Things To Know Before Buying A New Computer
Everything you need to know before you go to buy a new computer, to be prepared on the components and internal parts
New computer tips
When we take the decision to renew our computer station, and then to buy a new computer, before rushing to the store should know a minimum of the basic terms and have in the head a smattering of computer science, so as to avoid being ripped off and not seem inexperienced. Today PCs and laptops do not have the exorbitant prices of a few years ago however, if you need some advice on which parts of a PC or on what type of laptop to buy, better be prepared at the time of purchase.
When you read a computer sales catalog or when you go to the store to talk to a salesperson or a seller, the things to know before buying the new PC, concern the components from which it is formed.
Things to know before buying a new computer
This is the brain of the computer, and it is also called the CPU. The main parameter by which processors stand out from each other is the speed that is measured in gigahertz; the higher the value in GHz, the faster the computer.
Until a few years ago it was much easier to understand which was better or worse because the value was more or less, unique. Today processors no longer put, in their name, the speed in GHz and one should not even consider one better than the other only on the basis of this value.
Today, the differences between the various CPUS can be included in the number of cores present within the same: a quad-core processor will be vastly faster than a dual-core processor, and so on, with the constant increase of the core content inside the CPU.
To give examples among the best-selling processor types we have the Intel i3 for the new low-end machines, i5, i7 and i9 used with the higher-end quad core processors and then AMD Ryzen processors, which often boast processors with 6, 8 or 12 cores.
The various chip families, then, differ according to the model, represented by a number such as 9700, which is updated from year to year (next year will be the 10700 series and so on).
Another important difference between the various processor models is the attack, that is, the connection or socket (for example LGA1200 for the latest intel, AM4 for AMD’s Ryzen), which must be compatible with that of the motherboard. In addition, almost all modern CPUs also integrate a graphics chip inside them, so you can immediately take advantage of the 3D animations and view some videos in high definition without having to buy a separate video card, excellent solution for office or studio PCs.
RAM (Random Access Memory) is computer memory, used to temporarily store data and recall it faster without going through the hard drive (which is physical memory). For RAM the speech is quite simple: from 8 GB of RAM you have a computer definitely fast, so let’s never go below this value if we intend to use a PC with Windows 10.
A lower RAM leads to slowdowns when loading so many programs, so the more RAM there is the better it is (a very good value for modern use is 8 GB, which adds little to the price of the PC but allows a considerable increase in the number of programs). The RAM is also upgradeable, so it is always better to check the number of RAM slots available and how many are already occupied so as to adjust for future updates.
3) optical drive, CD or DVD player and burner
The optical drive of the computer is now an option of laptops, nermmeno more so present on Desktop PCs. What you need to consider, is not so much the speed of reading or writing, but rather are the supported formats for reading and burning a DVD-R, DVD+R, DVD-/+R, DVD-/+RW, DVD-RAM, Blu-ray, HD-DVD.
What I recommend is to have a burner that reads, At least, all types of DVDs. Consider then that today there are also DL (Dual Layer) DVDs that can be written on both sides thus doubling the capacity. Newer formats such as Blu-ray allow you to burn and watch high-definition videos or store much more data, but both burners and discs cost much more, not to mention that the success of USB sticks and ultra-capacious memory cards has relegated the optical disc to a slow and inexorable decline.
4) Wireless network card
Wireless network card device
If your computer has a wireless card, it will be possible to access the internet wirelessly and without cables by connecting directly to our WiFi modem router. The modern network cards can be external (USB card) or internal (PCI-E), in each case we have to pay attention to the type of protocol, and frequency WiFi supported: with the 2.4 GHz will have extensive coverage but is slower (especially in an area with lots of interference), while the 5 GHz we will have less cover but more speed. In addition to the frequency, you should keep an eye on the supported IEEE 802.11 protocols: IEEE 802.11 n is the minimum standard and can work on both frequencies, while IEEE 802.11 ac is the latest and allows you to reach really high speeds (over 800 Mbps).
5) Ethernet network card
Ethernet network card device
The computer should have an Ethernet port, the one where to insert the network cable for direct connection to the modem/router. There are no big variations, although with the arrival of optical fiber to 1000 megabits better to focus immediately on models with Gigabit Ethernet network card if we intend to use the cable.
6) The operation of system is the software
The operating system is the software that operates the complete computer; options include Windows, Linux, Chrome OS, and Mac OS.
When you buy a new computer in shopping centers there will definitely be Windows preinstalled while in specialized stores the installation of Windows will be required. The point is that Windows is an operating system that you pay for so, in pre-packaged computers, in the overall price, the user license is always present. When instead you buy the PC choosing the pieces one by one and you also require to install Windows, most likely you will have a counterfeit operating system (if its price is not present in the invoice).
More experienced people buy computers without operating system to save money and install it yourself also because today you can buy a Windows 10 license for a few
7) storage drive: Hard disk or SSD
The disk is the physical memory where you store data and files such as music, videos, photographs and documents.
On some recent PCs or smaller laptops, instead of the disk we can find an SSD or Solid State Drive and we have seen in another article what it means to have a Hard disk or an SSD.
In extreme summary, the SSD has no moving parts, is less likely to break and is much, but much faster than the hard drive (from 10 to 50 times faster!). For this reason, we can say that if you have to buy a new computer, the first thing to look at is if the SSD side-by-side in a hard drive is classic and not to buy absolutely a new PC that mounts hard drives only mechanical (maybe we can even buy it separately, but we’ll have to get us, however, a new Windows license).
8) video card
Video card device
This is the part of the computer that deals with how animations, images and colors are displayed on the screen.
On many modern CPUs the video processor is integrated into it (we talk about GCPU in fact), but they usually offer minimal performance for the interface, animations and video playback. If we intend to play or work with complex 3D graphics or photo editing programs, much better to bet on a dedicated video card.
In general, a video card can be produced by NVIDIA or AMD, the choice is based on when you want to spend and when you are fond of one brand compared to the other. Keep in mind that video cards sold by several other manufacturers, always have a chip NVidia GeForce. The basic ports today are: DVI, HDMI, DisplayPort and, optionally, VGA for older monitors (it is now disappearing). About acceleration can come out words such as: pixel shader, vertex shader, rendering (rasterization), anisotropic filter and antialiasing filter that you have to worry about only if you have to play the latest generation games. https://www.edulane.ng/