Free Download – IT Essentials & Data Recovery For Online Businesses

IT Essentials & Data Recovery For Online Businesses
Setting Up Your Business Right And Protecting Your Data

[…] Table of Contents
Chapter 1
The Beginning ………………………………………………………………………………………………….. 4
A Short History of Information Technology ……………………………………………….. 4
The Hellenistic World ………………………………………………………………………………. 5
Early Programmable Devices ………………………………………………………………….. 6
Communications and Information Storage……………………………………………… 7
Information Technology Since 1980……………………………………………………….. 8
Information Technology Today…………………………………………………………………… 9
Types of Information Tools and Media……………………………………………………… 10
Personal Computer………………………………………………………………………………… 10
Storage Media ……………………………………………………………………………………….. 11
Internet Options and Communication …………………………………………………… 13
Chapter 2
Understanding BizIT………………………………………………………………………………………… 15
Assessing Your I.T. Needs………………………………………………………………………… 15
Desk and chair ………………………………………………………………………………………. 16
Bookcase/Shelves………………………………………………………………………………….. 16
Table ……………………………………………………………………………………………………… 17
Telephone (And Phone System) ……………………………………………………………. 17
Computer and Monitor…………………………………………………………………………… 18
Printer, Copier, FAX Machine…………………………………………………………………. 20
Other I.T. Options…………………………………………………………………………………….. 20
All Those Bells And Whistles; Do You Really Need Them? ……………………. 21
Getting It Cheap……………………………………………………………………………………….. 23
Chapter 3
Getting Organized …………………………………………………………………………………………… 25
Setting Up Your Workspace ……………………………………………………………………… 25
Organizing the Worktop ………………………………………………………………………… 25
Peripherals and Office Supplies …………………………………………………………….. 26
About Wireless Technology……………………………………………………………………. 27
Getting Online…………………………………………………………………………………………… 29
Dial-Up…………………………………………………………………………………………………… 29
Satellite …………………………………………………………………………………………………. 29
DSL………………………………………………………………………………………………………… 30
T1 and T3………………………………………………………………………………………………. 30
A Word Of Caution…………………………………………………………………………………. 31
Networking: The Intranet…………………………………………………………………………. 31
Sharing Printers and Programs……………………………………………………………… 33
About Sharing Programs ……………………………………………………………………….. 34
Protecting Yourself And Your Business …………………………………………………….. 37
E-mail Issues…………………………………………………………………………………………. 38
Computer Care And Maintenance …………………………………………………………….. 39
Protecting The Hardware ………………………………………………………………………. 39
Software Maintenance …………………………………………………………………………… 41

Chapter 1 The Beginning

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When people hear the words “Information Technology,” the first things that come
to mind are computers and the Internet. It may also bring up words like “network,”
“intranet,” “server,” “firewall,” “security,” as well as more arcane expressions such
as “router,” “T-1,” “Ethernet,” or the mysterious and exotic-sounding “VoIP”
(pronounced “voyp”).

In fact, information technology is all of these things, and more. It’s hardly new,
however. Information technology is as old as the brain itself, if you think of the
brain as an information processor. As far as I.T. being a science, even that goes
back as far as the earliest attempts to communicate and store information.

And that is essentially what information technology is: the communication and
storage of information, along with the ability to process and make use of the
information stored.

In this chapter, we’ll begin with a brief history of I.T., what it
comprises today, and the different major types of I.T. systems available today.

A Short History of Information Technology

As human societies have grown in size and complexity, so has the need to collect,
store and transmit information.

While it could be argued that brains represent a
form of “bio-information technology,” the Greek word “ ” – from which we
get the word “technology” – really refers to scientific or mechanical knowledge,
particularly that which involves the use of tools.

Therefore, we’ll begin our journey
with human’s first attempts to record and transmit knowledge through mechanical
means.

might think of as “information technology.” Using a combination of tools that
included manganese “crayons” and clay that was colored with various pigments,
early humans left these images on the walls of a cave near Lascaux, France and on
cliffs in the Algerian Sahara.

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These have been dated as being approximately 18,000
and 8,000 years old respectively. Unfortunately, there is no way to be certain
exactly what message was being communicated (a problem our own descendants
15,000 years from now may very well encounter!)

Since the images depict animals that were commonly hunted at the time, and given
the importance of game animals to a hunting-gathering culture, it’s possible that
such images were attempts to present information about such game, or part of a
rite designed to ensure a successful hunt.

The invention of writing systems – including pictograms such as hieroglyphics,
alphabetic writing and “syllabic” systems – seems to have taken place almost at the
same time as the development of agriculture.

Agriculture introduced such formerly unknown concepts as land ownership, advanced trade and the accumulation of
wealth, which in turn led to more complex societal structures. As you might expect,
this necessitated more detailed and efficient record-keeping.

Alphabetic writing has a substantial advantage over pictograms (hieroglyphs), because a relatively limited
number of symbols (letters) can be used over and over in infinite combination to
communicate nearly anything. (As you will see later, modern I.T. uses only two of
these symbols!)

Preserving and storing such information posed certain challenges; information
either had to be inscribed on stone or clay tablets (which were heavy) or animal
skins, wax tablets or papyrus (which weren’t durable).

The Hellenistic World

The Classical Greeks were the first people of record to attempt to find scientific,
rational explanations for natural phenomena. Some of the earliest proto-computers
known were mechanical devices developed by the Greeks.

One of these was a form of abacus (which also developed and was used in ancient China). The device
facilitated and simplified mathematical calculation.

Early Programmable Devices

By the time the gradual break-up and fall of the Roman Empire was complete in the
year 476 C.E., scientific and technological advances in the Western world had
ground to a halt.

While much of the scientific knowledge of the Greeks was preserved by Irish monks and Arab scholars, it wasn’t until the fourteenth century that principles of engineering were rediscovered and applied to information. The
first of these was of course the printing press. Although the concept of movable
type printing had been developed in China some four hundred years earlier, it was
Gutenberg’s device in 1447 that revolutionized communications, making it easier
and faster to record and disseminate information than ever before.

The first truly programmable device would not come along for another 354 years, however.
The Jacquard Loom of 1801 was a product of the Industrial Revolution. This
invention used a series of specially punched paper cards that functional as
templates, allowing for the automatic weaving of highly intricate patterns.

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Those punch cards became very significant to computing in the 1950’s, 60’s and 70’s.

The next development was Charles Babbage’s “Analytical Machine” – a fullyprogrammable computer that unfortunately was never actually built. Babbage worked on designs from 1837 until his passing in 1871.

This steam-powered mechanism would have also utilized punch cards, with a central processing unit
(CPU) and a form of memory storage in the form of a system of pegs inserted into
rotating barrels.

The Analytical Machine would have been capable of storing 1,000 numbers of up to
fifty digits each, and perform six different mathematical operations, including the
calculation of square roots.

Babbage’s ideas were incorporated into early electronic
computing devices being developed in the late 1930’s and 1940’s, although not all
of these were actually programmable.

The first truly programmable computers – able to store and use information – did not come into common use until the 1950’s,
and yes – made use of punch cards (those born before 1965 may remember
playing with them).

Communications and Information Storage

Other developments related to information technology involved major advances in
communication, such as the telegraph – which was really an electronic
improvement on ancient methods such as drums and smoke signals, and later
semaphore communication.

The first telegraph was actually built in 1809, but the
technology matured during the mid-nineteenth century with the development of
methods whereby actual images could be transmitted electronically (1843).

With the laying of the Transatlantic Cable in 1866, communication that once took
weeks or months could be accomplished in minutes.

Further advances included the development of wireless communication in the 1890’s, and the combination of this
technology with the typewriter to create the teletype machine in the early 20th
century.

Thomas Edison was the first to come up with a way to store sound information with
the invention of the phonograph in 1877, but it was really the development of audio
magnetic recording tape in 1926 by German inventor Fritz Pfleumer that would
become a method of storing information electronically.

Magnetic tape was initially used for recording sound. The technology finally arrived in the U.S. after the
Second World War, and early computer engineers soon found uses for it.

Magnetic audio tape was used to store data by the UNIVAC I computer of 1951. […]

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