To
use the Internet effectively, it is important to have a powerful computer capable of
processing the vast amount of information traversing the Net. It is not necessary,
however, to spend a fortune. The personal computer industry is, fortunately, still at the
point at which innovation far outstrips competition. As an example, the cost of purchasing
an 256 MB random access memory module is currently about one
quarter of what it cost to
purchase three years ago. Because of rapid improvements in technology, it is wise to pay
close attention to market prices of computer systems and
component parts.
The following recommendations may seem to
encourage the purchaser to buy more computer than the average user needs. However, keep in
mind that computer technology changes rapidly, and what is state of the art this year will
seem outdated next year.
There are several key factors in making decisions
on equipment purchase. Some important factors follow, roughly listed in order of
importance.
Price is always paramount. The
general rule in pricing a computer is this. At any given time, $500 - $1,000 (or less)
buys a solid entry level machine, suitable for most personal and small business users.
$1,000 - $2,000 will buy a well-configured system, and above $2,000 will get more
than you could possibly want. For the great majority of users, a system costing from $500
to $1,200 should be sufficient. A notebook computer
will cost slightly more, but has certain advantages over desktops.
The Processor, also known as the Central
Processing Unit (CPU), is the brains and muscle of the computer. The CPU moves data
through the computer to peripherals and provides speed as well. Standard personal computer
CPUs are Pentium IV or AMD Athlon XP grade. When you buy a computer, the faster the CPU, the better.
Gigahertz (GHz) is a measure of the CPUs speed. The computer to buy will operate
between 2.4 GHz
(entry level) to 4.0+ GHz (state of the art). With increases
in processor speed, most new computers are sold at 2GHz or more. 1GHz
is equal to 1,000 MHz (the old processor speed standard). Although some factors cause
certain CPUs to run faster than their listed MHz, the general rule is the higher the
MHz or GHz,
the faster the speed of the computer.
Random Access Memory (RAM) is an
extremely fast storage area in the computer in which currently used programs are placed
temporarily. For example, if Internet Explorer is running, this means that a command was
issued to retrieve Explorer from the hard disk and store it in RAM. When in RAM, programs
run thousands of times more quickly than if run from a disk or CD-ROM. Again, more RAM is
better. Computers are routinely sold with at least 512
MB (megabytes) of RAM. Given current
low prices at least 1GB are recommended.
Sufficient Hard Disk
storage space is also imperative for an Internet-ready computer. All of
the computer programs used on a daily basis are located on a hard disk,
either locally on the computer or on a file server at a remote address. To
store basic programs needed (operating system, office suite, Internet
Explorer, time management program) to be productive in a research or
business environment requires up to 40 Gigabytes (GB) of storage capacity.
A good rule is to triple basic needs, meaning a 60 GB hard disk is
minimal. Prices today are
unbelievably low, with a 120 GB drive costing about $100 and a
200 GB drive
costing less than $200.
A fast Modem is a necessity. For
many home computers, the modem is the
link to the outside world. It is the device that connects the computer to the telephone line
that connects to the computer servers from which you want to extract data. Again, faster
is better. Standard modems operate at 57,600 bits per second. (56K). This is fast enough
to load a web page with moderate graphics in about 10 seconds.
While a fast modem is important, I strongly recommend that an Internet user
consider.............................................
Cable and DSL (Digital Subscription Line)
services are capable of running
approximately 50 times the speed of standard 56K modems are available at about $40 per
month. They are fast becoming the internet connection devices of
choice for home and business. Cable and DSL modems are sufficiently
fast to play streaming (online) music at stereo quality as well as to load a
webpage instantly. Besides having the advantage of tremendous
speed, Internet service provided via cable and DSL modems is continuous. Dial-up is not required.
While the price may be higher than standard modem connections, the speed and continuous
service features make cable modems a very viable alternative to typical Internet service.
A good Printer is an important
peripheral device for your system. Today, a publication-quality laser printer can be
purchased for about $300. It will provide output as clear as the text in this document. A
color ink jet printer can be had for as little as $60. Color ink jets in the $300 range
can produce spectacular output, with close to 35-millimeter quality. Color laser printers
cost as little as $1,000 and up and provide true color output. Take a close look at output quality
before buying a higher priced printer.
Backup devices are becoming more
feasible purchases as prices fall. As opposed to purchasing a tape backup or a
"zip" drive, consider buying a rewritable CD drive (CD-RW). A CD-RW disk is more
flexible than standard CD in that information may be saved on it, as opposed to only
retrieving information from it. The drive currently costs from $100 to $400 and individual
disks cost about $2. Considering that each CD has a storage capacity of up to 1GB, it is a
wise purchase.
Flash drives are
also becoming standard data transfer devices. Flash drives are
miniaturized drives storing from 64 MB to 4 GB and above. They are
typically USB devices and are extremely fast. For temporary storage
and data transfer between personal computers, Flash drives are becoming the
standard.
DVDs and CDs are
storage standards on home and business PCs. CDs store approximately
700 MB (about 14 songs) while DVDs store an entire movies' worth of
data. This means that with a rewritable DVD drive, you can back up
your entire hard drive with two or three DVDs. This is in addition
to the enjoyment that a user receives from being able to play full length movies
and high powered video games from CD or DVD.
Most computer systems today come packaged with a
17-inch CRT (cathode ray tube)
Monitor.
CRT monitors are the typical television set style
monitors seen on most desktops today. Seventeen-inch monitors cost as little as
$150. A 19-inch
monitor is also recommended, since prices have dropped to the $300 range. With a
17-inch monitor, an 8 ½ by 11-inch page is nearly fully
visible. Flat panel monitors are now eclipsing
standard CRT in quality and prices are becoming very competitive.
While slightly more
expensive than CRTs, flat panel monitors are
Desktop or Notebook....This
is one of the more difficult decisions to make in purchasing a new computer.
Keep in mind that a typical notebook computer will cost about 30 percent
more than a desktop. Notebooks may have smaller monitors and hard
drives, and keyboard configuration may be less than optimal. However,
the price point of notebooks is dropping when compared to desktops and
notebooks usually are configured with a more complete array of features.
For example, many notebooks now come with standard wireless (in Ethernet and
Fire Wire formats) built in touchpad mice, HDTV quality monitors, multiple
USB ports and excellent software bundles. When making your
decision, keep in mind that the primary tradeoff is price versus
convenience. A notebook can literally go anywhere runs at or faster
than the speed of a desktop. I personally recommend a notebook,
especially since I do a moderate amount of travel and DO NOT want to go
without a connection to the wired world.
There you have it. A reasonably priced
personal computer system can make the world of information on the Web
available at your fingertips. If you are a computer novice, visit several
reputable computer vendors and ask for plenty of information before making a
final purchase. While electronic superstores sell computers, dedicated
computer stores have staff trained to meet specific needs of various
customers. Another option is to bring along a neighborhood computer geek
to help you
navigate the wide variety of systems available.
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