Drug testing

Computer Components for Idiots

There are many fancy add-ons for computers, but the basic components of the computer are simple and universal. If 1 of these main components is missing, it's not a computer.

The 4 essentials of every computer system are: a motherboard, a Central Processing Unit (CPU), memory, and a hard drive. These components are installed in a case to which are attached a monitor, a keyboard and a mouse. That's your basic computer.

Mother WHAT?

The motherboard ("mobo" for short) is the foundation. Everything attaches to the mobo -- the CPU, memory, hard drive, monitor, mouse, keyboard, add-on cards, even additional peripherals like printers, scanners, and speakers. The motherboard is like the nervous system and skeleton of the human body -- it provides support for the internal components and also passes information between the computer parts.

CPU

If the motherboard is the nervous system, then the CPU is the brain. Most of the mathematical manipulations that make computers operate are done by the CPU. Other components may also have their own processors, but their results still have to be passed through the CPU.

The speed of the computer is usually measured by the speed of the CPU. Even though other factors also affect overall speed, the CPU rating is generally seen as the single most important measure of performance.

Modern CPUs are usually rated between 2.0 GHz and 3.0 GHz, although each passing month will see increasing performance. This measurement refer to the number of calculations the processor can make in 1 second. The higher the number, the faster (better) the computer.

CPUs generate a lot of heat doing this work, so they need a heat sink and fan to keep them from overheating. Heat is a major enemy of the computer and directly affects its life span.

Computer Memory

RAM (Random Access Memory) is the part of the computer that stores information the computer needs while it is operating. It is Random Access because the computer can get the data in any order, not necessarily the order in which it is stored. Generally speaking, the more RAM the better. 512 to 1024 megabytes is common for memory.

The most common type of RAM these days is DDR-SDRAM, which stands for double-data-rate synchronous dynamic random access memory. We already know what the RAM part means. DDR means that the data is accessed twice as fast as ordinary RAM.

The latest type of RAM is DDR2. It offers even faster access rates and is quickly becoming the standard for computer memory.

Hard Drive

All the data contained in RAM is lost when the computer is turned off, so there has to be a place to store it permanently. This is what the hard disk is for.

It holds the computer's operating system. An operating system like Windows uses around 4 gigabytes of hard drive space. The extra space is used to install computer programs and to store your personal data.

80 gigabyte hard drives are common, but 400 GB units are available. Furthermore, you can install more than 1 in a computer case for added security and convenience.

Peripherals

All you need to complete the basic computer system is a monitor, keyboard and mouse.

Accessories like a printer or scanner are useful for office work, and gamers will probably want to add speakers and joystick controls.

So there you have it. The basic computer needs just 7 major components. For the best performance, these components must integrate well. The motherboard is the most important component for determining the type and specification of the other parts. Choosing an appropriate mobo for your computer needs is the first step and may require a quick call to your local geek.

Soon YOU will be considered the local geek!

Ron King is a full-time researcher, writer, and web developer. Visit Build-Computer-Now to learn more about this fascinating subject.

Copyright 2005 Ron King. This article may be reprinted if the resource box is left intact.

chicago transportation service
In The News:

Tracking the progress of the third party testing we at PES are coordinating along with U-Plug Products LLC, of their 2 kW U-Plug magnet motor that is a 24"x6" portable cylinder weighing 20 pounds, expected to cost 2,000 USD. We want to run it three times longer (21 hours) than what the best batteries available could provide. (PESWiki; February-April 2016)
Pre-launch video announces a new LENR website coming March 1, 2016 at http://LookingForHeat.com The video is very well done as an entertaining piece that hopefully will go viral. (Free Energy Blog; February 21, 2016)
It's not easy to find a qualified testing agency that is also willing to sign off on something that appears to defy our existing understanding of the laws of physics. U-Plug has agreed to allow for a group of us scientists, including at least 3 PhDs to go test their unit and publish our report. (PESN; February 20, 2016)
So that this is quite clear, this is a test on a Regular Torch. NOT the ELFE flashlight. This is to compare them. 2 x NiMH AA 1.2v Battery's in a Regular Torch with a Halogen Bulb. Load is 2.8v and 0.85amps. (PESN; February 17, 2016)
Video explains the scientific principles behind how the ELFE flashlight harnesses endless free energy from the environment (Earth's magnetic field), which works better in some regions than others. It also shows the insides the torch. Uses the word "antennae," as one of the components. (PESN; February 14, 2016)
"The OPhone contains a capacitor that directly powers our phone. During extensive use this capacitor may become discharged, however this capacitor is being constantly trickle charged by Orbo. So after a period of time the capacitor will be recharged and the phone will be functional again. In essence the phone is charging itself." (Free Energy Blog; February 13, 2016)
The company that has figured out how to harness the earth's magnetic field to produce usable power and has been selling the ELFE flashlight (two more customer reports), is now developing a 3 kW generator. In two weeks, they are holding a business meeting for international distributors. (PESN; February 12, 2016)
Illinois company is gearing up to manufacture a 2 kW (115 volts, 17.3 amps) magnet motor that is load-following, portable, 24"x6" tube, weighing 20 pounds, very quiet, with 3-year warranty but expected to last at least 20 years with zero maintenance. Third-party tested. MSRP 2000 USD, beginning March, 2016, through distributors. (PESWiki; February 11, 2016)
The government agent who worked on this technology five decades ago, that is similar to Professor Steven E. Jones' Joule Ringer, thinks it is conceivable that we could eventually scale this solid state technology up to have a device the size and price of an air conditioner providing 20 kw. (PESWiki; February 9, 2016)
Nagendra Singh in Mumbai, India, informs us that they have built five of these and have two running for customers presently, in the 40 kVA range. "Presently it is too [expensive], costing 3200 USD per kva below 30 kva." (PESWiki; February 8, 2016)
The SunCell is described as a solid state "Sun in a Box." A 200 kW module would weigh around 250 pounds, with energy production cost being around 1 cent/kwh, so return on investment could be ten days. They are expected to be available commercially by Q1, 2017. (PESN; January 6, 2015)
"Today I received my Elfe Flashlight and it works. Time will tell if it meets the claims of automatically recharging, when depleted. If it holds, the claims a real breakthrough in FE technologie would have been accomplished." -- German customer (PESWiki; February 6, 2016)
The phone battery indicator stays near full even with heavy usage throughout the day. (The battery is charged by the internal OCube that pulls energy from the wheelwork of nature, solid state). (PESWiki; February 5, 2016)
The capacity of the Proton-3ND (Proton -3 Nano Diffusion) battery is projected to be 44 times the capacity of lithium batteries. Electric vehicles with these batteries would have more power and much more mileage at no extra charge. (PESN; January 4, 2016)
HH2 water fuel cell creates pure hydrogen off a 9-volt battery. This was a big diesel HH2 cell that was tested on a 16-liter Cat engine for CARB testing; yet it ran on very low amps and a low 9 volts. (PESWiki; February 3, 2016)
A former U.S. Government worker describes his effort to bring to public awareness (by highlighting things presently in the public domain) energy and anti-gravity technologies that the government had operational 50 years ago but has kept from the public. (PESN; February 2, 2016)
Imagine an incandescent bulb that is actually more efficient than LEDs! Well, it actually exists (MIT) and it does so by recycling light. (Free Energy Blog; February 2, 2016)
SMBC-Comics.com has posted a fun spoof on our skeptics. (Free Energy Blog; February 1, 2016)
"OK, so a lot of people are asking what's the difference between an Orbo power cell and traditional batteries." Batteries store energy, Orbo generates energy, then trickle charges a lithium ion battery.] (Free Energy Blog; February 1, 2016)
Mr. Keshe is as misleading in the field of free energy as he is regarding me. That has been my experience the years I've been exposedto his work. He takes something and blows it so far out of proportion that it barely resembles the fact from which it was extrapolated into infinity. He demands: "Close PESWiki now." (PESWiki; January 31, 2016)
They have achieved solid state operation using an electromagnetic pump to spray the molten silver between the electrodes for the 1000/second continuous pulsing for continuous power production. (Free Energy Blog; January 29, 2016)

RAM - What is It & Why You Need Plenty

This is the first article in the Understanding Your Computer... Read More

A Look Inside The Elusive Inkjet Industry

The Inkjet printer industry is booming. Office supply companies report... Read More

Printers: What Really Happens When You Hit ?Print?

You just poured hours upon hours into a lengthy research... Read More

Expansion Cards Part 3: PCI Express

In the first two installments of this series of Tech... Read More

How to Save Money With Cheap Computers

We all know that computers change more then any other... Read More

DVD ROMs

DVD CD ROMs have become predominantly the most used CD... Read More

Intel Celeron vs Pentium

The Celeron and Pentium Processors are two of Intel's best... Read More

Testing Capacitor-How To Test A Capacitor When Breakdown Under Load

Have you ever come across power problem where once you... Read More

Buying Cheap Refurbished Laptops

When comparing refurbished laptop models, ask about these specifications:Central Processing... Read More

Expert Guide to DVD Camcorders

Thinking about a mini DVD camcorder? You're not alone, it's... Read More

Toner Cartridges - How They Work

In the past computers and their accompanying printers were huge.... Read More

USB Key Drives - Useful Tool

There are many different names for these drives, just so... Read More

Computer Cooling Hardware

PC cooling systems are one of the hottest - and... Read More

The Printer Cartridge Review

Years ago computers were huge and their accompanying printers were... Read More

Heliodisplay --Computer Video With No Screen

Science-Fiction meets reality with this new video display technology.The Heliodisplay... Read More

Dusting Your Computer - Keeping it Cool

My mother always told me to dust, but I never... Read More

What Is A Fuse? And How To Test It.

A fuse is a very thin wire, which either melts... Read More

Emergency Response VSAT Internet Communications

As 2005 begins, there are a number of products on... Read More

Inkjet Printer Tips to Select Proper Printer

If you are tight on budget, go for Inkjet Printer.... Read More

10 Things to Ponder Before Moving Your Office Network

Moving the office network? How hard could it be? Anybody... Read More

Small Computers

Today, small form factor computers demolish the myth that bigger... Read More

Unclogging Epson Print Heads

Tools needed:1 - 10cc Injector1 - 4" - 5" of... Read More

The Importance Of Current Sense Resistor In Switch Mode Power Supply

Current sense resistor is usually located in the switch mode... Read More

Inkjet Jargon Explained

With all the technical terms out there, it is becoming... Read More

A Review of Samsung Laser Toners

Samsung laser toner is just as popular as its Hewlett-Packard... Read More

street light photos led manufacturer list Pete's produce ..