JeBLoG

Hebrews 13:5

2008-01-27T18:13:00.000-08:00

Keep your lives free from the love of money and be content

with what you have, because God has said,

"Never will I leave you;

never will I forsake you."

"REACTION"
Money is good but
don't try to much or don't expect to much for your life and
be as you are or be as who you are because GOD is always
be here for us no matter what..

2008-01-27T18:12:00.001-08:00

Single-mode fiber is sometimes abbreviated as SMF.
Single-mode fiber is a type of fiber optic cable through which only one light signal can travel at a time.
Because single-mode fiber is more resistant to attenuation than multi-mode fiber, it can be used in significantly longer cable runs.
The core of a single-mode fiber is normally 9 microns wide. A micron is one millionth of a meter.
Single-mode fiber can support Gigabit Ethernet over distances as long as 10 kilomters.
The opposite of single-mode fiber is multi-mode fiber.

2008-01-27T18:09:00.000-08:00

The opposite of multi-mode fiber is single-mode fiber.
Multi-mode fiber is easier to work with than single-mode fiber. The fiber is larger and the tolerances required are much lower.
Multi-mode fiber is sometimes abbreviated as MMF.
Multi-mode fiber is a type of fiber optic cable which is thick enough for light to follow several paths through the code.
Multi-mode fiber is best suited for use in short lengths, such as those used in Local Area Networks (LANs) and Storage Area Networks (SANs).
Multi-mode fiber comes in two standard widths, 62.5 micron and 50 micron. A micron is one millionth of a meter.
62.5 micron multi-mode fiber can support Gigabit Ethernet over distances as long as 275 meters; 50 micron multi-mode fiber can increase that range to 550 meters

2. Purchase small stopgap upgrades

2008-01-18T16:11:00.000-08:00

If you have systems to which you can add some memory or drive space, this is a good opportunity for minor upgrades. They can be especially helpful if you don't foresee capital monies for a new project, yet the business demands expanded functionality.

Ans. Purchase small stopgap upgrade is helpful if you don't foresee capital monies for a new project, yet the business demands expanded functionality. If you have systems to which you can add some memory or drive space, this is a good opportunity for minor upgrades. But, if you accommodate unfunded requests, you may be setting a poor precedent for the business. It is one way to acquire its equivalent and to obtain by putting some power or strong effort to any action. It can also gives a mechanical advantage like personal computers. But be cautious here: If you accommodate unfunded requests, you may be setting a poor precedent for the business. This is a better strategy for systems used entirely by your department. Memory is so important that it cannot be wasted. RAM is allocated by the operating system and programs, and then released when not needed. Errant applications can grip RAM and not release it, which results in a diminishing amount of memory available as you load and use more programs. One of the easiest ways to boost performance for any PC is to add memory to the system. But before you go to get that memory upgrade, be sure to gather information about your computer to ensure you get the right memory for your system. You need to know what type of memory the computer uses, the memory module sizes and what already exists in the system. Adding Random Access Memory (RAM) is an easy and cost effective way to boost your computer’s performance. Although the computer may function with 512MB of RAM or even less, generally 1024MB is a reasonable minimum. Computer consultants build entire careers around advising businesses when to upgrade their hardware. Should you go with the latest and greatest, or stick with tried and true? As with all business decisions, it comes down to a question of cost vs. benefit. But quantifying the costs and benefits of hardware can be difficult. Here are some factors to consider when you are agonizing over whether to upgrade. The price tag of your new system isn't the only cost ? there is also the time, energy, and money to migrate your information to your new equipment. If you're thinking of upgrading just so you can have the latest gear loaded with all the bells and whistles, stop. Unless you have a solid business case for upgrading, your money will be better spent elsewhere. Stopgap measures. If it's bells and whistles you want, maybe you can add them yourself. Adding additional RAM ? or Random Access Memory, which is the memory that allows your computer to perform its tasks ? is a great way to speed up your system, and it's really simple, even for neophytes. Most RAM retailers, such as Crucial and TigerDirect, have online configuration calculators to tell you exactly which RAM your system needs. Once you get the right RAM, it's simply a case of opening your computer case and snapping it in place.

1. Buy core spare parts

2008-01-18T16:09:00.000-08:00

Although it's generally not a good idea to stash parts, you might consider building a small local inventory of the ones you most frequently replace. Items might include power supplies, hard drives, or RAM for critical servers. If you can get away with it, it might also be handy to have a network switch or module that you've had fail before.

Ans. Based on my part, buying core spare parts is such a good idea for special purposes and it is very useful because it’s one way of upgrading the personal computer and to make the personal computer work faster especially when it comes to networking. It also works less error or error shall we say error free. Although it's generally not a good idea to stash parts, you might consider building a small local inventory of the ones you most frequently replace but, as I was saying, buying core spare parts is very useful to all personal computers because as the word itself “core” it is the central or innermost part of a thing or shall we say it the central or innermost part of the personal computer and it is the most important of anything or the most important part of a personal computer. Buying core spare parts is to refrain from injuring, and treat no error.

8. Ability to implement change management processes

2008-01-09T18:27:00.000-08:00

Technology, by its nature, demands rapid change. Every IT manager needs to be able to understand how to effectively implement change, whether it’s swapping out a PC, upgrading an entire network, or developing and installing new software. Failure to manage change effectively will cripple any manager.

Ans. My comments on this article are that, every Information Technology manager should need to understand on how to effectively implement change, whether it's swapping out a Personal Computer, upgrading an entire network, or developing and installing new software because, the role of an Information Technology manager is to understand how to effectively implement change whether it's swapping out of a Personal Computer, and the the very important role of an Information Technology manager is that they are the one gives instructions to the Information Technology employee and from the word itself "manage", they are also the one who manage the entire Information Technology department, and for that, Information Technology managers must know how to effectively implement change, whether it’s swapping out a Personal Computer, upgrading an entire network, or developing and installing new software. As an Information Technology manager, it is disgraceful if Information Technology managers don't know how to effectively implement change, whether it’s swapping out a Personal Computer, upgrading an entire network, or developing and installing new software and if the Information Technology employee is more knowledgable than the Information Technology manager.And now the years go by everyone knows how use Personal Computer. So for me, it is sad to say that failure to manage change effectively will cripple any manager. That's the reality and accept the reality. That's all. Thank you! and GOD SPEED!!! -jeb-

PUNCH DOWN TOOL

2007-12-19T17:44:00.001-08:00

A punch down tool, also called a punchdown tool or a Krone tool (after wiring systems manufacturer ADC Krone), is a small screw-driver sized tool used for connecting wiring to a punch down block[1]. The tool consists of a handle with a spring mechanism inside and at the tip a small square piece of metal with a square hole in it. To use the punch down tool, a wire is inserted in between the two metal blades on a punch down block and the punch down tool is pressed down on top of the wire and the two blades on the punch down block. This requires a bit of pressure until with an audible snap the wire is stripped and contact made as it is pushed down between the two punch down block blades.

PATCH PANEL

2007-12-19T17:26:00.000-08:00

A patch panel is mounted hardware unit containing an assembly of port locations in a communications or other electronic electrical system.In a network(LAN) and to the outside for connection to the Internet or other wide area network(WAN).A patch panel uses a sort of jumper cable called a patch cord to create each interconnection.Cat 5e patch panel is available in 12 to 72 ports.All panels are 19 inch rack mount and support both 568A and 568B installations. Compatible with both 110 Block、LSA Block and block.

A patch panel or patch bay is a panel, typically rackmounted, that houses cable connections. One typically shorter patch cable will plug into the front side, while the back will hold the connection of a much longer and more permanent cable. The assembly of hardware is arranged so that a number of circuits, usually of the same or similar type, appear on jacks for monitoring, interconnecting, and testing circuits in a convenient, flexible manner.Patch panels offer the convenience of allowing technicians to quickly change the path of select signals, without the expense of dedicated switching equipment. This was first used by early telephone exchanges, where the telephone switchboard (a massive array of patch panels) and a large room full of telephone operators running it was ubiquitous.

Uses and connectors
They are not only used in telephony and data, but in other audio and video applications. Patch bays are used at installations where it is necessary to connect and reconnect various hardware devices, for example at technical control facilities, patch and test facilities, at telephone exchanges, broadcast studios, and recording studios.

Patch panels can have any number of different types of electrical connectors, often having a different type on the front than the back. If it has a compound connector on the back and individual ones on the front, it is also a breakout box. One example is a DB25 connector used for 8-channel balanced line audio, which is split into eight XLR or TRS connectors on the front.
Patch bays facilitate flexibility in the use, routing or restoration of a variety of circuit types, such as dc, VF, group, coaxial, equal-level, and digital data circuits. Patch panels accepting industry standard keystone modules are also available, allowing a variety of connectors to be used on a single panel.

In telephony and data, the 66 block and 110 block are punch blocks often used as patch panels. These have insulation-displacement connectors for quick wiring of wires which have no attached connectors. Old switchboards used tip-ring (TRS) connectors on the front, still the most common type used now for audio.

What is the difference between CSMA/CD and CSMA/CA?

2007-11-21T19:49:00.000-08:00

CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) is the channel access mechanism used by most wireless LANs in the ISM bands. A channel access mechanism is the part of the protocol which specifies how the node uses the medium : when to listen, when to transmit...

The basic principles of CSMA/CA are listen before talk and contention. This is an asynchronous message passing mechanism (connectionless), delivering a best effort service, but no bandwidth and latency guarantee (you are still following ?). It's main advantages are that it is suited for network protocols such as TCP/IP, adapts quite well with the variable condition of traffic and is quite robust against interferences.

CSMA/CA is fundamentally different from the channel access mechanism used by cellular phone systems.

CSMA/CA is derived from CSMA/CD (Collision Detection), which is the base of Ethernet. The main difference is the collision avoidance : on a wire, the transceiver has the ability to listen while transmitting and so to detect collisions (with a wire all transmissions have approximately the same strength). But, even if a radio node could listen on the channel while transmitting, the strength of its own transmissions would mask all other signals on the air. So, the protocol can't directly detect collisions like with Ethernet and only tries to avoid them.

Under CSMA/CD, when a station has data to send, it first listens to determine whether any other station on the network is occupying the medium. If the channel is busy, the station will wait until it becomes idle before transmitting data. Since it is possible for two stations to listen at the same time and discover an idle channel, it is also possible that two stations could then transmit at the same time. When this occurs a collision will take place, and then a jamming signal is sent throughout the network in order to notify all stations of the collision. The stations will then wait for a random period of time before re-transmitting their respective frames.

-TEMA-

2007-11-21T19:43:00.001-08:00

log on to our Web site:
www.myspace.com/temadavao
where you can listen TEMA's compositions

local bands and local music...
...no matter where "local" is to you.

All MUSIC you want for!

My MUSIC

2007-11-21T19:14:00.000-08:00

Music

Music,
Music Is Life,
Without It We Would Be In Strife,
Music Is My Whole World,
Without Music My Life Would Deserve To Be Hurled.

Music Is Love,
Music Is Like A Dove,
Music Is Passion,
Where Do You Think Everyone Gets Compassion.

Music Is What Keeps Us Alive,
It Helps Us Thrive,
Music Consumes You,
It Never Wants To Say Adeiu.

Music.