Low-voltage Cabling, the Whats and Whys

With most forms of communication going wireless these days, many ask the question, "Why should I have a wired network?"  There is no doubt that a majority of data communication is transmitted through the air waves these days to and from devices such as smart phones, tablets, laptops and even many printers.  However, there is still a very strong need for wired networks and for particular devices and technologies to be connected via ethernet.  Although wireless networking is a cost productive way to connect many devices to a single router, it isn't always the most reliable.  Since wireless signals are broadcast through the air, interference and interruption are always a possibility, due to causes such as hacking, inclement weather, and the path that the signal must travel being blocked or lengthy.  These issues arise mostly when dealing with business IT, where network consistency is a must.

Businesses usually (and should) have in place some form of server, and some implementation of a backup system and disaster recovery plan.  These systems require what is known is a dedicated connection, usually from an ISP that provides T-1 or similar service, that has no downtime.  Downtime in such a scenario can be very costly for a business as it could totally halt productivity for the time that the network is inaccessible.  With the aforementioned issues that wireless networks can have, it makes sense that these systems would be wired to prevent downtime and/or network interferrence.  This is where we come in.

Data and voice cabling, also referred to as low-voltage cabling, must be performed by licensed and insured individuals, and sometimes requires that a building permit is pulled to perform the work.   It's not as easy as simply plugging your computer up to the wall, the cabling part is what enables an actual network connection to go from your network equipment to the wall plate or jack so that it is live.  It's a similar concept to electrical work as well, where the light switch will not function without an electrical current and fixture attached to it.

We at Vital Computer Services are fully licensed and insured low-voltage electricians, with heaps of experience in the industry.  We are able to provide both residential and commercial data and voice solutions, and coupled with our IT specialty, can provide what is called system integration.   We would love to have an opportunity to help you get connected!

PC Terminology -- What Does It All Mean?!

Every industry has its' industry specific lingo, and the world of computers is no different.  Infact, many abbreviations and acronyms that are commonly used in conversation have originated from computer talk, or a technologically related field.  If you're not one of those people who's computer is symbolically (or sometimes physically) attached to your person, then all the talk can seem confusing.  Nothing to worry about however, as we hope to clear the air and reveal the secrets behind tech talk, and how you will be able to not only understand it, but even implement it into your own brain database!

1.  Operating System:

An operating system (OS) is software, consisting of programs and data, that runs on computers, manages computer hardware resources, and provides common services for execution of various application software.

For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between application programs and the computer hardware, although the application code is usually executed directly by the hardware and will frequently call the OS or be interrupted by it. Operating systems are found on almost any device that contains a computer—from cellular phones and video game consoles to supercomputers and web servers.

Examples of popular modern operating systems for personal computers are: Microsoft Windows, Mac OS X, Linux, BSD, and Unix.

2.  Router

A router is a device that forwards data packets across computer networks. Routers perform the data "traffic directing" functions on the Internet. A router is a microprocessor-controlled device that is connected to two or more data lines from different networks. When a data packet comes in on one of the lines, the router reads the address information in the packet to determine its ultimate destination. Then, using information in its routing table, it directs the packet to the next network on its journey. A data packet is typically passed from router to router through the networks of the Internet until it gets to its destination computer. Routers also perform other tasks such as translating the data transmission protocol of the packet to the appropriate protocol of the next network, and preventing unauthorized access to a network by the use of a firewall.^[1]

The most familiar type of routers are home and small office routers that simply pass data, such as web pages and email, between the home computers and the owner's cable or DSL modem, which connects to the Internet (ISP). However more sophisticated routers range from enterprise routers, which connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone.

3.  Peripheral Device

A peripheral is a device attached to a host computer, but not part of it, and is more or less dependent on the host. It expands the host's capabilities, but does not form part of the core computer architecture.

Examples are computer printers, image scanners, tape drives, microphones, loudspeakers, webcams, and digital cameras.

4.  Local Area Network (LAN)

A local area network (LAN) is a computer network that connects computers and devices in a limited geographical area such as home, school, computer laboratory or office building.^[1] The defining characteristics of LANs, in contrast to wide area networks (WANs), include their usually higher data-transfer rates, smaller geographic area, and lack of a need for leased telecommunication lines.

ARCNET, Token Ring and other technology standards have been used in the past, but Ethernet over twisted pair cabling, and Wi-Fi are the two most common technologies currently in use.

These are just a few of the many terms used in modern day computer conversation.  Within each term are links to many other terms that I would encourage anyone to be keen to, as the emergence of technology as a standard for all facilities of living is growing rapidly.  I hope these terms also help you familiarize yourself with your own computer setup as well, and serve as an educational piece for you, your home, or office.