July 2nd, 2003, 05:04 AM
Through out this site, it has software related security articles , i waana know about some hardware . What's the actual difference in ARD RAM, DDRRAM, SDRAM, and majorly SIMM and DIMM modules. Don't bother me by telling the differnces in thier bus speed.Also Technological difference in monitor, LCD & TFT screens.
July 2nd, 2003, 05:19 AM
Source Found Here
The memory or RAM (Random Access Memory) has another obvious analog to the human body and that is the human memory. The RAM serves as a temporary memory source for the computer. It stores vital data for the computer while the computer remains powered, but then the data is lost forever after the computer is turned off unless you save the data to a permanent storage media such as the hard drive or a floppy disk. There are only a few things that you need to know about memory to be able to buy and install it. First there are basically four kinds of RAM for the computer--parity, non-parity, EDO, and SDRAM. To tell you the truth, though, the only types you will probably run into are non-parity, SDRAM, and EDO, and EDO and SDRAM are the industry standards. All late model pentiums will come with what is known as PC-100 SDRAM. This is a special type of RAM that runs faster than older styles of RAM and is what you should look for when buying memory. The second thing you need to know about memory is the packaging styles. RAM comes in three different packaging configurations--DIP (Dual Inline Packaging), SIMM (Single Inline Memory Module), and DIMM (Dual Inline Memory Module.) The only types you sill probably ever run into though are SIMM's and DIMM's. SIMM's are a common type of RAM in older computers (the earliest computers through probably the 200 mmx's), and DIMM's are the most common modern memory modules. There is not a whole lot of difference between the two types of memory that you should really be concerned with, but you should buy DIMM's if you are building the ideal system I laid out earlier (For those of you who know more I realize that this ignores some major differences between the memory types but the differences are technical and really rather unimportant to a beginner.) The final thing that you will need to look at when purchasing and installing RAM is the speed at which it runs. First you need to ensure that the memory is running at the right clock speed. For late model mmx's and all Pentium II's you should be looking at PC-100 SDRAM with a clock speed of 100 MHZ (The reason for this has to do with the way the memory interacts with the computers main BUS but this is unimportant to a beginner.) The second number dealing with speed that you need to be concerned with is its page speed. The actual number is unimportant since any speed should work in just about any computer but you want the smallest page number possible (a typical speed would be 60 nanoseconds) for the highest speed. Overall just make sure to quickly refer to your motherboard manual to make sure that the RAM you're looking at will work with the motherboard that you have
Hope this helps, theres some more info on RAM at the site, but this paragraph should hopefully answer the majority of your questions
July 2nd, 2003, 06:33 AM
here are some review on LCD/TFT flat panel monitors ..
LCD screens are broken into two categories (TFT) and (STN) ...
Folks There is 2 type of LCD in the market: TFT and STN
If you see a 5.6" LCD monitor under 80$ it is NOT a TFT SCREEN.
Don't trust anybody that sells a screen at low price telling something like:
High Resolution but they don't specify that is TFT technology.
Actually the most distinctive difference between STN and TFT is the viewing angle.
A common TFT LCD screen has a viewing angle of L/R 60 degree; Up 15 degre; Down 25 degree, while a STN less than 15 degree in all direction.
The difference coming next is the color, the color of a TFT is sharp, bright and real.
The Industry called TFT true color while STN false color.
more info :
http://www.cs.arizona.edu/japan/www/...94/lcd.94.html(Various LCD developments.)