have shared database objects, though each user can be limited to certain schemas depending on the different roles and permissions granted.  On the other hand, the MS SQL organizes all objects by database names. Users log in using permitted access to specific database. This therefore makes it easy for users to log in using their own access and therefore can be private to a certain level.

These relational database management systems may have differences but they also have similarities which make them most preferred options amongst many. In real sense none is particularly better than the other, but depending on your needs you may prefer to use one relational database management systems over the other.

It may be important to take a look at the differences before using one of these systems just to ensure that you pick what is comfortable for your use. This will help in reducing any disappointments while operating the servers. Your options can also depend on the size of the server.

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Solid State Drives

Solid State Drives (SSD) is a term used in computer literature. SSDs refer to types of memory which does not have any moving objects. Hard disk drives we use every day on our computers have a spinning disk and a moving head inside them. Even though these Hard Disk drives are ideal for daily home usage, they may produce unreliable results if a significant force is applied. Therefore in these circumstances, SSDs provide much better dependability.

As SSDs do not have any mechanical parts inside them they are ideal for field and mobile devices. Since 1990’s the military and other organizations which demanded high data reliability has been using SSDs in their equipment. Today, most of the laptops, netbooks and high capacity MP3 players are migrating to SSDs because of its benefits. SSDs are silent during operation and they are much faster than mechanical drives. Also they consume less power – which means improved battery life for mobile devices.

Few years ago consumers had a reluctance to buy Solid State Drives because of their high price. However now the price has come down to a more affordable range and it continues to drop as the competition and market maturity increases.

Along with all those benefits, there are still few negative points with SSDs. Solid state drives are still limited in their individual capacity. Even though there are no mechanical parts, the performance of SSDs can still degrade over time after a large number of re-writes.

There are also hybrid drives under development which uses SSDs as a buffer for larger mechanical hard drives. These drives provide the benefits of having access to a large capacity disk drive with much faster speed and reliability.

Advantages and Disadvantages of Solid State Drives (SSD)

The interest in SSD’s has become overwhelming, its begun a storage race with the normal HDD that aren’t quit out of the game yet but with more and more SSD’s coming into the market, it looks as if they are taking over in a big way. Let’s begin with the question of exactly what is an SSD and what are the benefits. The easiest way to explain what an SSD is, it’s a flash drive larger than the ones you place into your phone or your camera’s. The memory is much like the ones used in ram but can retain the memory without power

The SSD is totally different from RAM, in that it is made of flash memory rather than volative memory, thus bringing into existence the term ‘solid state memory’. With computer memory (RAM) when you turn off the computer it wipes the memory clear, basically its starts free and clear on startup. With an SSD, like a hard drive, it permanently stores and remembers the data you put on it. That data can be anything from an OS to a word document.

The advantages of a SSD are numerous. First and foremost the sheer speed of the SSD is the most obvious feature. There is no requirement for the disk to spin and the arm to find the exact position of the information it is retrieving. SSD’s are essential large flash drives that zip information to and from drive to motherboard. Boot-up times have been cut in half since there is no spinning involved, it’s almost as fast as our brains telling our fingers to type or tell our legs to walk. Initial performance results of the SSD were very good; however, the write speeds were its downfall, some being as low as 14bs. Another great advantage of the SSD is how silent it runs and lack of heat created through the SSD. From these benefits come additional benefits such as unbelievable lifespan and incredible reliability.

But, there are some disadvantages to the SSD, these being price and storage capacity. While we see prices dropping gradually, people are still looking to spend around $250-$1800. Size is then another consideration. We can run out and grab a 256GB SSD as seen here for around $500, but the 64GB have just gone into value in the market.

It’s easy to setup an SSD, backup your system with a disk imaging program, pull out the HD and replace it with the SSD (both being SATA of course) and restore your system. Similarly, you can do a clean install just as easily as having the HD inside the system. There are no additional cables or carriages to worry about. The solid state drive has become the high-end, highly sought after storage drive. It has quickly found a position where, if manufacturers can find the lower prices, higher storage capacity and availability, the SSD could threaten the mere existence of the HD. The first obstacle of performance was surpassed long before many knew what SSD stood for. There appears to be so many benefits to owning an SSD for business or personal use, the simplicity of the SSD lies in the absolutely break neck speed in which it completes its tasks. Quicker start-ups, incredible performance, no moving parts, less heat, longer battery life, incredible reliability and durability will soon dominate the market and possibly rid of the old HDD

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Apple vs PC

If you use a PC and are considering crossing over to Apple, you may have asked yourself severally whether Macs are really the better option compared to PCs.

There is a simple answer for this…yes they are. Mac computers are quicker and their graphics are better. They are also more user-friendly.

Below are five reasons why you should select a Mac rather than a PC when purchasing your next computer.

Macs have More Power

The government decides whether or not a machine is grouped as a ‘super-computer’ by its MTOPS (Millions of Theoretical Operations per Second). The high end Mac computer showed a rate of 17,917 and the low end showed 14,994.

More impressively, the more advanced Mac produced a score of 60,750 compared to just 32,000 from the top PC.

Macs are More Fashionable and Lighter

The exact components of the hardware in a Mac have more efficiency and are more compact than the ones in a PC, which makes Macs a lot lighter.

Applications in Macs are Better

The software found on a Mac is much more advanced than the one for a PC. It is so much simpler and enjoyable to arrange your photos with iPhoto.

You are able to build home videos in a few minutes using iMovie. You are even able to compose your own music utilizing GarageBand. All these apps are provided with your Mac from the beginning.

If you love taking photos or graphic design, Mac has software which is much more superior to any PC program.

The Battery Life for Macs is Longer

The latest MacBooks have an enhanced battery which can last for even 9 hours on one charge! A PC laptop lasts a maximum of 3 hours when it is not plugged. This ensures that one can work remotely without any problem.

Macs are Longer Lasting

MacBook Pros are now built from one piece of machined aluminum, rather than having a bunch of various parts linked together.

This highly decreases the chances of a section breaking or bending, which makes the laptop much stronger.

What to Consider When Buying a Computer

  • Consider what you require from the computer. These are the basic procedures which the computer is required to carry out.

Also think of any extra features you may want to have on the new computer. You can then select a computer which meets these needs and which is within the budget you have.

  • Computers have different LCD screen sizes at different price points. Normally, we would prefer a large one. However to facilitate portability especially if you buy a laptop, a small LCD size would be ideal.

Conclusion

Now you have this vital information and you can be able to answer whether Apple is better than PC. The above vital points will assist you in making a decision.

All in all, Macs are machines which are more powerful, compact and their applications are better. These machines can also last longer as they are highly durable.

If you are still unable to make a decision, you can browse the internet to study the different sites which offer computers for sale and study their features.

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