Monthly Archives: April 2017

Breaking the Computer Buying Cycle

That New Computer Smell

If you are like most people when they go out and buy a new Personal Computer you probably get excited when you take it out of the box, turn it on and marvel at how fast it runs. When a computer is new it always seems to run faster and boot up quicker than your old computer. The applications and games seem to run without any slow down and when you get on the internet the pages load instantly on the screen, and you can quickly surf from one website to another. Overtime though, your computer can slow down and not run as quickly as it did when it was new.

This slow down can occur for a variety of reasons and when it happens it can be frustrating and spoil your computing experience. Often times when this happens it can be corrected by either cleaning up your hard drive, or running some diagnostics. Perhaps the computer has a virus and once you remove the virus, performance can be restored. What do you do though if you have done all those things and your computer is still running slow?

If your computer is running slow even after you have removed any viruses and attempted to improve system performance, it could mean that the demands you are now placing on your computer have exceeded the computer’s capability.

As we use our computers we tend to install new software applications and attempt to run more applications simultaneously. The new software we install can require greater computer resources such as more computer memory and a faster CPU, or central processing unit to run the software applications or games properly.

If you are like me you like to have multiple software applications running or multiple internet browser windows open at the same time and that can utilize greater amounts of computer resources as well. The more resources you use, the slower the computer will run.

This is a constant problem in computing because computer technology doubles roughly every 18 months. In a demand for more feature rich software applications, software developers create more resource consuming software programs. To meet the increased demands of the software, computer manufacturers continue to build faster, more expensive computers. This, in my opinion, is a vicious cycle where in order to maintain a fast and enjoyable computing experience, the computer user is forced to go out and buy a new computer every few years.

Fortunately for me I have never had to worry about that problem. I am a certified computer professional and have been building and repairing computers for over 15 years. When I want a faster computer I do not go out and buy a new expensive computer. I have learned how to break the new computer buying cycle by upgrading my computer. By upgrading my computer rather than buying new, I can simply make myself a faster computer at a fraction of the cost.

You can break the computer buying cycle too and you do not have to be a computer professional like me to do it. You only need to know a few things about computers, be handy with a screw driver and be able to follow a few simple instructions; but before you begin to think about upgrading your computer, it might be important to get a brief overview on how a computer works.

Choosing the Best Desktop Computer For You

Like a lot of people in the world today, you probably have a specific budget in mind when you buy a desktop computer. You may wonder, though, how to pick out the computer. What size and shape you need and with all the new technology out there, you may be unsure what to get. We are here to help you with this most difficult decision. Read on for some great insight into what to look for when purchasing a great desktop computer.

There are four different types of a PC user. Read below to find out which one you are. This will help you choose the best computer for you and your family.

General purpose user: a general purpose use desktop computer is perfect for those who like to make pictures, edit pictures, play games and surf the net. Depending on what you need a general purpose computer can range in price from $500 to $1500.

Power User: a power user computer is a computer that can be used to make and edit movies and videos. These types of computers also allow you to make digital designs and play mega games. With these computers you will typically need 2 or more hard drives and a great graphics card. These computers typically run higher in price due to the power behind the computer and the different running systems that it will include. A power user computer can range in price from $2500 to $3500 depending on what you will need to perform the types of work that you want to do on this computer.

Home Theater Enthusiast: Do you love movies and television? Why not get a computer that can handle all of your home theater needs? This type of computer is great for people who love to watch movies and television. Windows Media Center is on all of the windows programs including the new Windows 7. When considering this type of computer always keep in mind what type of media you will be playing. This will help you to decide the video card and how much memory and output you will need. You can also find surround sound for your home theater computer, which will make your home theater even more special. When purchasing this computer make sure that is has the proper DVD drive or if you desire you can get a computer with a blue ray player allowing you the maximum high definition display. This type computer can range in price from $500 to $1500 depending on what you need included with the great entertainment model computer.

Home Office Worker: this is a great computer for those who work from home. With this type of computer you do not need the massive graphics power as other computers unless you design graphics for your home office work and then you would want a computer with a higher graphics count. You will want a system with a dual power core so that you can multitask and get the work done that you need done. Windows has a great operating system in Windows 7 that is great for being able to multitask. The newest feature on Windows 7 allows you to have different windows open at one time and you are also allowed to have them up side by side. This will save you time and you will not have to worry about your computer crashing. Mac also has a great operating system for home office as well. A home computer can run in price from $500 to $2,000 depending on what you need and how you plan on using it.

Beginner’s Guide to Computer Forensics

Computer forensics is the practice of collecting, analysing and reporting on digital information in a way that is legally admissible. It can be used in the detection and prevention of crime and in any dispute where evidence is stored digitally. Computer forensics has comparable examination stages to other forensic disciplines and faces similar issues.

About this guide
This guide discusses computer forensics from a neutral perspective. It is not linked to particular legislation or intended to promote a particular company or product and is not written in bias of either law enforcement or commercial computer forensics. It is aimed at a non-technical audience and provides a high-level view of computer forensics. This guide uses the term “computer”, but the concepts apply to any device capable of storing digital information. Where methodologies have been mentioned they are provided as examples only and do not constitute recommendations or advice. Copying and publishing the whole or part of this article is licensed solely under the terms of the Creative Commons – Attribution Non-Commercial 3.0 license

Uses of computer forensics
There are few areas of crime or dispute where computer forensics cannot be applied. Law enforcement agencies have been among the earliest and heaviest users of computer forensics and consequently have often been at the forefront of developments in the field. Computers may constitute a ‘scene of a crime’, for example with hacking [ 1] or denial of service attacks [2] or they may hold evidence in the form of emails, internet history, documents or other files relevant to crimes such as murder, kidnap, fraud and drug trafficking. It is not just the content of emails, documents and other files which may be of interest to investigators but also the ‘meta-data’ [3] associated with those files. A computer forensic examination may reveal when a document first appeared on a computer, when it was last edited, when it was last saved or printed and which user carried out these actions.

More recently, commercial organisations have used computer forensics to their benefit in a variety of cases such as;

  • Intellectual Property theft
  • Industrial espionage
  • Employment disputes
  • Fraud investigations
  • Forgeries
  • Matrimonial issues
  • Bankruptcy investigations
  • Inappropriate email and internet use in the work place
  • Regulatory compliance

For evidence to be admissible it must be reliable and not prejudicial, meaning that at all stages of this process admissibility should be at the forefront of a computer forensic examiner’s mind. One set of guidelines which has been widely accepted to assist in this is the Association of Chief Police Officers Good Practice Guide for Computer Based Electronic Evidence or ACPO Guide for short. Although the ACPO Guide is aimed at United Kingdom law enforcement its main principles are applicable to all computer forensics in whatever legislature. The four main principles from this guide have been reproduced below (with references to law enforcement removed):

No action should change data held on a computer or storage media which may be subsequently relied upon in court.

In circumstances where a person finds it necessary to access original data held on a computer or storage media, that person must be competent to do so and be able to give evidence explaining the relevance and the implications of their actions.

An audit trail or other record of all processes applied to computer-based electronic evidence should be created and preserved. An independent third-party should be able to examine those processes and achieve the same result.

The person in charge of the investigation has overall responsibility for ensuring that the law and these principles are adhered to.

In summary, no changes should be made to the original, however if access/changes are necessary the examiner must know what they are doing and to record their actions.

How To Wisely Buy A New Computer

We are now into 2012, and your old computer just quit. Do you fix it or buy a new computer? If the computer is 5 years old or older, then probably buying a new computer is the better strategy. Many computers manufactured 5 to 9 years ago have hardware components that fail mandating replacement of the computer. Please read on to understand how to buy the best computer for your needs.

The first decisions to make in buying a new computer are very basic. By answering these questions you determine your basic purchase strategy:

1. Please ask yourself “How much can I spend?” The computer prices range from $200 to $400, $450 to $800, and $900 and up.

2. Next determine the computer type (or style) that works best for you. The types of computers are desktop, laptop, and tablet. These types of computers differ in their size, portability, and functionality. Desktop computers are the least portable. They are good for using multiple displays and heavy workloads. Laptops vary in size and portability. The big ones have 17-inch display making them luggable for occasional trips. Big laptops have most of the capabilities of a desktop but the computing horsepower is lower than a desktop in order to conserve laptop battery power. Similarly, the display is smaller with lower resolution than displays used with desktop computers. Tablet computers are the most portable. They can do a lot, but with a much smaller display. The tablets are a powerful, portable information tool that is one step above a smartphone.

3. Finally, the timeless question is: Do I buy an Apple or another computer? The other computer main selections are Windows 7 operating system or Android operating system computers. There are also Linux computers. Linux is free General Public License software operating system. Linux computers are equivalent for everyday users to Windows and Apple computers. The single difference between Linux and Windows is that with a Linux computer you only pay for the computer hardware which is a huge savings over Apple and Windows computers.

The market for Apple computers is tightly controlled. This means that Apple computers work very well with few problems. They are seldom attacked by malicious software. Everything an enthusiastic Apple owner says about their Apple is true. They are also beautiful looking computers. The down side is that they are expensive. When an Apple does malfunction, you have a big problem. If the Apple computer is under warranty, then you schedule a visit to the Apple store and wait in line to get it fixed. Also, you pay a lot for the repair.

In contrast Windows 7 computers are like the Wild West. In the Wild West anything can and does happen. There are many competing hardware and software products for Windows 7 computers. Windows 7 computers are the most malware, spyware, and virus attacked computers. Because there are more Windows computers sold than any other computers, Windows computers are the biggest target to attack. Apple computers also get viruses, but much less often than Windows computers. Windows computers can be cheap computers but they are not cheaper than Linux computers.

4. The final question is: What computer manufacturer do you like? Each manufacturer has its approach to selling computers. My preference is manufacturers that do not add fancy frills beyond the basics that come with Windows or the computer operating system. Most of the frills try to sell you something, provide functions that a redundant with the operating system, they occupy screen space getting in the way of what you are doing, and they overload and slow down the computer. For example, HP computers are like Big MACs, they taste great but come with a lot of software fat. Lenovo computers are like a bank vault. They secure your data but are miserable to fix because of the security. It seems that all computers come with an annoying “dock” or application launcher. It takes up a lot of screen space and really adds little beyond what Windows itself provides. It is always cheaper to purchase a package than to build a custom computer. Purchasing custom computer parts is always more expensive than buying a packaged system from a manufacturer because the manufacturers purchase computer components in such high volume.