Software & Hardware Support
In addition to networking support
we cover all Windows operating systems and all the most
popular Microsoft applications for software support.
If you need additional software that is essential to your
work, we will assist you in installation and give you support.
offer a full network support and installation service for
small, medium and large businesses in Egypt.
We can help you to achieve your priorities
with your computer network and structured data cabling needs,
as well as make sure your computer security is up to
Our support team can remotely administer
and monitor your network whether 5 or 500 computers.
How to install (reg) file to
your Outlook. more
We can offer a range of customised front end
database management systems written in Visual Basic, C++ and
How to Choose
How to Choose
Scanners are fast becoming a key part of a
home PC system. What should you look for when buying
A scanner is a device
that converts printed matter into digital information that
your computer can use. Using small electronic components they
record how much light is reflected off the item being scanned,
and report that information to the computer. To see a whole
image they break it up into cells called pixels. There are
four main types of scanners on the market.
most common desktop scanners resemble photocopier machines, in
that the item being scanned rests on a glass plate while the
scanning head moves underneath it.
These are like a fax
machine and move the page being scanned past the scanning
head. Sheetfed scanners tend to be less exact than their
flatbed counterparts because of the difficulty of moving a
sheet of paper without introducing distortions. It is a good
choice for handling lots of paper or photographs
These need special
attention in the scanning process because they need a scanner
that passes light through the image rather than reflecting
light off it. Because of their small size, slides also need to
be scanned on a unit with very high resolution.
scanners are the most effective and versatile type of scanners,
but they are expensive and harder to operate. Their advantage
lies in the fact that they typically use photo-multiplier
tubes which are a better quality and the original is rotated
past the scanner heads a large number of times making it much
Things to look
Generally the higher
the resolution the better the results. This is the amount of
pixels a scanner can see, usually given in dots per inch
(dpi). However, there are different ways of measuring this and you
have to be careful.
Firstly, there is
optical resolution. A scanner's optical resolution is
determined by how many pixels it can actually see, but some
machines scan several times as they move down the page. This
gives you two different numbers such as 300 x 600 or 300 x
1200. In each case the 'real' resolution is always the
smallest number - you don't get more resolution.
is interpolated resolution which does not measure how many
pixels the scanner can see but how many pixels it can guess.
Using a process called interpolation, the scanner turns a 300
x 300 dpi scan into a 600 x 600 dpi scan by inserting new
pixels in between the old ones, and guessing at what light
reading it would have sampled in that spot had it been there.
This process almost always diminishes the quality of the scan,
and should be avoided.
Unless you are going
for fine edge photographic work, where you need all the
resolution you can get, there is no need for much more than
1200 dpi. More than this takes up disk space and cannot be
seen by the naked eye. If you are printing family snaps, 300
or 600 dpi is all your will ever need. Optical character
recognition programs work at 300 to 400 dpi.
Scanners with higher
bit depths tend to produce better colour images. A scanner
looks at the image pixel by pixel and records what it sees.
However, different scanners record more information about each
pixel, and this is called its bit depth.
colour scanners today are at least 24-bit, meaning that they
collect eight bits of information about each colour, i.e. red,
blue and green. A 24-bit unit can theoretically capture over
16 million different colours. This is near-photographic
quality, and is sometimes called 'true colour'
There are now 30-bit
and 36-bit scanners that can handle much more colours, but few
software packages can handle this much detail at the
criteria for evaluating a scanner is the unit's dynamic range,
which is somewhat similar to bit depth in that it measures how
wide a range of tones the scanner can record. Dynamic range is
measured on scale from 0.0 to 4.0 and the single number given
for a particular scanner tells how much of that range the unit
can distinguish. Most colour flatbeds have a dynamic range of
High-end scanners are
usually capable of a dynamic range between 2.8 and 3.2, while
a drum scanner can manage 3.0 to 3.8. Generally, it is a good
idea to go for a scanner that offers the higher dynamic
Unless you do a lot
of scanning it is not a good idea to worry too much about
speed. But if you are choosing a commercial scanner speed
becomes very important. The best way to evaluate a scanner's
speed is to try out a few sample scans.
Scanners rely on
software to operate. Most use a standard called Twain to
control the interaction between different programs. Under
Twain, applications send their scanning instructions in a
standard format that any compatible driver software can
understand. The downside is that some drivers are not very
good and do not support all of a scanner's
How to Choose
If you're buying a printer, it's sometimes hard to decide
exactly what you need. An inexpensive inkjet? A fast laser
An all-encompassing multifunction?
You have to look at what you really need in order to make a
Deciding what kind of printer you want to purchase --
inkjet, laser, or multifunction -- can be frustrating and
confusing. Here are some of the basic questions you may be
asking. If you have any more questions, you can contact me at
How much do you want to spend?
Good inkjet printers can easily be found for under 200
EGP. A more expensive inkjet has better quality color, can
handle more pages at one time, or can take heavier paper.
If you're looking for high-quality photographs, then expect
to start in the 600 EGP-900 EGP range. If you're looking for
something that will also offer scanning, copying, or faxing,
then you should also be looking at about 600 EGP.
And if you need the speed and durability of a laser
printer, expect to begin at 600 EGP or so.
What kind of printer should I buy?
If you just need to print out documents such as letters,
copies of Web pages from the Internet or simple spreadsheets,
a low-end inkjet printer is fine.
If you need to do presentations or high quality
photographs, you want a photo printer.
If you print over 100 pages on a daily basis and don't need
color, you may want to look at laser printers. And, of course,
if you need a combination of scanner, printer, copier, and
fax, a multifunction printer is best.
Can a printer be used on a network?
Absolutely -- but you have to get a networkable printer.
Many office-level printers come with an optional NIC (Network
Interface Card) that allows you to put the printer on a network
and accessible to several employees. (NOTE: If you've got a
home network, you don't need a NIC -- you can usually access a
printer if it's connected to a networked PC or Mac.)
Should I replace my old printer?
If you are still just printing occasional documents and
family photos, and your current inkjet is doing a fine job,
there's no reason to replace it. If, however, you are
producing a great deal of family photos, and you want top
quality photographs to pass around, a good photo printer will
do a better job than your old inkjet. If you're starting a
home business, a multifunction will probably suit your needs
better as well.
Why are Printers so cheap these days?
A lot of the money that vendors make from Printers are
from selling ink and toner cartridges -- what are called in
the trade "consumables." Because printer users must
continually purchase more cartridges when the old ones run
out, they can pay more than the original cost of the Printer
within a year or so.
How to Choose a
Are you looking for a Computer Monitor?
Monitors are your window into the computer - everything
that happens in your software and applications happens via the
It is hence very important to choose a good monitor to go
along with your new PC.
Traditionally, CRT (Cathode Ray Tube) Monitors have been
used for desktop computers. However, these days, LCD (Liquid
Crystal Display) Monitors are selling like hotcakes. It's easy
to see why: LCD monitors are easier on the eyes, have very
crisp image quality and yes, they're sexy and cool. Laptops
also use LCD screens - so we're slowly beginning to see CRT
monitors being phased out.
Which type you choose depends on your requirements. If
you're a graphics professional, you may prefer a CRT monitor
because they are said to show more realistic colors. However,
the latest high-end LCDs can also give equal color quality. If
you with text most of the time, a LCD is a good choice because
the various pixels that you find on a LCD will have nicely
defined edges. This gives sharp and focus letters on the
To help you choose a monitor that'll meet your needs, this
article will step through the factors to consider when buying
a LCD or CRT monitor.
Let's first look at the various factors you need to think
about when purchasing a LCD panel display.
Panel Size: In an LCD monitor, the panel size
reflects the viewable area you can use. Again, the measurement
is made diagonally from one corner of the screen to the
opposite corner. LCD panel sizes now range from 15 inches up
to 23 inches.
Native Resolution: An LCD panel display always has a
certain native resolution. Usually you can go lower than this
resolution but the image will appear blurry. If you need to
change your monitor resolution quite often, then a CRT monitor
may be a better bet. LCD native resolutions currently range
from 1024 by 768 to 1600 by 1200.
- Viewing Angle: One problem specific to LCD
monitors is the fact that you cannot see what is displayed
if you move off to the side of the monitor too much. A
greater viewing angle is therefore typically better -
especially if you need to show presentations to others on
the LCD screen very often.
Now let's take a look at somethings you need to look out
for when purchasing a CRT monitor.
Tube Size and Viewable Area: The tube size and
viewable area of a CRT monitor is of utmost importance. The
tube size helps you judge how much room you'll need for the
monitor on your desk. It is expressed in inches measured from
one corner of the monitor to the opposite corner.
The viewable area (also measured diagonally) indicates how
much you'll be able to see on a screen. The viewable area of
CRTs can range from 15 inches all the way up to 22 inches.
Tube Type: You'll need to think about tube type as
well. Traditional CRTs have curved screens, while newer models
usually have flat screens. Flat screens improve clarity and
reduce glare, so you should think of getting one if you want
to reduce eye strain and fatigue.
Maximum Resolution and Refresh Rate: A CRT monitor's
maximum resolution can range from 1024 by 768 at 75 Hz all the
way up to 2048 by 1536 at 70 Hz. For normal home use, 1024 by
768 at 75 Hz is sufficient. Try to ensure your CRT monitor
supports refresh rates above 70 Hz - anything below 70 Hz can
result in screen flicker and cause eye strain.
Dot Pitch: The dot pitch of a CRT monitor helps you
determine how sharp a picture will be - these can range from
0.24 mm to 0.28 mm. A smaller dot pitch number often indicates
a sharper image. Of course, to the untrained eye, the
differences in image quality due to dot pitch may not be
discernable. Hence, the dot pitch may not be an important
consideration if you're not too concerned about the finest
details in your screen images.
I hope the above has helped you understand what factors to
look out for when buying a LCD or CRT monitor. One thing to
always remember when buying a new monitor - don't throw away
your old one! Re-use it for an old PC or give it to a friend
who needs one. By not dumping that old monitor, you'll
certainly help to save the environment.