Even though many of us are very familiar with the computer use, some details of computer are sure good to know. One of them is the usage of the memory of the laptop. Laptops generally have two slots available for memory modules compared to four or more in desktop systems. This means that they are more limited in the amount of memory that have available.
First, find out what the maximum amount of memory is. This is generally listed by most of the manufacturers. This will let you know what upgrade potential the system has. Upgrading the two module situation with a 2GB upgrade would result in the loss of one 1GB module and a memory total of 3GB.
Next, determine how the memory configuration is when you buy the system. For example, a laptop that has 2GB of memory can be configured as either a single 2GB module or two 1GB modules. Some ultraportable systems are even fixed with one size of memory that cannot be changed at all. So what is important to know when you look at a laptop?
With current memory module technologies, this restriction generally comes to four gigabytes of RAM in a laptop based on 2GB modules. The single memory module allows for better upgrade potential because by adding another module you are gaining more memory without sacrificing any current memory. Newer DDR3 memory can go up to 8GB but this is extremely expensive at this time.
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