How to choose your desired laptop

When you want to buy a laptop course there are many things that need to be primed for your consideration not to see his brand. Each laptop any brand of the same strong and obstinate that famous and often also have problems like broken from it all, but all decisions must be viewed from what your needs for its application.

Here are tips and suggestions:
1. Make sure to what work will be used Laptops and any applications that will be installed so that you can prepare its budget, why would I say this because he later you would be wise to specify the options that suit your budget and limit choice unless you have lots of funds may choose a higher specification.

2. Choose Laptop with longest warranty period, and see what is in the warranty in the first year, two and so on read all the rules written on the card guarantees and choose which of his many services have a place not that many places services mean many are broken but that they are ready to serve you and facilitate you to repair and consultation of all your problems remembering things that laptops are often loyal to accompany you wherever you go, on your job especially if you are frequently out of town or out of the country so that all problems do not interfere with your work. 3. processor and memory is important because it must be balanced with the operating system and any applications you want to install . 

because if its fast processors but his memory is very small, or vice versa does not support to the working system of the laptop itself so it should be balanced ...
Suppose you want a laptop-based Celeron, Intel Core Duo, Core2Duo or AMD if its Windows XP operating system, at least you wear with memory ranging from 512 Mb and not more than 1.5 GB because not only will add to the budget was not balanced .. . except if its operating system has been using windows vista you may use more memory 2 Gb and also depending on the application software will be installed.
So I hope you are not wrong in taking a decision to buy a laptop like what best suits your own needs and expectations.

How to select a computer main memory

What is a computer memory? Contrary to the popular belief, the term computer memory includes not just the computer's main memory, so popularly known as the RAM but aslo includes other memory modules available in the microprocessor,motherboard, your video card and so on and even your hard disk, but it is more popular as the secondary memory.


Before we get to the business of selecting the RAM for your computer, lets get familiar about computer memory and the various types available.

So what is RAM anyway? RAM stands for Random Access Memory. Mark the Random - it means that the memory, unlike the other versions of electronic memory that we know of, like the tape or the hard disk, doesnt need to search for data sequentially. In other words, the time required to obtain any data remains the same regardless of its location.
The first and most important characteristic of RAM is that it is fast.
The second characteristic of the Random Access Memory(RAM) is that it is volatile. Which essentially means - no power, no memory.

Why do we need a computer main memory in the first place?
The microprocessor of your computer is slowed up by rate at which data is transferred to it. In the absence of a computer main memory, the data rate goes down even further, thus resulting in undermining the true potential of the processor.

How does the computer memory - main memory that is, differ from the other types of RAM available on the various chips? High speed RAM is found on various parts, like the microprocessor itself - e.g. L1 cache - What is that?
The microprocessor requires a high speed memory area wherein the instructions and data can be held – that’s the L1 cache (For the Intel Core 2 Duo E6700, the L1 cache is 128 KB). Apart from that, there is its more popular level, the L2 Cache – That holds the instructions that might be used shortly (For the aforementioned processor, it is 4 MB). Now, the same memory, if available on the motherboard is classified as the L3 cache.
So much for the various types of computer memory. And again, we haven’t touched on the memory available on the video cards/graphics adapters and the like.

(All that is fine, but what about the jargon, DDR, SDRAM, DDR2 and the like?) Lets cut the history and get ahead with SDRAM first. SDR SDRAM stands for Single Data Rate Synchronous Dynamic RAM.
“Synchronous” because it operates at the system bus speed.
DDR SDRAM – The DDR stands for “Double Data Rate”. Hence, it operates at double the speed of SDR SDRAM and hence doubles up as the most popular form of computer memory.
The higher version of DDR, the DDR2 has already dominated the memory market despite some competition from RDRAM (Direct Rambus) - which died down over time. Now of course, a DDR2 and its successors rule the computer main memory market.

Getting to the part of selecting the computer main memory –

1. What system are you using? As much as it sounds funny, RAM incompatibility with motherboard needs to be verified, especially if you plan to upgrade your system’s main memory.
2. What is your operating system? As the complexity of the OS increases, the RAM requirement goes along with it. Currently Windows Vista shows good performance with a 1 GB memory than with lower ones.
3. What programs do you intend to use? If you are the compulsive gamer type, or use high memory applications like simulations, graphics processing etc, you definitely need higher computer main memory. 2GB for most high profile simulations is the norm.
4. Pricing – Higher priced RAMs are priced higher than other main memory counterparts because of the stringent testing they go through, the density they possess and higher temperature capacity. Betting on the high priced memory modules is a pretty safe option.

As for the future of computer main memory, there is the Z-RAM with its high density and capacitor-less bit configuration, which should offer much more powerful options than the memory modules available today.