In the current production technology, the industry is to allow the bright LCD screen, dark spots, dead pixels exist. Buy notebooks,
businessmen commonly cited standard is to allow up to 2,3 months appears bright or dark spots, but the total number of no more than 5.
The easiest way is to detect right-click on a blank screen, select "Properties."
the "background"
If you want to test a number of more professional, Nokia Monitor Test is a good software. It can easily help you find the LCD screen
problems, such as bright spots, dark spots, dead pixels and other display problems. At the same time through different display modes of
presentation can be evaluating the display screen contrast, text sharpness, color temperature, mole and other professional indicators of
bias.
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According to the author's buying experience, as long as consumers insist on, are generally not able to make business out bright and dark
spots existing products.
Currently, Intel's processors being used in most mainstream notebook makers. High-end notebook has generally transition to the Centrino
platform, and many are still using low-cost notebook P4-M, which is also a good solution. There are some low-priced products are used in
Celeron-M or AMD processors.
For the laptop, the processor fraud less likely. However, in order to better understand consumer, we can detect by a simple software to use
this machine in the end what processor. To the famous CPU-Z, for example, can detect processor name, company, core processes, internal and
external clock frequency, the local clock monitoring. At the same time, it can accurately display processors are supported by multimedia
instruction sets, and secondary cache size and velocity.
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For entry-level users, if you need to use laptop for gaming, image processing and other purposes, we recommend using the Intel P4-M or AMD
processors.
Now, with lithium battery technology matures and prices drop, low-cost laptop basically are equipped with such batteries. Low-cost laptop
compared to the early use of nickel hydrogen batteries, lithium batteries have a stronger discharge time and longer periods of time.
For notebook computers without the external power supply situation in long-term use of the users, we recommend using Celeron-M processor, it
has the Centrino platform, similar to P-M processor, power saving capabilities, which make the work of laptop battery enhance access to a
revolutionary time.
Buy laptop, we have to pay attention to whether the battery with a new, to prevent profiteers from Diaobao. Typically, because the new
battery few times to install the demolition, which left exposed metal contact parts (commonly known as "Goldfinger")
scratches, otherwise may be an old battery.
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If you do not worry, we can also use specialized software laptop battery Battery Mark test to test, it can be intuitive to use numbers that
come out of standby time.
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