August 20, 2009

Nokia 2505

Nokia 2505 picoSpecifications:

Network: CDMA 800 MHz
Dimensions: 82 x 42 x 16.65 mm
Weight: 65 grams
Display Type: TFT 65,536 color
Screen Size: 128 x 160 pixels
Ring tone: Polyphonic (32 channels)
Vibrating alert: Yes
Phonebook: Yes, 300 entry
Memory: No
GPRS: No
3G: No

WLAN: No
Bluetooth: No
Infrared Port: No
USB: No
Operating System: No
Message: SMS
Internet Browser: WAP browser
Games: Ping Ping, Super Kart, Numeral Cube
Camera: No
Standby time: 156 hours
Talk time: 3 hours
Other Features: Shine with a thin and elegant 16.65mm, Press the quick-flash, Two-way handsfree Speakerphone, Nokia user-interface with the popular 4-way scroll key and select in the middle, Display a monthly calendar, and notes Reminder
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Nokia 1325

Nokia 1325 imageSpecifications:

Network: CDMA 800 MHz
Dimensions: 104 x 42 x 15.2 mm
Weight: 71 grams
Type 65536 Color TFT Screen
Screen Size: 96 x 65 pixels
Ring tone: Polyphonic 32 Tones, MIDI
Vibrating alert: Yes
Phonebook: Yes
Memory: Slot No
GPRS: No
3G: No
WLAN: No

Bluetooth: No
Infrared Port: No
USB: Yes
Operating System: No
Message: SMS
Internet Browser: No
Games: Blocks, Ghost House and Magic Puzzle
Camera: No
Standby time: 192 hours
Talk time: 3.5 hours
Other Features: Alarm clock, Stopwatch, Calculator, Countdown timer, Voice Recorder, Predictive text input, Photo album, Photo editor, Voice dialling, FM Radio, Speakerphone

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August 19, 2009

Types of Screen

The development of mobile phone / handphone technology need not doubt, one of which is in the display (screen). Here we will learn about the difference types of screen used in mobile phones. From Monochrome (1 color, Black), Passive-matrix (stn, CSTN),
Active-matrix (TFT, TFD), UFB Samsung, and OLED.

* Monochrome
Screen LCD (Liquid Crystal Displays) is the type we often see on Calculator, digital watches, and mobile phone (used to). Liquid crystal can be manipulated by electric current, so that they change form. How monochrome works on mobile phone, is to block the light that will come out. One of the advantages of monochrome which power consumption is lower than the other. And after many years, the mobile display width of the day, color, and detail. Monochrome screen, so at this time period is considered to be lagging. But still there is a flip mobile phone still use this type of Monochrome.
* Passive-Matrix Color Display
Most of the first color screen mobile phone to use this passive-matrix technology. This technology uses a system of wires in the form of vertical and horizontal to provide a power / enlighting a pixel. This type of screen is cheaper than the TFT (will be discussed later). But have any weaknesses of its little low response, Quality of look is not optimum when compared with the light type active-matrix screen. Using the passive-matrix technology, among others: STN - Super Twisted Nematic and CSTN - Color Super Twisted Nematic
* Active Matrix Color Display
Active matrix uses technology TFT (Thin Film Transistor) that is generally used for notebooks. TFT screen puts transistor at each screen pixel which is capable to on and switched off individually, so that the image display is sharp, bright, and very fast response. But TFT has its weakness that is more expensive and more power battery comsumption. Other types of screen including active-matrix is a TFD (Thin Film Diode), the same place with the diode in each pixel screen. TFD technology combines the image quality and speed of response of the TFT is very good, with low power consumption and low cost of stn.
* UFB Samsung
UFB (Ultra Fine & Bright), an LCD technology that was created and introduced by Samsung in year 2002. Can operate only with 3mW which need less power consumption than TFT. This course will extend the battery resistance. Mobile phones that use the
type UFB screen size will have a more sparse.
* OLED Display
OLED (Organic Light-Emitting Diode) is also known as LEP (Light-Emitting Polymer) and the OEL (Organic Electro Luminescence). Is a new generation display technology that consists of dots of organic polymer that emit light when charged with electricity. When compared with LCD, OLED display has advantages over the thin, light, light, fast, cheap and little more power consumption (due to not need a light background). The only weakness of this screen is difficult to see if you are under the light source like the sun.

Resume of all types :

Monochrome :
- Low power consumption
- 1 color, Black
Stn & CSTN :
- Cheap manufactured
- Minimum power consumption
- Less than optimal image quality
- The response is rather slow
- Poor light
TFT :
- Good quality picture
- Display light & sharp
- Rapid response
- More power consumption
- Expensive
TFD :
- Good quality picture
- Display light & sharp
- Rapid response
- Minimum power consumption
- Cheap
UFB Samsung :
- Over thin
- Better image quality
- Bright & sharp display
- Rapid response
- Very minimum power consumption (3mW)
OLED :
- Thin
- Lightweight
- Light
- Cheap
- Rapid response
- Minimum power consumption
- Difficult to see if you are under the light source such as sun








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Used Mobile Phones

Buying used mobile phones :

Mobile phone nowadays has grown rapidly, and has become a requirement for every person. Mobile phones have all kinds of brand, product type. Start of the most inexpensive to the luxurious with high technology such as mobile phones that come with facilities PDAs, 3G, digital cameras, bluethooth, more and more features will be more expensive. Because the price of new mobile phones are more expensive, many of us prefer to buy used mobile phones, with the cheaper price we can get a more feature complete than buy a new one. Here are some tips we gratitute buy Handphone former we should note are:

* Market price, this is the main condition of the purchase price for the used mobile phones in each store definitely different. Benchmarks for the price you can see the ad in the tabloids. Firstly, identify the price in tabloids with the price in a store, if the store is too expensive in price appeal in the ad line, we could simply says "your price above the market" from there directly to give you a quote with the lowest price possible. The other step is, you can buy from one shop to another in comparing the difference in accordance with market prices.

* Warranty, this is an important guarantee is the official or shop warranty. Check whether the first mobile phone that you want to buy has a valid warranty. For a good shop, it has the warranty period at least 3 months.
* Battery, this is a scourge in buying second-hand mobile phone, the battery sometimes drop (lowbat). There are some tricks to know battery whether is still good or not. The first step is, see the surface of the battery, is still flat or not? If it is not that means battery is worn must be replaced. The second is to play the menu voice, ringtone, call, vibrating alert, MP3 player. If we play in the 2-5 minutes when battery indicator is full, but suddenly it alerts you low bat indicator, it means the battery is no longer good. The original battery has its hologram sticker on it.
* LCD screen, this is also important because it is an expensive part of mobile phone. Despite a lot of cheap, but not good quality. Tricks for the LCD is still good or not, you can check the view from the surface of the LCD right or left side. We also can check from up and bottom. If it slightly darker color or the LCD surface is not flat anymore, means such as LCD has bad quality. There are other ways to see the quality of LCD by pressing the outside of the top and bottom of the frame on the LCD if you press and casual look in the display menu is still intact or has been blurred.
* Inside part of body, see the glass surface at the keypad, still in good condition or not.
* Seal, see if this important seal hologram is still installed or removed. If it is released or no longer exists, the phone has ever repaired.
* Signal, is the life of a mobile phone, if there is no any signal happens at the phone, meaning the stuff is not good to buy.
*Packaging and manual book inside, match if the packaging number on it match with the serial number at the mobile phone. We could see the mobile IMEI number at the back of its battery. If both has the same number, that means the mobile phone is
original. We also could the IMEI number by pressing * # 06 # on the keypad and the phone IMEI number will appear on the screen phone. Skewer the numbers appear on the screen with the label.
* Check out the making of year, it is important to know how long it been used. To check the years of making, do with pressing*#0000# on the keypad (maybe different of each brand of the mobile phone) the making of year will appear on the LCD screen.

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