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Things That A Computer Technician Should Have

There is an old saying goes like this: If a workman wishes to do a good job, he must first sharpen his tools.  With the working tools as complete as you can collect, your job can be done more efficiently.  As a network technician, there are generally ten items you should own, and you can also prepare a network installation tool kit for all these items.  Firstly, the hand tools like screwdriver is a must for you, and the screwdriver should at least be one large and one small type for different purposes.  Besides, the ESD wrist strap, which is the one that mostly forget by computer service technicians but at the same time, the most important item to prevent the electrostatic discharge damage on components.  

The USB flash drive, of course, is also a must-have item in your tool bag. But before you put your USB in your bag, you should first copy a virus removal tool in it so that you can solve the malware infection problem when the internet is unable to connect.  Meanwhile, a set of USB keyboard, mouse and network cables are needed for testing out defective input devices when you are troubleshooting.  The wireless router is also a convenient tool when you are solving the network problem, especially for home wireless routers problem.  

What's mpre, a PC power supply can prevent you from having to return to the site to perform a simple power supply installation.  A flashlight which can eleminate frustration and make you do the job easier to perform is also important to your network installation tool kit.  At the same time, tie wraps plaly the role of  organizing every cords and cables neatly, which can make you look more professional.  Last but not least, the portable air compressor is needed to have for cleaning dirt and dust on computers.  

How Does Stylus Work on iPad?

       In computing, a stylus pen is a small pen-shaped instrument that is used to input commands to a computer screen, mobile device or graphics tablet. With touch screen devices, a user places a stylus on the surface of the screen to draw or make selections by tapping the stylus on the screen. Pen-like input devices which are larger than a stylus, and offer increased functionality such as programmable buttons, pressure sensitivity and electronic erasers, are often known as digital pens. For iPad and other touch screen devices, Apple designed them hoping to excel at reading the touch of the human hand, so it doesn't promote the use of a stylus. Nonetheless, many people who want to take hand notes or draw have demanded one, so other companies have produced them. These styluses are designed to function on Apple's patented touch screen.

       For a stylus to work on the iPad's touch screen, stylus for iPad must conduct the electrical current from your hand to the device. To do this it must be constructed from conductive material like metal. Most models have a soft material like conductive foam at the tip, making the writing smoother and less likely to scratch the screen's surface. Since Apple's touch screen technology only reads electrical currents and not pressure, you won't be able to use touch sensitivity in your sketches, notes or drawings, although some apps claim to mimic it.

Easy Steps for Making Ethernet Cable (2)

Once you make sure the wire cable is complete, you can untwist the pairs for laying flat between your fingers.  If you are looking for easier handling, you can cut the wires at 19 mm long from the base of the jacket.  Then, arrange the wire that based on the wiring specifications you are following.  Next is to press all the wires flat enough and parallel between your thumb and forefinger to verify whether the color is in the correct order or not.  To ensure the working condition of the cable, you have to check if the wires are cut even and clean. This step is vital because the wrong cut may cause the wire not to make the correct contact inside the jack and lead to guided cores inside the plug. 

Before the further actions, remember to prepare yourself an Ethernet cable tester.  You will know the purpose later.  As you push the flat and ordered wire into the RJ-45 plug with the flat surface of the plug, you have to notice if the white and orange wire is on the left at the jack.  Besides, you should also be able to see a wire located in each hole at the bottom right.  Before you move on to the next step, remember to verify if the sequence is correct before it crimping.  Now, you can squeeze the handle firmly to make sure the wired plug is placed into the crimping tool well.  Once you complete the step, the handle will reset to an open position.  After you repeat all of the steps mentioned above with the other end of your cable, you can test it to see if it works in the field.  Generally, an Ethernet cable tester is required to help you out.  It can help you to detect the information, and a simple handy LAN tester is ideal for testing connectivity pin to pin effectively. 

 

Easy Steps for Making Ethernet Cable (1)

The Internet plays an important role nowadays, and if you are interested in building Ethernet cable by yourself, the steps below are useful and understandable for you. Before you have further movement, you have to prepare Cat 5 cable, which is a twisted pair cable for carrying signals. This type of cable is common especially for computer networks. Once you prepare the quality cable, you may also need specific network installation tools for further working.

At first, remember to unroll the required length and add extra wire for additional purpose. Then, remove the outer jacket of the cable carefully, because you may nick or cut the internal wiring when stripping the jacket. In order to avoid the careless accident, you should prepare a complete network installation tool kit beforehand.  Then, you can cut the cable lengthwise with snips from yourself toward the open end for about an inch. It reduces the risk of nicking the insulation of the wires. Next, inspect the newly revealed wires for any cuts that expose the copper wire inside because the exposed copper wire will lead to poor performance, so it is important to make sure the jacket for all network cables remains intact.

The Latest technologies Combine with High-Grade Equipment!

Printed circuit board (PCB) is the simplest commercially produced electronic devices. PCB, called Printed wiring board (PWB)or Etched wiring board, is adopted in the mechanically support and connect electronic materials which used the conductive pathways, tracks, etc.

 

According to the recent news, it indicated that PC boards play important role in the related cases.  PCBs provide themselves well to mass production.  It not only can reduce the total cost of electronics, but also can be created, produced with parts, and soldered by itself.  The board is very steady and reliable; thus, it always is used in all electronic goods and productions from portable music players to specialized equipment.  However, someone said that a printed circuit board was found from a dissembled cell phone. It may be designed to be detonated by a cell phone.  What will be happen?  Maybe it deserved to discuss this issue.

 

Nowadays, most people become to concern about the environmental safety.  Therefore, PCB manufacturer and supplier have improved the disadvantages of the past time.  They try to find other substitute to replace the use of etchants, solvents, various metals and corrosive material and chemicals.  It is good to have further development for Printed circuit board.

 

The Era of Industrial Panel PC

The panel PC is actually a type of industrial PCs, wherein an LCD display is placed in the same enclosed space as the motherboard and other parts. These are characteristically panel-mounted and at times also have touch screens for simplifying user interaction. Most of the industrial panel computers have a basic design idea of providing a restricted environment for the installed electronics in order to endure rigors of the factory floor. The electronic components are always chosen in terms of the capacity to run at cooler temperatures than other regular components. Sturdier construction as compared to the typical office computer provides enhanced durability to these PCs.  

The invention of the industrial PC comes from the idea of computers, which has changed our life in a great deal.  Computers are evolving from one day to the next with many models, and the panel PC is one of the latest in the market.  It shows up with a CPU board, touch screen features all in a compact and well integrated model that is hard to resist.  A flat panel PC is the one that uses a flat screen monitor for visual purpose.  As for the operating system of the panel PC is excellent. Many of them support XP embedded and windows CE. As a result, the functions of the device will be at peak efficiency. 

Of course, there are many types of panel PC, and the fanless panel PC is one of the most general types.  This panel computer is well-designed and is technologically advanced.  Their sleek appearance makes them very attractive. These panel PCs offers high-grade performance in the long run. The money you invest in it is quite low compared to its returns.  The front panels of the PCs are sealed along with their touch screens, so as to protect them from dust and water. The external display is provided with a VGA connector for its power supply. The PC comes with added features required for several industrial applications. 

Industrial computers come with various form factors such as standard 19-inch rack-mounted, panel-mounted, wall mounted, floor-post mounted, yoke mounted and so on. All form factors are designed to provide superior protection from harsh industrial conditions. Some form factors provides superior cleanability by eliminating the ledge.  Industrial designs usually offer single-board computers and backplanes for greater repeatability. However, the majority of industrial PCs are manufactured with COTS motherboards.

 

 

What is an OPC Server?

An OPC server is a software application that acts as an Application Programming Interface, also known as API, or protocol converter. OPC was designed to provide a common bridge for Windows based software applications and process control hardware. Standards define consistent methods of accessing field data from plant floor devices.  An OPC server for one hardware device provides the same methods for an OPC Client to access its data as any and every other OPC server for that same and any other hardware device.  The server will connect to a device or a data source such as a database or User interface, and translate the data into a standard-based OPC format.  Once an OPC server is written for a particular device, it can be reused by any application that is able to act as an OPC client.

This method remains the same regardless of the type and source of data. The aim was to reduce the amount of duplicated effort required from hardware manufacturers and their software partners, and from the SCADA and other HMI producers in order to interface the two. In fact, the OPC is all about Open Productivity & Connectivity in industrial automation and the enterprise systems that support industry. There are currently seven standards specifications completed or in development, and all of the OPC servers provide information that is valuable to the enterprise.  Once if the information is improperly updated, it could have significant consequences to plant processes.

OPC servers provide a method for many different software packages to access data from a process control device, such as a PLC or DCS. Traditionally, any time a package needed access to data from a device, a custom interface, or driver, had to be written. The purpose of OPC is to define a common interface that is written once and then reused by any business, SCADA, HMI, or custom software packages.  The value of OPC is that it is an open standard, which means lower costs for manufacturers and more options for users. Hardware manufacturers need only provide a single OPC server for their devices to communicate with any OPC client. Software vendors simply include OPC client capabilities in their products and they become instantly compatible with thousands of hardware devices, and users can choose any OPC client software they need, resting assured that it will communicate seamlessly with their OPC-enabled hardware.

 

Advantages of Solid State Drive

Solid State Drive has certainly changed the way data is stored. It is undoubtedly revolutionizing memory device that is most preferred by the IT industry. SSD is far more improved version of the HDD. They have more resistance power against shock and unnecessary physical temperature. These storage devices are far faster that the Hard drive. It offers a wide range of advantages, one being in terms of speed of Windows as compared to conventional hard drive. It is important to see to it which operating system you install on your computer as the state drives word different on ordinary hard drives.

With the help of solid state drive, the speed of the conventional hard drives is slow as compared to the state drive. This will increase the speed of your computer and you will find it easy to assess the data at a fast rate. Windows support different command which removes dirty blocks and rewriting the valid data when the delete command is received. It is also important to install an ideal SATA to get the best performance out of your computer. It is kind of hard disk which uses advanced technology to ensure that your Windows performs faster than normal. This performance is much better than the older versions of SATA. It includes a few extensions to the command set in the area of data and command queuing, and the enhancements are geared to improve the streaming of videos.

The best part of these drives is that they come in small sizes with incredible speed. They are reliable and long lasting. You can store any critical data in it efficiently. Its outstanding performance and speed have made these drives really popular amongst IT field. This hard disk is the best option than any other conventional hard disks. If you are really tired with the slow performance of your computer machine, then it will be the finest option to install solid state drive in it. This is similar as the conventional hard disk but offers optimum performance. These drives have been playing the vital role in taking the storage concept to the next level.

How to Choose a Good SSD?

It is not difficult to find that the price of the high efficiency computer device, SSD is higher than traditional hard drive.  But, with the advantages of less power usage and high data transfer, it is hard to deny that buying an SSD to upgrade your computer is a good idea.  So, according to the experiences from my friends and myself, I’m here to provide some simple advices as tips.  Let’s make the money worth spending!

First thing you should notice on the SSD, or solid state drive, is the capacity.  Normally, the overall capacity of the solid state drive is less then the traditional one but averagely ranges between 32 and 300GB.  Different capacity controls different performances of the solid state drive.  The capacity is linked to the number of NAND chips on the drive, in this way; a 240GB solid state drive will probably have double number of NAND chips as a 120GB.  Obviously, it allows the drive to spread out the read and writes of the data between the chips and then increase the performance effectively.

The second key that impacts the solid state drive is the controller and the firmware.  Some of the manufacturers produce the multiple controllers that available for use with solid state drives.  The reason why controller matters is because it also determines the overall capacity for the drive based on the number of channels for NAND chips.  With the technical factor, you should find yourself a company who is familiar with these or maybe ask for some advice from the clerks.  It usually helps a lot. 

Then, the write and read speeds is also as important as the other two.  Since the SSD drive provides faster speed over hard drives, the speed of writing and reading should undoubtedly be one of the major keys to pay attention to.  There are two types of read and write operations, which are sequential read and write speeds as well as random data access.  The speed is usually a basic measure for comparing SSD drive because it partly has something to do with the data, which can also be influenced by other sources.  

Others elements for choosing a solid state drive like the interface, write cycle and TRIM / Cleanup should be considered as well.  The interface on the solid state drive is called serial ATA, and now there are three types of the interface, that is, SATA 1, SATA 2 and SATA 3.  Older SATA interfaces will offers strong performance especially when compared to hard drives.  In words, do lots of homework before you buy one is the top priority, and also the best way to make your money worth spending on this latest technology product.

 

Why Do We Use the Solid State Drive?

What is the first thing that most of the computer guy would mention when people are talking about a modern laptop?  The SSD drive will likely be the first answer for the question.  In fact, the hardware has been transformed into a very different format in recent years.  However, the differences between a traditional hardware and a solid state drive still remain ambiguous for most of the people.  So, the more you know about the solid state drive, the better laptop you can get. 

Compare to the traditional hardware, the solid state is built out of semiconductors and chips.  The primary storage medium is though semiconductors rather than a magnetic media, which is used in traditional hard drive.  With the use of non-volatile memory chips, the solid state drive and the flash drive are quite similar at some point.  However, the form factor and the capacity of the drive are the keys to tell the differences.  In words, the flash drive is mainly designed for external computer system while an SSD is to replace the traditional hard drive.

Before you purchase your ideal SSD, you should know the reasons why you should buy one.  Firstly, the SSD drive provides less power usage and faster data access.  The less power usage means that you will be benefited from the power saving while using the laptop.  And since the solid state drives can show highly performance for computer system, they can offer higher data transfer rates than the traditional hard drives at the same time.  With these two main merits, the reliability of the computer system is equally higher.  You will feel more free and comfortable after using the SSD.