• Computer,  Technology

    Database Design

    In order to manage that data, businesses become reliant on computer systems. Some are more complicated than others, but all have the same basic purpose: to help record, track and store that crucial data. But once data begins to be collected you have the question of what to do with it next? How do you figure out ways to manipulate that data in order to learn from it? That’s the basis of a good database design.

    While most business owners may understand the need for analyzing and using their data, they generally don’t have the specific skills necessary to design a useful database. That’s when they usually turn to IT professionals to tap into their unique skill set and get the help they need. And this is why having a database design business of your own could put you in the driver’s seat.

    Unlike those untrained business owners, you have the ability to look at sets of data and figure out the best system for manipulating them in order to get useful results. You do this by considering the data itself, then looking at how various data elements relate to each other and finally using those relationships to form an overall structure within which the various data sets will work together.

    It may seem matter of fact to you as an IT professional, but to most standard computer users it’s almost like trying to read Chinese. It can seem overwhelming and that can give you an opportunity to step in and offer your services as a translator of sorts, enabling business owners to better understand their own data so that they can make the most of it and ultimately make the most of their business.

    Since the interpretation of data can ultimately lead to greater profits, it’s something that all business owners should be eager to take advantage of and that should allow you to position yourself for success as well. With the proper marketing and the use of internet-online contacts, your database design business can become the go-to-solution for all sorts of business owners and before you know it you’ll be earning that income you always dreamed of.

    When you’re thinking about setting up your own business, don’t overlook the advantage that your knowledge of database design gives you. Offering your services in what is truly the heart of IT may give you just the opportunity you’ve been looking for to establish yourself in the field. So put those data management skills to good use today!

  • Gadget

    iPad Pro

    iPad Pro could include a number of Apple’s latest features. These include Force Touch, a new trackpad that is pressure sensitive. It responds to how you press on the surface. The feature basically allows a touchscreen to have a “secondary” tap, much like the right mouse button on a desktop device. This is done by lightly tapping the screen instead of pressing it.

    Force Touch is included on the updated 13 inch and 15 inch MacBook Pro with retina display and its upcoming 12 inch MacBook. It is also a feature on the new Apple Watch.

    Could a stylus also be in Apple’s future? Some think the Pro will incorporate a Bluetooth iPen stylus with pressure sensitivity. Former CEO Steve Jobs was not a fan of the accessory and execs at the Cupertino, CA headquarters have shied away from it. Yet, there is no disputing the popularity of the pen with many who utilize the Microsoft Surface Pro 3 or Samsung Galaxy Note 4.

    The popularity of Apple Pay, and its growing acceptance by retailers, should encourage Apple to integrate online Tap to Pay functionality with the newer device. This is made possible through Nearfield Communication Capabilities (NFC).

    NFC support is found in the iPhone6 and iPhone 6 Plus as well as the Apple Watch. Apple Pay leverages this technology turning the device into an electronic cash register. NFC was not included in the iPad Air 2 and iPad Mini 3.

    Additional plug-in capability could also be a nice feature on a larger device, adding flexibility with more accessories. Since the USB-C port was featured on the new MacBook launched this spring many believe the larger tablet will include it as well. It could replace or be in addition to the Apple Lightning Port. The end result would be easier access with keyboard docks and external monitors.

    So how much would a larger iPad cost? The price of the device will probably come at a premium. Think iPad Air2 with an additional $100-$200. Of course, the increase in each storage level will result in another $100 per unit.

    As Apple’s selection of products increases so do the size of the devices.

    It leads for speculation that many in the Cupertino brain trust actually do believe that “bigger is better”.

  • Computer

    Fix “Trident” Errors

    • Many end up facing the error because they accidentally delete the DLL file. If you think you’ve deleted it, the first thing you can do is retrieve it from the Recycle Bin. If you have also emptied your Recycle Bin, you can still recover the file by using a free file recovery program. Here’s something you need to know though – recovering a corrupted DLL and putting it back in the system folder could lead to much greater problems (your PC might no longer boot to Windows). So, only try this troubleshooting method if you’re completely certain that the file’s in perfect condition when you accidentally deleted it.
    • If you suspect that the issue is being triggered by malicious programs, immediately scan your entire system for viruses and malware. Do keep in mind though, that not all antivirus applications are made by reputable developers.
    • If the system crashed while changes were being made to important settings, you could try doing a system restore.
    • The error could also be caused by a faulty hardware device driver update. In this case, the best thing to do is revert to the previously-installed version of the driver, meaning you’ll have to uninstall the latest driver and reinstall the old one.
    • On the other hand, there would be instances when you would need to do an update to remedy the problem. There’s no need to choose a specific Windows update, as most update packs come with all kinds of DLL files.
    • Initialize a system file check to restore the missing or corrupted file.
    • Perform a startup repair if the suggestions above fail to fix the issue. By doing this, you’ll be certain that all DLLs in your computer are brought back to their perfectly working state.
    • If doing that didn’t resolve the problem, you might need to focus on your PC’s registry. Simply download, install, then run a registry-cleanup tool to sort out all registry conflicts.
    • As a last resort, do a clean install of your preferred OS. Take note, however, that all your files would be erased in the process. If you are willing to take this risk, then proceed.

  • Computer

    Some Tricks for Buying Computers

    The first thing to decide is whether you need a brand new computer or are willing to settle for a refurbished one. A refurbished computer can save you a lot of money and all major manufacturers have a refurbished section, where you can buy computers that are almost as good as new. While buying a refurbished computer,

    • Take care that all the software CDs preloaded on the computer are transferred to you
    • Remember that the manufacturer’s warranty will not pass on to you along with the computer.
    • Verify that there is no physical damage to the computer, especially the ports.

    The next thing to decide is whether you would like a MAC or a Windows based computer. MAC systems are more expensive, have a stable operating environment, are more secure and of better quality. MAC computers do not operate on Windows and so any game or application that is based on Windows cannot be run on a MAC computer. Windows is more virus prone, has an operating system that is not so stable and is relatively cheaper.

    If you have settled on a Windows based PC, then the next step would be to either go in for a branded, off the shelf computer or you could have one assembled as per your requirement. While buying a branded one, you could choose one with a configuration that fits your requirement. If you are assembling one, you must get the following parts,

    Case: Be clear where this will go, above or below the desk and if all the ports are accessible. It should be compatible with the motherboard and must also be able to accommodate any upgradation.

    CDs: Most standards computers include a CD burner. But if you are assembling a computer, make sure that it is capable of supporting a CD burner.

    Hard Drive: This is quite the most important part. It should have enough space available for storage and for speed.

    A Network Card should be supported by the Motherboard to allow sharing of files and connection to the internet.

    The processor is the most important part and will determine how the computer works.

  • Computer,  Technology

    Cleaning Fiber Optic Connectors

    Dry cleaning

    Dry cleaning usually removes airborne contamination. Here you need to use a reel-based cassette cleaner to clean the connector. Using medium pressure, you should wipe the connector’s end face against a dry cleaning cloth. To avoid contamination and destruction, you should wipe the end face only once.

    If you have an angled physical contact (APC) polished connector, you should be careful and ensure that the end face comes into contact with the cleaning cloth. After cleaning the device you should inspect it for contamination.

    Other than using reel-based cassettes in cleaning the connectors, you can also use single fiber in bulkhead cleaners (I.B.C) that are usually designed for both physical contact (PC) and angled physical contact (APC) polished connectors. These devices usually feed a cleaning cloth across a head while the head rotates.

    To clean the device you need to first install the device into a clean adapter then insert the cleaner tip. After doing this you should press the lever in order to initiate the cleaning process. Again you should inspect the connector’s end face for contamination after cleaning.

    Wet cleaning

    Wet cleaning is more aggressive than dry cleaning and as a result it tends to remove both airborne contamination and light oil residues. Here you need to lightly moisten a portion of a lint free wipe with a fiber optic cleaning solution.

    The solution can be 91% Isopropyl Alcohol or any other solution that won’t damage the connector. With medium pressure you should first wipe the end face against a wet area and then onto a dry area.

    If you have an APC polished connector, you should be cautious and ensure that the entire end face surface comes into contact with the cleaning wipes. To ensure that the connector is not contaminated, you should thoroughly inspect it before use.

  • Technology

    Technology Behind a Touch Screen

    Today, a capacitive touch screen works through the use of an ITO touch film that is attached to the screen. This touch film is basically a semiconductor that has been printed out using semiconductor manufacturing methods such as roll to roll processing which uses a roll to roll evaporator system to create an electronic device on a flexible plastic.

    A roll to roll evaporator system from industry leading manufacturers are able to mass produce ITO touch film that can be used on various devices such as smart phones, LCD or LED screens, tablets, and PC monitors.

    Roll to roll technology is the preferred method over other technologies such as roll to plate and plate to plate technologies due to it offering a continuous process and higher throughput than the others. That ITO touch film is then programmed using software that enables us to give our devices instructions through the use of our fingers on the screen.

    In fact, semiconductor manufacturing processes such as the roll to roll evaporator system are used for many other products too, such as solar panels, cameras, and printers.

    So now you have a basic idea of where technology came from and the technology that is used to produce the semiconductor film that is used on touch screens today. Without machines that use a roll to roll evaporator system, we would not be able to enjoy the many touch screen devices that are available to us today.

  • Computer

    Home Computer Technician

    technician.

    What kind of certification does the computer technician hold?

    Make sure that your computer technician has minimum of Microsoft Certification and that it hasn’t expired. This proves that the technician is trustworthy.

    Ask if the technician about their hourly rates, about minimum charge(for fixes that take less than an hour), and any other hidden charges!

    This is the second thing you should be looking for. Generally, rates average to around $80 per hour, but the prices change for different jobs (Cost of formatting your computer might be more than just setting up a Disk Drive.).

    Sometimes, a computer fix is just as simple as resetting the RAM (Sometimes, the RAM gets loose from it’s socket and can cause computer crashes, boot loop or hanging) which takes no more than 15- 20 minutes, what would be the technician’s charges then.

    As for hidden charges, always ask up front. Though it’s not a common practice but you don’t want to end up paying way more than you expected.

    Where did you work before, do you have any testimonials?

    Knowing where the technician worked before (Microsoft, Apple, Dell, Asus and IBM are some of the most respected companies in Computer Business) and going through the testimonials gives an idea of the quality of the work and also reduce the chances of subpar working computer technician.

    Ask if the computer technician’s service is guaranteed.

    Suppose, your computer starts to overheat and reboot within every hour. You of course want a guarantee that once the heating issue is addressed by the technician you don’t want it reoccurring within a week or anytime soon. What is their take on this? Anything less than 30 days isn’t a good deal and if say it’s 90 days make it a point to go through the fine print to read what is covered under that time.

  • Computer

    Fix CD-ROM Redirector Errors

    This is an executable driver which enables DOS programs to recognize, read, control CD-ROMs utilizing the ISO 9660 file system. It requires loading the right CD-ROM driver, normally from “CONFIG.SYS”. This exe file can specify the name of the driver and the number of sector buffers to accumulate the path table of a CD-ROM disk. The exe file can be utilized to expand memory and shows information on memory usage each time you boot your PC. It can indicate the letter you want to assign in the first CD-ROM drive.

    It is also one of the core system files. If this file has an error, your computer may experience a lot of problems, such as Blue Screen of Death or BSOD crashes. The causes vary, but normally the error occurs due to a virus. The file can be easily infected by Trojan which can be downloaded if you purchase it from unknown sources.

    Error Messages

    The most common error messages associated with mscdexnt.exe problems are as follows:

    “Cannot find MSCDEXNT.EXE.”
    “not a valid Win32 application.” or “Application Error.”
    “… has encountered a problem and needs to close. We are sorry for the inconvenience.”
    “failed.””Error starting program”
    “file not found or is not running.”
    “Faulting Application Path: MSCDEXNT.EXE.”
    “has stopped working or parameters error

    These exe error messages may pop up during program installation, while the associated software program is running, during Windows startup or shutdown, or during the installation of the Windows OS. It is important that you take note of the error message, to help you during troubleshooting.

    Causes of Errors

    The mscdexnt.exe virus is one of the common causes of errors. If you find the file located in the “C:\DOCUME~1\roger\LOCALS~1\Temp\” folder, definitely it is a virus. And if you are cautious and knowledgeable enough, you may check at the registry and look for a value “C:\Users\Reva\AppData\Local\Temp\mscdexnt.exe” in the Run key.

    When you look this up online, you would notice that some people say that this type of file is a CD-ROM redirector that lets CD-ROM access from the Microsoft application and the MS-DOS. Some say it is a type of the lunii Trojan. There are two old threads found associated to this file. Since it is an exe file, it is a favorite target of malware.

    Exes are executable files of different commands for processor performance that launches different programs and changes setup applets. Part of the executable files are those with extensions like.com,.bin,.bat, and.exe. While operating in the MS DOS environment, these files can be accessed by opening a program folder, in the Command Line Interface write the name of the file you want to access and press enter. Clicking the file twice while in windows is enough. Since this file is used to open programs, they may have malicious codes, so you need to execute them only if you trust the source and you are sure the files are safe.

    A corrupt or unstable system registry entries of system files are one of the common causes of system problem. This should be repaired right away to prevent further damage to your data, hardware and applications. A spyware or Trojan may take the name of this executable file and get registered, which will result to damage to your computer’s software system.

    Fixing Errors

    To fix the errors enumerated above, first you need to ensure that your computer is well protected against malware. The spyware can rename folders and files on the PC. Once the spyware disguises as a regular program and run on the PC, it will not just steal your personal data, but can damage your system core files seriously, which will lead to certain types of computer errors. Thus, you need to install and scan your computer right away using a powerful anti-spyware program.

  • Computer

    Optimize Your Solid State Drive

    You don’t need to defragment

    Back in the days when magnetic drives reigned supreme, defragmenting was a regular necessity to keep it performing well by keeping access times to files at the lowest.

    SSDs function very differently from magnetic drives so it needs to be treated differently. Defragmenting, for example, will have little effect, if any at all, to the drive’s performance. In fact, defragmenting might reduce the life span of SSD because the process calls for small but numerous write operations. Although Windows is preconfigured to disable automatic defrag on SSDs, this might not always be the case so you have to make sure.

    System Restore should be disabled

    Arguments abound for the advantages and disadvantages of System Restore when using an SSD. But most reports show that enabling System Restore can significantly slow down an SSDs performance and even interrupt, over time, a vital operation called “TRIM”.

    It is, therefore, advised that the System Restore be turned off but you must be aware that turning this recovery tool can make it difficult to recover from issues like install error or a bad device driver. You can, of course, use third party backup applications to make up for the risk. The good thing about disabling System Restore is it reduces write operations on the SSD which increases longevity and frees up some disk space.

    Drive indexing should be disabled

    What’s the main purpose of indexing? For faster access to what you’re searching for. It works for books, libraries, databases, and data storage. For a magnetic hard disk, drive indexing can dramatically improve access speeds but the same can’t be said for SSDs. The effects are from negligible to none because of the SSDs inherent low access times. Drive indexing, like System Restore and defragmenting, results in numerous write operations that might be unnecessary on an SSD and can even reduce the drive’s lifespan.

    Unlike System Restore, however, disabling drive indexing does not present much risk and as mentioned, only benefits magnetic drives. You can disable drive indexing by right clicking on the SSD, and selecting Properties. Deselect the box that states “Allow files on this drive to have contents indexed”. An error message may pop up but you can just ignore all of them until the configuration is complete.

    Prefetch and SuperFetch should be disabled

    Used files and programs that are used frequently are cached by Windows using the Prefetch and SuperFetch features which call for write operations. These are beneficial to magnetic hard drives but the advantages can be ignored for SSDs. Again, unnecessary write operations should be reduced as much as possible to increase the drive’s lifetime. Both Prefetch and SuperFetch can be turned off using Windows’ Registry Editor. Be cautious, though, when using the Registry Editor to avoid issues and complications.

    Run regedit.exe and then select this path:

    “HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSessionManagerMemory ManagementPrefetchParameters”.

    Right click on “EnableSuperFecth and EnablePrefetcher”, choose Modify, and then change the value to 0. The change will require a restart.

    Hibernation should be disabled

    Hibernation makes restoring your session and boot ups faster by saving the contents of a computer’s RAM to a system file named Hiberfil.sys which has a size equivalent to the size of the physical RAM. When you turn on your computer, you are back to what you were working at.

    SSDs are already fast enough to negate the benefits of hibernation and the space allotted to the hibernation file can be put to better use.

    Hibernation can be disabled by typing “powercfg -h off” in a command prompt then pressing Enter.

    Move the Pagefile to another drive

    This tweak is only applicable if you have an extra magnetic drive that you can use to store your Pagefile. Using a Pagefile calls for massive write operations which can affect the SSDs longevity in a negative way because of the incurred wear and tear.

  • Computer,  Technology

    Improving The Quality Of 3D Prints

    Center the build plate

    The center area of the build plate maintains the set build temperature while the edges of the plate get cold. The center is also wrapped and accurately leveled. Since the edges of the plates get cold with time, prints made at the edges are usually warped. To avoid this you should place the printing parts at the center of the build plate.

    Install pads

    If you have been using 3D printers, you must know that warping is one of the major problems with 3D printing. When you are able to prevent it, you will greatly improve the quality of your prints. One of the ways of combating warping is adding little pads on the areas where warping occurs. You can use any size and shape of pads, but experts recommend that you use pads that are at least 100mm in diameter and 1-2 layers thick.

    Make use of ABS glue

    ABS glue has many applications including:

    • Improving the surface finish of your prints. You only need to print out your item and dip it into the glue
    • Mending cracks on your items. This is when you don’t want to reprint or redesign your material
    • Bonding small parts together in order to create intricate or larger parts.

    To prepare the glue you need to mix ABS and acetone. There is no perfect ratio at which you should mix the two. Use less ABS to make a thinner solution. For a thicker solution use more ABS. Thicker solution is important when you want to bond or mend parts.

    Tighten the drive belt

    When the printing machine has worked for sometime, it’s common for the drive belt to get loose. This results to the dimensions of your prints getting smaller than they should. The sides of the round object also tend to be flat.

    To fix this problem and improve the quality of the prints you should tighten the drive belt. All you need to do is find a puller and fix the belts. If you are unable to tighten it, hire a professional to help you out.