Isn't it annoying when you try to copy something on your PC,and suddenly an error regarding your low memory comes up?

That is because the computer has a limited amount of memory,given by the size of the HDD(Hard Disk Drive).The HDD is a piece of computer hardware that stores digital encoded data.The data is magnetically encoded,by a motor-driven spindle that has one or more rotating rigid platters.Disk capacity is measured in a standard 1000 unit,so 1Terrabyte will mean 1000 Gigabytes,1 Gigabyte will mean 1000 Megbytes,and so on.



The first HDD was developed by IBM in 1956.Since then,the HDD has been improved,so modern hard disk drives use a high-speed serial interface like Serial ATA (SATA) or Serial Attached SCSI (SAS).

If you need more memory although you cannot afford to delete some of the disk's curent files,you can alway add another HDD to the system.This can be done by connecting another HDD to the computer's power suply and motherboard.Every computer has a number of HDD it can afford,determined by the number of available slots.However,if in imposibility to add another drive internaly,you can always consider adding a portable HDD,connected to the PC by USB.This will make the system detect a removable disk,such as a flash drive (stick).As it's name says,the greatest advantage of a external(or portable) drive is it's portability.You can think of it as one giant flash drive.

In choosing a HDD,you need to be aware of some details.For starters,let's take the size.This is a HDD's main characteristic.It shows you how much data you can store on it.Today,hard drives come with various sizes,like 300 GB,or 500 GB,and so on.Modern HDDs can store an impressive ammount of 2TB(Terrabytes),which means 2.000 GB.The variety allows you to chose what size is suitable for your needs.For example,let's say you are somebody who doesn't acces the computer more then twice a week.In this case,you do not need your HDD bigger than 300 GB.



But if you are someone who frequently uses the PC and downloads a huge amount of data,you can get something bigger,like 500 or more.In case you are very messy and can't limit your data to wht is important,you can add a 1 TB HDD to the system.Some people just can't be pleased with 1000 GB.These people can get 2000 GB.As time flows,there will always be attempts to make bigger HDDs altough it's not so sure somebody will ever need more than 1 or 2 TB capacity.

Another important detail is the writing speed.This tells you how fast your drive can transfer data from one place to another.Even tough a HDD can store 1 TB, this doesn't mean that it can transfer an entire TB at once.It has a writing speed determined by the size it can transfer in a time ammount.For example,a HDD can have a writing speed of 24 MB/s (megabytes per second).This means that in one second,the maximum size the HDD can transfer is 24 MB



This  SATA 2 interface HDD is developed by Samsung,and had a total size of 1 TB.With 7200 rpm(rotations per minute),32 MB buffer,and a 300 MB/s writing speed,it is a great device to store your data.Be sure that you will no longer have problems storing your music,games,movies,documents,and other files.

The video graphics card(also known simply as Video Card) is and expansion card that generates visual output  to a display.More recent cards have other functions and capabilities as well,such as TV-tuner adapter,Light Pen,FireWire,multi-monitor(the ability to connect more than one monitor to the same card) and others.

Video graphics cards are using GPUs (Graphics Processing Units) and they can be found on mobile phones,personal computers,embedded systems,gaming consoles,etc.It could also come up as VPU (Virtual Processing Unit) and it's job is to offload the graphics that the microporcessor is rendering in 2D or 3D.



A video card can be connected to the motherboard through several types of slots,such as AGP,PCI-X,PCI-Express,PCI-Express 2.0 and others,but more recent models usually connect to a PCI-Express or PCI-Express 2.0 slot.Some motherboards come with integrated graphics,commonly known as on-board graphics.These on-board graphics have a small quantity of memory,therefore they take an ammount of RAM memory from the system.An on-board graphics card is no good for aplications that require 3D rendering,or games due to its poor processing capacity.

Old cards have very little memory,commonly 16 or 32 MB of RAM.Modern cards on the other hand,come with and internal memory tat ranges from 128 MB up to 4 GB.Video cards use a high-speed memory such as VRAM,or WRAM,so it can be accessed by the GPU and circuitry.After 2003,producers introduced DDR memory,followed by DDR2,GDDR3,GDDR4,and even GDDR5.

All those rendered graphics have to use an output to get to the monitor,or display.The most common video outputs are VGA(a.k.a DE-15),DVI,VIVO,and so on.Lower you have a photo representing a 9-pin VIVO,a DVI,and a VGA output (in order of appearance from left to right).

The last years found ATI and Nvidia in a battle for graphics supremacy,both huge companies surprising the customers with faster and more powerful products each year.Their battle is also a part of the console war,as one develops the GPU for Sony's PlayStation and the other for Microsoft console,XBOX 360.

ATI Technologies
Acquired in 2006 by AMD,it is now known as AMD Graphics Product Group,and it's one of the biggest graphics card producers alongside Nvidia. ATI developed various series of graphics card,such as  the Rage series,Match Series,or Mobility Rage,However,the most popular and successful serie is Radeon.



The ATI Radeon serie was launched in 2000,and is ATI's 3D Accelerator card serie.The first of the serie is called DDR Radeon and represents ATI's first DirectX7 3D accelerator wich also introduced ATI's first hardware T&L engine.Later on,ATI expanded to console graphics,developing the Flipper GPU for Nintendo and Xenos for the XBOX 360.

Nvidia
The most popular serie of the company is the GeForce serie,named so by the public after a contest held by Nvidia.This graphics card serie has a large variety of generations.The first GeForce generation was GeForce 256 launched in August 31,1999.Soon after that came others such as GeForce 2,GeForce 3,GeForce 4,GeForce FX,Ge force 8,9,200 and 400 series.Altough the battle is tight,it is considered that Nvidia produces products more suitable for gaming,due to their implemented technologies like Nvidia PhysX and many other.

In case you like to play the newest and more complex video games on your computer, you already know that you need a really powerful PC in order to enjoy the games at their best quality. You need a really good processor, a big RAM memory, a large hard drive, a good display screen and also a powerful video card.

So for today we’ll discuss about some of the best video cards for gaming, and one of them is the VisionTek - ATI Radeon HD 5870 1 GB GDDR 5 PCI Express Graphics Card, Model: 900298. this is also a really expensive video card, and it can be found at Best Buy for a price of 390 dollars.



In case you have a good and large display screen you will be able to enjoy the video games in stunning realism, and this video card features up to 2560 x 1600 maximum digital resolution and DirectX 11 support. The ATI Stream technology offers fast response and it also has 7.1 audio support for a great sound. This video card is powered by the ATI Radeon HD 5870 graphics processing unit (GPU), for  high performance gaming and other demanding applications. It has a really good memory of 1 GB GDDR 5 and it uses the PCI Express x16 interface (with PCI Express 2.0 support for high speed visual processing). It also has the ATI Avivo HD technology, so it allows you to connect the PC to High Definition displays with High Definition audio capability. It also has the ATI Eyefinity technology for supporting multiple displays, and it supports a variety of video formats, including MPEG 1, MPEG 2, MPEG 4 and H.264 video. As we said it has DirectX 11 support for great images and textures, the ATI CrossFireX technology, 7.1 channel audio support and also a dual link DVI connector.

So now let’s discuss about another of the best video cards for gaming, the PNY - NVIDIA GeForce GTX 470 1.25 GB GDDR5 PCI Express Graphics Card, Model: VCGGTX 470 XPB. This is also a very good video card, and of course an expensive one too with a price of 380 dollars. This one is powered by the NVIDIA GeForce GTZ 470 graphics processing unit (GPU) for playing even the most demanding video games. It has an even better memory of 1.25 GB GDDR5 and it uses the PCI Express 2.0 interface. It has the NVIDIA PureVideo High Definition technology which offers compatibility with Blu-ray Disc for high definition images. The great sound is offered by the NVIDIA 3D Vision Surround support.



Thanks to the NVIDIA SLI ready you can connect multiple video cards to your PC, for having an even better performance. This one also has Microsoft DirectX 11 support as well as NVIDIA CUDA technology with CUDA C/C++, DirectCompute 5.0 and OpenCL support. It has 2 dual link DVI I connectors, and finally the NVIDIA PhysX technology offers support for a dynamic and realistic experience.

So here were 2 examples of some of the best video cards for gaming on the market. But of course there are many more other models. So in case you know some other that are really good and worth buying, tell us all about them. We wait for your comments and until then, have a nice day!

A computer has different components. The components can or can’t be seen. The component that we can see is the computer hardware and the component that we can’t see is the software component. Computer hardware is incorporated in a PC unit on the main board. The main feature of a computer is that it can store data. Computer industry is very advanced because companies try to make the best things there are. This way they can keep their clients now and in the future.

They know that if the clients are happy they won’t go to another company to buy something and they will be devoted to their company. It is very hard to keep a customer satisfied because he can change his mind very quickly. That is why the companies always try to find methods to keep him happy with the offers they have and always try to give him something that will make him tell others about the things the company has.



The computer is a very special calculator. We can store data and we can keep our files intact. There are lots of things that we can keep on the computer hardware like: pictures, music or videos. Computer hardware is the component of the computer that we all can see and we can touch. For its security, the components are hidden behind a case that protects all the components. Also, if you need to replace a component you can simply remove the case and replace the component you want.



Everyone has different information that he wants to store on the computer. That is why it is a good thing that nowadays there are hard drives that can store a great amount of data. In very small packages, you can store all the information you need. It doesn’t matter if you want to store music, movies or pictures. On a hard drive you can store everything you want. When the hard drive fills up it would be better to delete some of the things we have on the computer so we can make room for others. That is why companies invented storage devices that can help us keep our data intact and for a very long time. In case we need some files that we have on the computer on a later time, we can deposit them on a CD, DVD or on a memory stick.

The first computer was very big. Computer hardware was the one that was very large. It was the size of a room and it always needed several people to operate on it because it broke very often. Now, computers are very small and they fit in a small box. Computer hardware industry evolved and scientists created smaller sizes for hardware but with a bigger space to deposit data.

It is hard to stay in touch with technology. It evolves everyday and if we lose a step we will no longer be in the loop. Nowadays, everything changes, everything evolved. If you are no longer in touch with technology some people might say that you are old. It is not entirely true. It is hard for some people to know everything there is to know about technology and how it advances. Let’s take for example computers.

It is very hard to keep up with all the information about computers. Companies always invent something new or they upgrade something else. You will never be able to keep up because thing evolve so quickly that you can stay up for a few weeks and you still won’t be able to know all there is to know. The good thing is that no one forces us to know something we don’t want to. If we don’t want to know information about computers no one says that we must. Besides, not everyone can use a computer. There are people that have to know all there is to know about computers because they are the ones who have to repair them when they break. Also, there are people that know very well how to write a software that can do different stuff and they also they have to keep in touch with technology.



Computers have two major components: computer hardware and computer software. Computer hardware is made from all it visible components. All these components are incorporated on a main board that is powered electrical and it makes the connections between all the others components. When we buy a computer we don’t see all these components because they are hidden in a PC unit. This unit has the role of protecting these components.

If you buy a computer made by parts and you have warranty on everyone of it, you can easily upgrade your computer without going to a service. If you want to upgrade your video card for example or buy a new one you can find online all the information you need. You can search for the model you are interested in and you can see if it is compatible with your main board. Not many people are interested in this component. Only those who manufacture them have the most advanced knowledge about them.



The rest are amateurs who try to become better. The other major component of a computer is computer software. Unlike computer hardware, we can’t see computer software. In computer software we include all the applications that we use on our computer. All the things we use every day like Winamp, Yahoo Messenger, Mozzilla, Microsoft Word or any other application is a part of the computer software.

In conclusion, not everyone has to know that many information about computers. We are not forced to learn anything we don’t like. If we want to buy a computer or to upgrade the one we have we can ask a friend for help or we can call a professional.