Saba HiTechnologies

Computer technicians manage everybody computer problems. They participate in all aspects of computer management, starting from installing machines and networks in homes and offices, to getting rid of old machines that have outlived their use. They will attend to all computer maintenance needs like virus removal, data recovery, part replacement, and upgrade.

Computer technicians are basically divided into two groups, namely bench technicians and field technicians. The former works in the computer services facility that employs them, and repairs computers that are brought to the facility for repair or upgrading. The latter are more into providing on site help, working at the customers facility where the computer is kept.

Both types of computer technicians generally handle both hardware and software problems. The main difference is that bench technicians will have more tools at their disposal to work on the problems. Since field technicians have to move around from one place to another, it becomes difficult for them to carry too much testing equipments and repair tools with them.

Computer technicians working from the service center will provide online help ... Read More >>

IBM LTO 4 tape drive utilizes the SARS (statistical analysis & reporting system) for isolating the failures between hardware and media. The CM module saves the performance history of the tape cartridge and the performance of tape drive is held by the flash drive EEPROM (Electrically Erasable Programmable Read Only Memory) both of which is used by SARS for determining the failure’s likely cause.

With the help of SARS the tape drive can request for tape cleaner, indicate hardware’s degradation and mark media’s degradation. The capacity of the IBM LTO 4 ultrium has been increased to 800GB from 400GB of ultrium-2 data cartridge. LTO-4 IBM data tape drives can both write & read data cartridges of LTO ultrium-3 while can only read cartridges of ultrium-2. The data cartridges of ultrium LTO-4 can be ordered by utilizing the LTO tape cartridges or the 3589 machine type. The IBM LTO-4 is designed to offer several benefits and advancements over the previous technologies of backup data tapes. The cartridges have the technology to support the tape drives having high recording density and enhanced tape speeds. Its case is designed especially for unattended, ... Read More >>

The term global village has become more realistic than fictional after the widespread use of the internet in all countries in the world. What the internet does is effectively computerizing the globe. Like many other things, the internet provides good and bad things. The consensus is that the good things far outnumber the bad things. But the questions posed regarding data security are serious ones. Since more and more institutions such as military, diplomatic, and financial institutions are relying on the internet or some other kinds of network for transferring data and streamlining the process, the number of people who try to misuse such data is also on the rise. To prevent this various kinds of data security measures are adopted by network administers. A majority of the data security measures are related to software applications. Computer hardware network security options are also used.

To understand the importance of data security, consider the case of a bank that has branches all over a country. For streamlining the operation, most of the banks set up a private network or a network connected with the internet to transfer financial data. A person with sufficient ... Read More >>

One of the advantages of virtualising your server estate is that VMware or other virtualisation technology will run on a wide range of hardware, allowing you to recycle your older kit and make the most of the hardware you already own. This can be very useful if you are not in a position to make significant capital expenditures – something effecting many IT managers in the current economic climate.

A false economy

Although squeezing a bit more life out of older kit can be an attractive prospect, it can sometimes be a false economy. When you go down the virtualisation route, you should consider the costs/benefits of purchasing latest generation hardware for your infrastructure. There have been large improvements in the past few years in server power efficiencies and a small gain in power efficiency per server can reap large savings when scaled across an estate.

For example:

A 3-year-old single rack unit server consumes approximately 200W of power, with a moderate work load. If you went out today and bought a brand new equivalent server, you would find that it uses 50% of that, at approximately 100W. This equates to an annual savings of 1200 ... Read More >>

Computer network installation has become an essential prerequisite for any efficient modern-day business as it allows employees to truly work as a team by sharing information, accessing the same database and staying in touch constantly. For a computer network to give the best results, a lot of detailed planning and foresight is required before installation.

Firstly, an organisation needs to clearly define its requirements – how many people would use the network, how many would use it locally (within the office) and how many might require remote access (from a different location), how many computers and other devices (servers, printers, scanners) would be connected to the network, what are the needs of the various departments and who would be in charge of running/managing the network. It also helps if one can anticipate the direction the company would take in the near future so potential growth can be factored in during computer network installation.

The technology issues should also be ironed out in advance – hardware, software, servers, switches, back-up devices, cables and network operating systems. Make sure you have the required licenses to run the ... Read More >>

Your current desktop is 3 years old. You find your applications lagging after upgrading to newer versions, Internet Explorer takes ages to complete loading websites, the harddrive spins with occasional cranking noise, lagging display when playing games etc, etc, etc.

In this fast changing technology era, computer lifespans are getting shorter. Like it or not most gadgets “expire” after 3 years due to emerging new technologies, faster processing speeds and of cause obsolete hardware. Hence be it procrastination (I’m a victim of this) or not, it is an excuse to start hunting for a new one.

To start off, I believe there exists the blazing question of getting a laptop vs desktop. While figures show an increasing trend in laptop sales, is it really necessary to own one? Let’s discuss below – laptop vs desktop and hopefully it helps in the decision making process.

Mobility Mobility is one of the main advantage laptops have over desktops. Laptops can be used almost everywhere. In cafes, libraries, eateries and even on the move like travelling in the bus or train. In contrast like the word “desktop” suggests, is restricted ... Read More >>

Hardware graphics have come a long way. There was a time when all you would see was a hard mounted 3D display system. Now you have the graphics card to turn the data from the CPU into pictures. We have always taken for granted how this is even possible. The graphics card is the one that decides how to make use of the pixels on the screen so it will be able to make an image. Without it, we might not even have clear cut videos or pictures shown on our monitors. The computer will have a hard time processing and handling it.

To be able to play the hottest computer games, one would need a powerful hardware graphics card. Most computer game addicts know this and they will spend much just to get it. They say that the over-all game experience is quite different. For most of us, we simply appreciate the fact that we can see nice pictures on the monitor and we can play our videos. However, being able to choose the right graphics card will help make sure that the system performs at its maximum and its performance stable. Thus, knowing some basic hardware graphics knowledge can be helpful but it is definitely not a must for most of us. If you want to know about the different kinds of ... Read More >>

Video capture hardware refers to the physical device used for converting an analog or digital DVI, VGA, or video signal into a digital format that is readable by a computer. Typically, video capture hardware consists of a frame grabber that “converts” the video input and sends it over the USB, Ethernet, or PCI Express bus. This article will cover all three types of these devices and weigh their benefits and disadvantages.

USB video grabbers are small external devices that plug into the USB port on the capture computer. Generally speaking, they work with Windows, Mac, and Linux machines and accept VGA and DVI inputs. The advantage to using a USB-based frame grabber is that they are compact, easily transportable, and easy to switch between different computers, and work with desktop as well as laptop machines.

Ethernet frame grabbers, similar to their USB counterparts, are also external yet generally larger in size. They use the common RJ45 port for connection and, since the introduction of Gigabit Ethernet, are able to capture video at much higher frame rates than USB grabbers. Furthermore, Ethernet frame grabbers can be installed in a remote location on ... Read More >>

Are you a power user? By that, I mean someone who must have speed, whatever the cost. Perhaps you have to deal with monster sized files. Maybe you do video editing, or graphics work. Does your passion for a certain game consume you?

If any of this is true for you, then you may want to consider a motherboard upgrade. Recent speed enhancements make this “major surgery” attractive.

Here are the items you’ll be looking to gain: PCI Express slots, SATA II, an extra RAM slot; and for the gamers, SLI or Crossfire capability. Not to mention your new board could handle a dual core chip. All of this is available for under $150.

What kind of increase in speed could you expect? There are some astonishing numbers on this. Your old PCI slot could handle data at 133MB/s. The new PCI Express can deliver 2.5GB/s! Or consider SATA II for such tasks as connecting an external hard drive. That USB II port you’ve relied on has a throughput of 480MB/s. An SATA II gives you 3.0 GB/s!

For gamers, a two-GPU system is the doorway to an almost unbelievable level of realism. The two competing systems, SLI from NVIDIA, and Crossfire from ATX, require SLI or ... Read More >>

There are a variety of choices and options available when deciding on a printer, which can make the process difficult and confusing. In order to make sure the printer you purchase will meet your needs, it may be best to determine your requirements in advance and then compare them to printers to search for a good fit. In this article we will examine several possible areas, to demonstrate some things to look at when evaluating printers, and see how they compare to the performance of the HP LaserJet 4050t printer and HP LaserJet 4050t toner.

Speed, measured by printer manufacturers in two areas, is an area that many people focus on. The amount of time between the request to print and the first printed page is completed is the first area we will measure. The 4050t printer completes this process in 15 seconds after the print request is submitted. The number of pages the printer can print in one minute is the second measurement for speed. This model can finish an average print job rather quick, with a time of 17 pages per minute.

There are a variety of ways a printer can be connected to allow printer, so connectivity is a good area to check before purchasing a printer. ... Read More >>