Dell Inspiron M102z

Since the new Brazos platform APU chip AMD E-450 became available in the market, most laptop manufacturers where now busy creating their own masterpieces. One of these is DELL. Dell is now offering their new ultramobile pc computer powered by the new AMD E-450, the new Dell Inspiron M102z. The Dell Inspiron M102z is a very light and very functional ultraportable. It is said to be more powerful than most netbook computers nowadays. It offers more data processing power and graphics processing power compared to most netbook computers even the ones with dual core technology. It is probably because of the AMD Fusion processor which brings with it the AMD Radeon HD 6310.

Sony Vaio YB Series VPCYB35AG

The Sony Vaio Y Series VPCYB35AG is a mobile PC which features 11.6-inch display with a resolution of 1366x768 with an LED backlight. It is powered by an AMD Fusion chip, Dual-Core Processor E-450, combined with discrete-class graphics which is great for viewing video and playing games. This new APU is designed for small form-factor notebooks, Ultrathins, and affordable computers.

Dell Vostro V131

Dell Vostro V131 is a business notebook that has an excellent battery life, a backlit keyboard, a matte display, and powerful enough to handle most office productivity task that you will do with it. Its chassis is made of magnesium, a strong metal that's also used in enterprise-class laptops. The Dell Vostro V131 has a 13.3-inch, matte coating, 720p display with an effective resolution of about 1366x768 pixels.

HP ProBook 5330m - The Stylish Business Notebook?

The HP ProBook 5330m is another well-made business notebook from Hewett Packard. The build of this notebook is remarkably strong for a notebook with the same price range. This HP Probook 5330m might be the good answer if you want a great, aluminum-wrapped laptop for work and play. This notebook also is less than 1-inch thin which features brushed aluminum chassis and backlit keyboard.

Sony VAIO E Series VPCEG18FG

The Sony VAIO E Series VPCEG18FG is furnished with an Intel Core i5 processor. With Core i5 processor it is expected that it supports Turbo Boost and Hyperthreading technology for better performance for most demanding applications. This notebook comes with NVIDIA GeForce 410M GPU with a dedicated video memory of about 512MB for efficient and smooth daily usage. The NVIDIA GeForce 410M is an entry level dedicated laptop graphics card. This is somewhat as powerful as the integrated Intel HD Graphics 3000.

Nokia Lumia 800, Officially Announced!

Yesterday, Nokia announced its new smartphones powered by Windows Phone 7. One of these is the upcoming Nokia Lumia 800. Nokia Lumia 800 is almost identical with Nokia N9 which is powered by Meego Operating System. While it is almost identical with its Meego sibling, its screen size is smaller, which is about 3.7 inches diagonally. In comparison to its competitors, its display size is quite larger than the Apple iPhones’ 3.5 inches but smaller than Samsung Galaxy Nexus’ 4.65 inches. Furthermore, Nokia Lumia 800’s resolution is about 800 x 480 pixels, this is less superior than Galaxy Nexus’ 1280 x 720 pixels and iPhone 4S’ 640 x 960.

ASUS UX31E ZENBOOK

In the past few days, we have featured Ultrabooks from Acer and Toshiba. Today another Ultrabook is about to emerge in the market, the new ASUS UX31E ZENBOOK. This ultrabook computer comes with a 13.3-inch HD LCD display with an effective resolution of about 1600 x 900 pixels and an LED backlight. ASUS UX31E ZENBOOK Ultrabook sports Intel Core i7 2677M or Intel Core i5 2557M processor combined with an Intel QS67 Express Chipset. Furthermore, this Ultrabook features Intel HD Graphics 3000.

The Ultrathin and Ultralight Toshiba Portege Z830

One of the biggest news in the techy world last month is the Toshiba’s announcement regarding its upcoming Ultrabook computers. The ultrathin, ultralight Toshiba Z830. The Japanese laptop manufacturer has announced that it will be pitching its focus into Intel's Ultrabook chip with the upcoming Portege Z830 ultrabook. The Toshiba Portege Z830 is a 13.3-inch laptop, which measures just 1.59 cm at its thickest part.

Toshiba L735-S3220RD All-Purpose Notebook Computer

Toshiba L735-S3220RD is an all-purpose laptop which is lighter than typical all-purpose notebook computers. It has 13.3-inch glossy 720p backlit display with 16:9 aspect ratio and 1366x768 resolution. The Toshiba L735-S3220RD is equipped with 4GB of memory at 1333MHz and has a 640GB Toshiba hard drive at 5400rpm. The standard model is equipped with a Core i5-2410M CPU that runs at the speed of 2.3GHz (up to 2.9GHz TurboBoost ).

ASUS G53SX-A1, Portable yet Powerful Gaming Laptop

To all gamers out there, ASUS is here again to give you another gaming laptop that you will surely like. The ASUS Republic of Gamers G53SX-A1 gaming laptop. The ASUS G53SX-A1 has a 15.6 inch display that features robust parts that are distinctive of Republic of Gamers systems. On the other hand, the video card of ASUS G53SX-A1 has a slower memory bus speed and does not have a Blu-ray drive compared to the larger ASUS model G74SX.

Sony Ericsson Xperia Arc S - Build with Sophistication?

The Sony Ericsson Xperia Arc S is a slim smartphone which is powered by Android Operating System version 2.3.4, also known as Gingerbread. This smartphone has a screen size of about 4.2-inch (diagonally). The Sony Ericsson Xperia Arc S sports a 1.4GHz Scorpion processor with Adreno 205 GPU. This CPU is just a single core, unlike other smartphone units that sports dual core processors. Moreover, this Sony Ericsson’s flagship Android smartphone can take up to 8.1 megapixel photos, and it has a Reality Display and the ability to convert 2D images into 3D.

Samsung P6200 Galaxy Tab 7.0 Plus a SmartTablet!

One of the best cellphone company SAMSUNG has publicized a Tablet / Smartphone called Samsung P6200 Galaxy Tab 7.0 Plus. This tablet smartphone is ready to be released probably on the last month of this year. The Samsung P6200 Galaxy Tab 7.0 Plus supports GSM voice communication, SMS and MMS - this is like having a smartphone and a tablet rolled into one! This tablet smartphone is compatible with most network and GPRS services such as 2G (GSM 850 / 900 / 1800 / 1900) and 3G(HSDPA 900 / 1900 / 2100).

Fast, Bright, Fully Featured Nokia 603

Fast, Bright, Fully Featured, what a colorful world! That’s the exact phrase that might come in your mind as you will see the new Nokia 603. The Nokia 603 is available in six different back cover colors. This surely guaranteed that it will add some color to your life. It is powered with 1 GHz processor which makes your apps run fast and smooth. Moreover, the Nokia 603 also has 3.5" ClearBlack display capacitive touchscreen with 640 x 360 resolution.

HP Pavilion dm1-4000 Entertainment Notebook

Those who were followers of lightweight entertainment laptop computers, HP is bringing you again another entertainment mobile PC that you might like, the HP Pavilion dm1-4000 Entertainment Notebook PC series. With HP Pavilion dm1-4000 Entertainment Notebook PC series you’ll get a full PC experience in a lightweight package that you can bring wherever you go.

Lenovo IdeaPad U260 Another MacBook Alternative?

The new Lenovo IdeaPad U260 is the very first ultraportable laptop that features a screen display of about 12.5-inch and is powered with the second generation Intel Core i5 470UM processor with a clock speed of 1.33GHz. Since this is a Core i5 model, it supports TurboBoost and Hyperthreading technology. One good thing about Lenovo IdeaPad U260 is its durable metal body and leather accents which add to the premium look and feel of the laptop.

The New Sony VAIO SE and SA Series

Sony has released yet another eye candies, the Sony VAIO SE and the Sony VAIO SA. The Sony Vaio SE is designed specifically for people who like larger screen which is good when watching movies on laptop. Apart from the larger screen size, storage capacity which is about 500GB/640GB, the battery life and the dedicated keys, the Sony VAIO SE is packed with the same features as its smaller counterpart Sony VAIO SA.

HTML Forms

HTML forms is one method of getting information from your visitors. You may put a few boxes and buttons on your page where your visitors may enter their details and you may obtain them through email. Just like any other HTML tag, forms follow a structure. The <form> tag is a container tag. This means that anything in between the <form> and </form> tags is a part of a form element. Below is an example of HTML forms.

HTML - Inline Frames and Frame Related Attributes

The tag <iframe>, which means inline frame, creates a frame that is located inside the regular non-framed web page. <iframe> tag works like <img> tag, only instead of placing a picture on the page, it places another web page. Below is a code used for creating a webpage that contains an inline frame.

HTML - Frames in Rows

It is also possible to create frames in rows. Row frames are set up from top to bottom of the page. Below is the code used to create frames in rows.

Frames in Columns

Frames allow you to split the page into a number of rectangular regions and to display a separate document in each rectangle. Each of those rectangular regions is called frame. Frames are quite common because they are one of the few ways to keep part of the page stationary while other parts change. Frames are usually used to have a static navigation bar on one side of your webpage at all times. Below is an example of frame as displayed in Mozilla Firefox.

HTML- Modifying the Table Border, Alignment, Cellspacing and Cellpadding

As you have observed, the created table in the previous lesson has an invisible boundary. To make the boundary visible you can use the border attribute, there are other attributes used in modifying some properties of table and those will be discussed in this lesson.

HTML- Creating a Basic Table

As what has been said a while ago, tables are useful in presenting and structuring data. It allows the visitor to find the needed information quickly and easily. Below is an example of basic table.

HTML - Understanding Color

Like I said a while ago, you can modify the color of your webpage using HTML but the W3C recommends using CSS in doing this in HTML 4.01 and XHTML. The name of the color could be like "red", "green", "blue", “yellow”, “black”, “white” etc. The World Wide Web Consortium (W3C) has listed 146 valid color names for HTML and CSS (another mechanism for adding style to web documents and stands for Cascading Style Sheet). This includes aqua, black, blue, fuchsia, gray, green, lime, maroon, navy, olive, purple, red, silver, teal, white, and yellow.

Creating an Image Map-HTML

You can add some interactivity to your image using the image maps. Using the image map you can define several clickable regions using only a single image. For you to identify the clickable region in a given image you should define the so called hotspots within the image. Therefore an image map is an image on a webpage that contains several hotspots.

Controlling the Vertical and Horizontal space using HTML

If some text wraps around an image, it may look like too close to the image. We can increase the vertical and horizontal space around the image using the vspace and hspace attribute of the <img> tag, see the next image.

Controlling the Alignment of a Given Image using HTML

Aside from resizing your image, you can also control the vertical and horizontal alignment of your image with respect to the text using the align attribute. To demonstrate this property, open your text editor and type the next code:

Resizing an Image Using HTML

You can also modify the size of your image using the width and height attribute. Open your text editor now and key in the code:

Using Image as a Link

You can make your favorite image as a link too by placing the <img> tag in between the <a> and </a> tags so that the image is in place of the text you would usually have. So, to create a link using pix.jpg that will lead to header.html, you would write the following code

Inserting an Image

When inserting images in a webpage, they have to be in a particular format. Images in Windows Bitmap file format (BMP) or Macintosh Picture File (PICT) may not be rendered or displayed by the browsers. For that reason, graphics must be in a specific format so that browser can understand and display it in your webpage. The most commonly used image file formats in designing webpages and understood by the browsers are the GIF (Graphics Interchange Format), PNG (Portable Network Graphics) and JPEG (Joint Photographic Experts Group).

Linking to Another Page Anywhere in the World and Linking to Email Address

Linking to Another Page Anywhere in the World

Just like linking the page within a website there is no need to insert pound sign (#) before the file’s path when linking to a page anywhere in the world. Instead just place the full URL of the webpage as the value of the hypertext reference (href). See sample code below.

Linking to another Page within your Website

To link to another page within your website, there’s no need to insert the pound sign (#) before the file’s path, instead just place the filename and the appropriate file extension as the value of the hypertext reference (href). This method is applicable only if both webpages, the current page and the file to be linked to, is within the same folder. As shown in the right.

Hyperlink

A hyperlink or link is a text, group of text, or image that you can click on to go to a new page or a new section within the current page. If you are going to move your pointer over a link in a webpage, the arrow will turn into a little hand.

Understanding URL

You need to understand first what URL is before you can create a link. URL stands for uniform resource locator. It has several parts: the protocol; the domain name; the directory or folder; and the filename and its extension. Below is an example of URL and the corresponding parts.

Definition List

The third type of list is the definition list. It is useful for information that comes in pairs. A definition list starts with the <dl> tag. Each term in the definition list is listed with the <dt> tag. The description for the term is listed with the <dd> tag.  Launch your text editor now and type the next code.

Creating Nested List

It is possible to create a list inside another list. This type of list is called as nested list. A nested list can be used to create an outline. The next figure is an example code of nested list.

Ordered List

Ordered List is also called numbered list. This type of list can be used when the order of items to list is significant. It could be used if you want to list the steps in cooking or preparing a recipe, with ordered list each list items are emphasized in order; alphabetically or numerically. An ordered list can be made with different styles; Arabic numbers (1, 2, 3, …), lowercase or uppercase letters (A, B, C…), or lowercase or uppercase Roman numerals (I, II, III, …). The following code shows examples for each of these types: (You may type the code on your text editor to see it yourself.)

Unordered List

Lists are often used to present information in an easy to read approach. List allows you to make your key points stand out from the rest of the text; it is also used to indent information. List can be numbered, bulleted or printed without numbers and bullets.

Blockquote Tags

The <blockquote> tag defines a long quotation. Blockquote tags (<blockquote>, </blockquote>) are used to set off a section or block of text from the surrounding text meaning to say browser inserts white space before and after a blockquote element. Blockquote is often rendered with indented margins. Open your favorite text editor again and key in the code below.

Non-breaking space, &nbsp;

&nbsp; stands for non-breaking space character or simply known as space character. It should be typed in lower case letters. Just like the angle brackets (<, >), browsers also read commands between ampersand “&” and “;”. Let us see the effect of non-breaking space tag on your webpage by typing in the code below on your text editor.

Text Formatting

In the previous lesson, you have written a short code to show that you can write HTML. It feels good, right? But I know you still want to improve the look and feel of your webpage. You want some text to be noticeable, want to bold some text and use italics. Below is the list of tags used in formatting text.

The Header Tags

Header tags are used in HTML documents to display headings. It makes your heading larger or smaller and makes the heading bold. You use big headings for the main points in a webpage and small headings for the sub points. There are six header tags: <h1>, <h2>, <h3>, <h4>, <h5> and <h6>. Each header tag indicates the relative importance of each section it is heading.

Preformatted Text Tag, <pre></pre>

Preformatted text tag marks the text as "preformatted". All the spaces and returns are rendered exactly as you type them. Preformatted text is displayed in a fixed width font, meaning to say, all characters and spaces are the same width. Open your text editor now and key in the next code to see the effect of </pre> tag in action.

Horizontal Rule Tag, <hr />

HR stands for horizontal rule. It is used to draw a horizontal line (a "horizontal rule") across the page. To see its property in action, key in the code given below on your text editor.

Paragraph Tag, <p></p>

Paragraph tag is consists of opening tag and closing tag. It tells the browser to insert a blank or empty line and then begin a new line or a new paragraph. One of the attribute of paragraph tag is the align attribute — it indicates the alignment of the paragraph: left (the default alignment), center, right and justify. To see its property in action, key in the code given below on your text editor.

Line Break Tag, <br />

Line Break Tag, <br />

This tag is called as line break. It tells the browser when a line has ended and to start on the next line. Key in the code below on your favorite text editor to see the effect of <br> tag in action.

Basics of HTML

Basic Webpage Format

Tags describe the meaning of the text they contain, some of them are <html>, <head>, <body>, <p>, <title> and more.  To tell the browser that something is a tag, simply place the less than (<) and greater than (>) symbol around them. Those symbols are also called angle brackets. Therefore, if you will enclose the word head in between the opening angle bracket “<” and closing angle bracket “>”, you are telling the browser that the word head is a tag.

Things Needed in Designing your Webpage

Before working with your very first webpage, let us discuss first the things needed in creating it and how to give your webpage a name.

In creating a webpage, you will need a directory or folder, a web browser and a word processor.

History of HTML

HTML stands for HyperText Markup Language. It is one of the languages used to create web pages and a means of interconnecting web pages together. A webpage is viewed in a web browser like Internet Explorer, Mozilla Firefox, Google Chrome, Opera and many more.

Acer Aspire S3-951-2464G34iss

Acer Aspire S3-951, the MacBook Air Alternative?

MacBook air is considered as the thinnest (?) laptop available in the market today. Will that statement still be true in the next days to come? Many seem goggling now on the Acers next big move on providing us their new lines of notebook computers, the Acer Ultrabooks. Acer’s first Ultrabook model is the Acer Aspire S3-951. The initial wave of Intel-based Ultrabooks were so designed to be a good alternative to the MacBook Air and is now available, this October, with a price tag of USD900.00. In the Philippines its price is more or less 45,000 pesos for the Acer Aspire S3-951-2464G34iss model.

The Best Free Software for ICT Class

The Best Free Software for ICT Class

It has been proven that incorporating ICT in teaching is one of the effective methods in transferring knowledge and skills to our students. This is the very reason why teachers are encouraged to keep updated with the latest know-hows on Information and Communication Technologies and to integrate these to teaching and learning. On the other hand, one of the problems that are being encountered by the teachers in integrating ICT to education is the financial limitations to acquire computers and commercial software products, particularly in the public schools.

Samsung Captivate Slide

We all know that not all people were admirers of touchscreen technologies. For some people specially those who have huge fingers, they find touchscreen keyboard as irritating and not that friendly to use. This is the very reason why phone manufacturers are still creating phones with physical keyboards. Those who were big followers of smartphones with QWERTY physical keyboard, Samsung has something special that you’ll definitely like, the new Samsung Captivate Glide.

Nokia Sabre

Nokia Sabre, Nokia's Next Big Thing?

Will Nokia be able to resurface again after Samsung and Apple lead the race? That remains to be seen in the next few days when Nokia Sabre will be officially launched and be available in the market. For sure Nokia lovers will definitely be happy if they’ll know the specs of the new Nokia — Nokia Sabre smartphone.

Samsung Galaxy Nexus

Samsung Galaxy Nexus, The New Smartphone Champion?

It's not a humor anymore that the next Samsung+Google smartphone  will be released coming this November. Tech world pronounced that the next smartphone champion will be the Samsung Galaxy Nexus.This smartphone will be powered by new Android operating system named Ice Cream Sandwich. It is said that the Samsung Galaxy Nexus is the very first mobile phone to have an HD super AMOLED display which measures 4.65 inches (that's about 0.35 inch larger, diagonally, than the former champion Samsung Galaxy S II) with a whooping 720x1280 resolution. Moreover, the new Samsung Galaxy Nexus smartphone was proudly announced to have a snappy display response time of about 0.01millisecond. 

Apple iPhone 4S

One of the smartphones' market leader nowadays, Apple, has launched its new smartphone model the iPhone 4S. One of the great things about the iPhone 4S is the A5 chip which is great for gamers. The A5 chip drives graphics up to seven times faster, therefore most games run smoother and they are even more convincing and realistic. Moreover, graphics-intensive applications execute even better. The iPhone 4S has a camera resolution of 8 Megapixel which is much better compared to the previous model iPhone 4.

Sony Ericsson Xperia neo V

One of the mobile world's giants, SONY Ericsson, has just released its new smartphone model the Sony Ericsson Xperia neo V. The Sony Ericsson Xperia neo V comes with Android Operating System version 2.3.4 Gingerbread and extra Sony Ericsson software enhancements for enhanced user experience. With Android OS you will experience rich multimedia and gaming power. This smartphone is available in White, Silver and Blue Gradient color. Compared to the previous Neo, Sony Ericsson has downgraded the Sony Ericsson Xperia neo V camera to just 5 Megapixel, this is something that, of course, is not a nice move by the company.

Samsung Omnia W I8350

One of the most popular mobile phone brands nowadays is Samsung, why? It’s simply because of great specs, designs and features. One of the latest additions to their lineups of smartphones is the Samsung Omnia W I8350. One good thing about Samsung Omnia W I8350 is its exquisite look. Those who were after the phone’s design the Samsung Omnia W I8350 may be included in your list.

Acer Iconia Tab A501

Screen size, portability, capacity and connectivity are some of the factors why most people were continuously looking for a device that has the capability of being a smartphone and a pc at the same time. Another factor that can be added to the list is the price, for practical reason why would you pick a pricey one when you can have an alternative that has the same specs and quality. This is true with  the Acer Iconia A501 tab. The Acer Iconia Tab A501 is one of the cheapest, branded, Honeycomb tablet currently on the market.

ViewSonic's ViewPad 7 VS13761

Nowadays, you can see tablet computers everywhere, ranging from Chinese version’s ePAd, aPAd to Apple’s iPAd; these are mobile internet devices with screens larger than that of smartphones. Usually tablet computers are capable only of viewing your documents, take pictures, browse internet and play games but now some of them supports GPRS, 3G and GSM connectivity which enables one to send text messages and make phone calls? One of these tablets is the ViewSonic's ViewPad 7 VS13761.

Nokia N9

Nokia's much awaited smartphone is now available in the market, the Nokia N9. Anyone may be impressed with the Nokia N9's design with a stunning AMOLED screen and some highly responsive performance. The Nokia N9’s display is a Clear Black AMOLED with gorgeous viewing angles. Nokia N9 also has a curved Gorilla Glass front thus has an excellent performance out in the daylight.

Toshiba Portege R830 2012ur/2010u

Toshiba has launched its lightest but full performance ultra portable laptop computer ever, aotw, and this is their new  Toshiba Portege R830. This is specially designed for "people on the go" that needs not just a pc but a powerful, sleek and truly portable one. The Toshiba Portege R830 laptop provides durability with a unique shock-absorbing design, and contains an intricately fashioned magnesium casing masking a robust honeycomb rib assembly.

Nokia 701

The Nokia 701 is another smartphone coming from the Giant phone manufacturer in Finland. One good thing about this new smartphone device from Nokia is the screen brightness. Nokia 701 has the brightest screen display, as of this writing, therefore it is less annoying when used outdoor. Just like the most smartphone device coming from Nokia, the Nokia 701 is powered by SYMBIAN Operating System, with the new version BELLE.

Nokia 700

Here comes the smallest smartphone, as of this writing, from cellphone giant, NOKIA. Though it's slim, it's power packed with notable features. Nokia 700's interesting features are: Gorilla Glass display, AMOLED capacitive touchscreen with 16M colors and a resolution of 360 x 640 pixels, diagonal screen size of 3.2 inches, Symbian Belle OS, 1GHz processor, WLAN and HSDPA.

The Nokia 500

The Nokia 500 has been out now in the Philipines with a price ranging from PHP 9,000 - 10,000. The Nokia 500 is built with SYMBIAN ANNA operating system, 1 GHz ARM 11 processor, TFT capacitive touchscreen with the screen size of 360 x 640 pixels 3.2 inches, 2 GB internal memory, 256 MB RAM and 512 MB ROM.

Resistors in PARALLEL Configuration

When loads are connected across each other or side by side, so that there is more than one path for the flow of electric current, the resistors are said to be parallel connected. The more the loads are connected in parallel, the lesser the opposition there is to the flow of electric current. The effective resistance is smaller than the smallest resistance value in a circuit.

Resistors in SERIES configuration

When resistors are connected end-to-end so that there is only one path for the flow of electric current, the resistors are said to be series connected.

The effective resistance of a series circuit depends on the number and the value of resistors connected in the circuit. The more resistors connected in series, the higher the effective resistance of the circuit. The higher the resistance of the circuit the more the opposition there is to the flow of electric current.

Below are the rules to be followed in computing the unknown quantities in series circuit.

Electric Power

When a force causes motion work is done. When one exerts effort to push an object and when such effort causes the object to move forward, work is done. If such an effort did not cause the object to move, such force does not cause work.

Ohm’s Law

We all know that electrons flow through the circuit because of the electromotive force or voltage. Great amount of voltage applied in the circuit will cause more electrons to move from one point to another, or the greater the intensity of the current flowing in the circuit. Connecting resistor with high amount of resistance in the circuit will decrease the intensity of current flow. This relationship between voltage, current and resistance is stated in Ohm’s law.

Identifying the electrodes and type of bipolar transistor.

Note: Range x1 or x10 is used in illustrations A to F.

1. Connect the test probes to the terminal of the transistor.Observe that the pointer needle did not deflect. Then reverse the connection as shown on illustration B.
2. In this illustration, the pointer needle deflects to the right. In this case, we can say that the first or the second terminal is the base.

Testing Diodes with an Ohmmeter

Just like any other electronic component, one of the methods used to identify whether a diode is defective is with the use of your senses. Some indications of a damaged diode are: crack on its body, a sign of burn or burnt smell coming from diode. If there are no physical signs that a diode is defective, you may use an ohmmeter to test its condition. Below are steps to be followed in testing diodes with an ohmmeter.

Identifying the Anode and the Cathode of Diode with an Ohmmeter

Before attempting to test a good or defective diode, one very important thing to consider is its terminals or electrodes. These electrodes are anode (A), positive current-carrier and cathode (K), negative current-carrier. Following are some points to consider in determining the electrodes of a diode.

Testing Capacitors with an Ohmmeter (Analog Multitester)

A capacitor may develop troubles like open, shorted and weak or leaky. Following are rules to be followed in testing capacitors:

1. Switch off the power supply.
2. To be safe and to protect your ohmmeter from damage, discharge the capacitor before testing. Do this by short-circuiting its two terminals with a conductor. Make sure that the conductor that you are using has an insulated handle to protect you from electric shock.

Field Effect Transistor (FET)

Field effect transistor is also called as unipolar transistor. FET uses either electrons, in N-channel FET, or holes in P-channel FET for conduction. Field effect transistor has four main electrodes: source, gate, drain and substrate. In general, the body of the FET is connected to the source inside the package.