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Guide to Buying a Desktop Computer

With the rapid pace of technological a CD-R drive, you can record your own
developments, nothing has become as data and music CDs, and with a DVD-R
ubiquitous as the computer. Everyone's drive, you can burn files in a DVD
got one. And they are used for all manner format, allowing you to store movies and
of endeavour, by people of all walks of data in far greater quantities. The CD-RW
life. So, do you simply buy the computer (DVD-RW) drives allow you to use
that someone's selling? Or do you do some re-recordable media. Your decision will
homework and figure out what detailed depend on what you want to use your media
specifications are going to make some drives for and what you want to store.
difference to you? At au you can compare Other removable media will possibly
the prices of a wide range of different include flash card storage, which is
computers from different vendors and of usually plugged in via the USB ports on
different specifications. This guide will the computer. MONITORS For a detailed
help you find what you're looking for. explanation of monitors, please see the
Mac or Windows (PC) At the outset, you article on au dedicated to Monitors. The
need to decide what you are going to use monitor for your computer is integral to
the computer for. This will help you make its function and aesthetics. If you are
the fundamental decision of whether you working in graphics you may want to stay
should go Mac or PC. Although, with the with a CRT monitor. However most bundle
advent of the dual core processor (an offers these days are supplied with LCD
Intel chip now used by Mac) the monitors, which have the advantages of
differences are narrowed a little, there smaller space requirements, use lower
are still some choices that can help you energy and offer wider screen images.
favour one system over another. However they generally are more expensive
Historically, Mac computers have a (although prices are dropping everyday),
reputation for greater stability that can frequently be not as bright, have
comes from a more robust operating system limited viewing angles and sometimes
than Windows based computers. Largely for require a digital interface connector.
this reason, Macs have been the computer For graphics intensive work, LCD screens
of choice for the graphic design do not have the same capacity to render
industry, the music production industry colours in gradients as CRT monitors.
and the video production industry. This Once again, size matters. Bigger screens
has prompted the software manufacturers cost more than smaller ones. VIDEO AND
to make professional software packages SOUND For a detailed explanation of video
for these disciplines that favour the Mac cards, please see the article on au
operating system. Although they have dedicated to Video Cards. The interface
packages supporting the Windows operating between the CPU and the Monitor is
system, they are often less capable. provided by the video card. One of the
Consequently, if you are engaged in these basic decisions you need to make is
industries and need your computer for whether you require a 3D or 2D card.
this type of work, you should consider Video cards come in two different types:
Mac. Mac computers appear to attract those that use an AGP (accelerated
fewer viruses and software malfunctions graphics port) on the computer
than do Windows based PCs. On the down motherboard and those that use the PCI
side, there has always appeared to have bus. Data transfer rate is critical to
been limited software support for Mac video performance. Faster video cards use
systems. Another decision that may guide an AGP, and this proves a faster data
your choice is the aesthetics of the transfer than PCI cards. Most video cards
computer. If you have limited available also have their own video memory
space, there is nothing quite like the installed on the card, a feature that
iMacs or the mini Macs for space saving. increases a computer's memory
iMac's all-in-one desktop units are performance. Today, these memories are
compact and complete with all the often 128M or 256M, and can be more in
connectivity you need. However, the look the higher-end cards dedicated to
of other brands may be more to your sophisticated video work or gaming. Video
taste, with many models available in cards performance is also affected by
compact packages and modern colour what is known as clock speed or clock
schemes to suit practically all rate, cards with a faster speed offer
dйcor. Now that you've made that faster performance. Cheaper computers,
basic decision, you can start comparing and laptops and notebooks, have an
the apples with apples.MacWindows XP integrated graphics chip included in the
HomeWindows XP ProfessionalThe Components motherboard instead of a discrete video
of Your Computer The two factors that card. This type of configuration is not
determine the price of your computer are as powerful or as fully functional as
size (yes it does matter) and speed. having a separate video card, which can
Either or both of these two dimensions allow more comprehensive gaming, the use
are a factor of practically every of multiple monitors and faster and
component that makes up the machine. better rendering of images. For a
Naturally the highest price tags go with computer to reproduce the sounds recorded
the combination of biggest and fastest. in games, movies and music products it
CPU The heart of the computer is the CPU requires a sound card. Quality of sound
(central processing unit). You need to can be affected by the sound card your
decide which CPU you want driving your computer has installed. It's important
computer. These come from different that you know how you want to use the
manufacturers, and the current sound reproduction processes of your
development of the technology is called computer. If you are a musician and want
Dual Core, which means that there are two to record audio, then you will want to be
processors on the one chip. Dual Core sure that you have excellent
technology delivers more performance with connectivity, good midi access and at
less energy requirements. Intel and AMD least 16-bit (CD quality) audio
are the two leading CPU manufacturers, reproduction. Sound cards give you the
and they offer different products under possibilities of full cinema surround
different names. Current processing sound, and the many subtle effects
speeds range from about 1.4 GHz employed by high-end games. Nearly every
(gigahertz) through to 3.46 GHz. But it computer comes with a set of stereo
is not simply just a matter of speed. speakers. However it pays to have a good
There are other considerations. Mac listen to what you're buying. Make sure
Operating Systems have a different you listen to program that you are
architecture to Windows and will perform familiar with (take your own CD along)
many functions faster with a slower speed and compare the sound in a quiet
CPU. A dual core chip at 1.4 GHz will environment. Many speaker systems for
deliver a better performance that a computers have poor frequency response
Pentium 4 chip at 1.8 GHz. A 1.4 GH dual and are underpowered. For desktop use
core chip running a Mac with OSX Tiger, that does not involve a quality listening
will perform better than a 2.0 GHz environment this may be satisfactory. But
Pentium 4 processor running Windows. You if you want to listen to music and watch
need to decide what you want your movies for the full effect, then you need
computer to do, what your major software to consider buying a good quality set of
requirements are before you decide on the speakers. Use the search facility of au
CPU processor. However, for everyday to compare specifications and prices of
use, a processor faster than 1.8 GHz will different speaker systems. KEYBOARD AND
deliver excellent performance. As a rough MOUSE The choice of keyboard and mouse
rule of thumb, choose a Celeron for low are personal choices. Sometimes it
cost computing, a Pentium 4 for mid-range depends on what you do on your computer,
budgets, or an AMD Athlon for bigger whether you have formal typing skills or
budgets. You can compare computers based whether you're a two-finger hack. Serious
on Pentium, Celeron, Athlon or Dual Core writers may prefer an ergonomic keyboard.
CPUs by searching those specifications on Keyboards frequently have different
au and finding different vendors and clicks and responses to others. You may
brands using different processors. RAM prefer an infrared cordless keyboard and
This is where bigger definitely means mouse. You may prefer an optical mouse on
better performance. RAM is the system which you don't have to clean the
memory that enables the computer to use rollers. Optical mice have no rollerball,
its programs and swap data between the and can be used on most flat surfaces,
hard drive and the program functions. but they are more expensive. CONNECTIVITY
It's important to match the speed of the Today, connectivity is everything. Your
RAM of your computer with the speed of computer can have wireless connections to
the CPU. The more RAM you have available all of your peripherals: printer,
for your programs to work, the faster scanner, and other computers. Having an
will your computer run. Most computers onboard modem will only be really
today come with at least 256 M important if you are using a dial up
(megabytes) of RAM. But memory is a internet connection. Broadband modems
relatively cheap component, and it costs tend to be peripherals and you can
little extra to upgrade to 512 M or connect via USB, wireless or firewire. It
greater. HARD DRIVE For a detailed does pay to consider how you will connect
explanation of hard drives, please see to the internet and other peripherals.
the article on au dedicated to Hard Disc It's not always convenient to get behind
Drives. The hard drive of the computer your computer to plug something in or
stores your program files and your data. unplug it. Some sound cards have a front
As computers have advanced, so has the face panel with all the connections you
need for more capacity to operate need. The USB ports on Macs are
programs and store data. People working conveniently located. Many PC
in media fields tend to work with very manufacturers haven't caught on to the
large files and require large storage fact that it's important for some people
space. Most computers in today's market to easily access the connections to their
come with a minimum of 40G of hard drive computers. To compare the different
space. However, this can be upgraded bundle offers from different brands, and
(usually in 20G chunks) to as much as to compare the different components by
200G or more. The effectiveness of your their specifications, search the au
hard drive also can depend on its database for exactly the specifications
physical speed (5400-7200 RPM) and the you are seeking. You can compare prices
speed at which it can transfer data and vendors, and order what you need
between the computer's RAM and the hard online with a few clicks.Andrew Gates for
drive. Faster means better performance. comparison online shopping service au.
REMOVABLE MEDIA You will want to have a au helps you compare the different
CD-R or (CD-RW) drive installed in your computers from different brands in terms
computer, and or possibly a DVD or DVD-R. of specifications and accessories. You
For reading a CD ROM, all that is can also compare prices from hundreds of
required is a CD drive and for watching different brands and vendors.
DVD movies, a DVD ROM drive. However with




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