Computers: Tips on buying a computer
Here are some tips on BUYING a computer (check other parts of this site for detailed tips on computer components and peripherals).
- Choose a reputable dealer, ideally one who has been around for a long time and will most likely be there if you run into problems. Find a dealer who makes computers a big part of his business, not a sideline. With good dealers, you'll find good salespeople who will try to find a system that best meets your needs. If you are buying from an electronics chain 9who sell more stereos and TVs than computers), ask if the computer is "grey market" equipment, which may have warranty and repair issues: warranty coverage applies only in the US, and repairs must either be sent there (at your expense) or done locally, also at the computer owner's expense.
- Tell the salesperson about your computer needs: Is it for work, school, or fun? What is your prior experience with computers, and what kind of software do you plan to use.
- Ask lots of questions...the only DUMB ones are the ones you don't get answered! And don't let anyone talk "over your head"; if a person's using buzzwords, they probably don't know any more than you! Be careful with your use of technical computer jargon, since salespeople assume you already understand, and will deal with you on a more technical level. A computer is a large investment, and you have every right to ask for all possible information. Surf the web for vendor sites to get more product details.
- You'll be safer with "brand name" companies, like Hewlett-Packard, Dell, Gateway, Apple or IBM. These companies offer leading edge technology and back it on a global level, whereas "clone" equipment is assembled in a dealer's back room and only has local support. If you are planning to move to another city, it's worthwhile if your warranty and support is portable. These days most computer hardware is branded anyway, using the same chips, motherboards, drives, and components that the big brands use. You CAN save significant money, if local support is all you need.
- Review the warranties offered for each of the computer system's components. Often, the length and terms of a warranty are different between manufacturers, and also between components. Just because a computer has a two year warranty, doesn't mean the drivers, monitor or printer have the same warranty. Sometimes the manufacturer's warranty covers only components as part of the original factory order, and not items installed at the dealer. Find out if the warranty covers parts, labor, shipping, on-site service, or what combination and for how long. Inquire about extended warranties and what they cover as well, but keep in mind in two years, you may want to replace the computer anyway, regardless of warranty coverage.
- Buy as much technology as you can afford. If there are four things you want to spend money on (all other things being equal): RAM memory, hard drive space, processor speed, and monitor size. This will save you money and effort in needing to upgrade in the future.
- Here are some tips for a good system (as of December 2005)...
Processor |
This is the brain of the computer. Currently, the
standard for computers is the Pentium processor, which
is available in several speeds: The higher the number,
the faster the computer will run. Don't get less than
1 GigaHerz. |
RAM |
This is short for Random Access Memory. Think of this
as your desktop. The bigger your desktop, the more
things you can do at once, and the faster you can
do them. Most machines are coming standard with
512 megabyte of RAM, but this is fast changing to
4 gigabytes. Go with at least 1 gigabyte today ... most
programs now are demanding it. |
Hard Drive |
This is the storage capacity of your computer.
Think of it as an electronic filing cabinet.
Digital video and digital audio (MP3) files take
up a lot of space! Most computers have at least a
20 gigabyte hard drive, and some have several 100
gigabytes! If you are downloading music or doing
any digital video or photography, anything over a
hundred gigabytes is suitable for home or small
office use. |
CD-ROM/DVD |
It looks just like a music CD, but a CD-ROM can
hold up to 650 megabytes of information! New drives
can play DVDs on your computer (with several gigs
of data, and even record CD-ROMs or DVDs. CDs
are now used by software manufacturers to make software
installs easy, so don't even think of not getting one.
Just like processors, they are available in different
speeds: 24X, 32X, 64X. |
Video |
This is what determines how information gets sent from
the computer to the monitor, how fast it will get
there, and how many colors will be involved. Most
machines come standard with several megabytes, which
is more than enough for the average user. |
Modem |
This is the unit that allows you to communicate with
the world. Most modems let you surf the Internet,
send and receive faxes, talk on the phone, and have
a personal voice-mail answering service. Most
desktop systems have modems for cable or ADSL
high-speed access, though today wireless ones
can connect you to a wireless office network
or to "hotspots" in airports and cafes when
traveling. These are often bundled by your
Internet Service Provider (ISP), not your
computer dealer, so check around. Mobile
computers (Palm-tops) have slower modems,
and are typically suitable only for email
or "texting", though big performance
improvements are due shortly. The numbers
tell you how many thousands of characters
per second you can send or receive. |
Monitor |
Get as BIG and as high resolution a
monitor as you can afford. Remember, you are
going to be looking at the screen for a long time.
The most common quality measurement of monitors is
what is called dot pitch. When you look closely at a
screen, you can see it has rows of dots called
pixels, and each pixel has a red, blue, and green
light. The dot pitch tells you the distance in
millimeters between pixels, with lower numbers
giving better picture quality. The 0.28 is pretty
much standard. Next consider the monitor size:
A 15" monitor with 800 x 600 screen
resolution is a minimum, though today a 17" with 1024
x 768 (or higher) -- you can always set it for a
lower resolution is pretty "average". You may want to consider
a flat-screen display in either Liquid Crystal (LCD) or Plasma versions,
which are also being used for the sleek new digital TV displays.
They take up very little deskspace, look real cool,
but are --for now-- more expensive than traditional (CRT)
monitors. Keep in mind the larger displays (over 22")
often used for public displays, dynamic signage,
and at tradeshows usually have the same pixel count
as a smaller display, but they do have more impact
by virtue of their size. |
Printer |
For the printer consider either inkjet or laser. Inkjet
printers are much faster and quieter, and work by
spraying ink onto paper, often in color, a huge
plus for those who work with graphics or have kids
(but be prepared for a supplies cost that can run
you up to $1 per page). Laser printers are best for
quality, speed, and low operating cost, though the
affordable ones only print in black. Supplies costs
for black & white laser printers can be in the 3-10
cents a page range. Only if you are generating multi-part
forms do you need an impact printer, since
they're loud and slow. |
- Consider a manufacturer's or a retailer's "bundled" package. Many include not only a variety of peripherals, but also bundle some office productivity or recreational software. If a bundle has MOST of the items on your checklist, you might be able to add to, upgrade, or substitute for a good price. If there's something omitted in the package, buy it right away to ensure you have full and satisfactory use of the computer system you've bought.
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