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10 tips for buying a computer in 2021

Here's what to consider before buying a new computer in 2021.

Computers are an essential part of our daily life. Especially inOffice environments, but alsoat home you needfast PCsto work or to use multimedia services such as YouTube. When buying a computer, you should make sure that you get the right PC or laptop.

Unfortunately, computers are technical devices and therefore after a few years they are no longer state-of-the-art. When the PC was bought five years ago, it was still the best in its class, fast and quiet, today it can meet the requirements of many software programs ask, maybe no longer keep up.

If you need a new PC but don't know what to look for when choosing, you've come to the right place.We explain to you what is important when buying a computer in 2021.

Here's an infographic first:

1. PC or laptop: which makes more sense?

Perhaps you are still faced with the question of whether aStand PC or aLaptop better suited to you and your needs. First of all, you should ask yourself the following questions: Always work on thesame job, or sometimes in the company, sometimes in the home office, sometimes in a café? Work with a lotperformance-intensive Programs like CAD programs or are you a gamer? Do you need very powerful graphics cards? Or are light programs like MS Office sufficient for you?

Advantages of stand PCs:

    • Cheaper than laptops: the prices for good PCs start from 300-400 €
    • At any timeexpandable, since retrofitting graphics cards or hard drives is usually not a problem
    • Have stand PCsmore efficient at a better price / performance ratio and are better suited for large programs and games
    • Monitor, mouse and keyboard are freely selectable and do not necessarily have to be purchased again when changing computers
    • Stand PCs can be easily screwed on andclean

Advantages of laptops:

      • you areagile and can be taken anywhere
      • Laptops do not necessarily need an electrical outlet and can be used for up to 12 hoursBattery operationto run

Notebooks are harder to clean and upgrade. They usually have to go to the manufacturer for repairssent in which can sometimes drag on for several weeks.

High-performance laptops are more expensive than stand-alone PCs: good standard laptops, which are suitable for word processing programs and for surfing the Internet, start at € 400. If you really need the laptop to work or want to watch movies on it, you shouldn't spend less than 700 € on it.

There is also an alternative to the classic towerMini PCsthat are only the size of a small box. They can easily be placed on the desk next to or behind the monitor. Of course, this looks much better compared to classic computers and saves space (but be careful, the connection cables should be laid neatly!). You don't have to compromise on performance with Mini-PCs either. The only disadvantages are that they cannot be expanded individually and additional drives have to be connected externally.

2. The processor: the heart of a computer

Choosing the right processor determines thatOverall performance of the PC and is therefore an important factor when buying a computer.

What is a processor?


The processor is also known asCPU (Central Processing Unit). The CPU serves as the central processing unit to process commands. It is not only found in computers, but also in many electronic devices such as washing machines, dryers and other household appliances (Internet of Things, IoT 4.0).

The two best-known manufacturers of CPUs are Intel and AMD. Processors leadArithmetic operations off andTaxes Parts of the computer. Since the processor only understands binary codes, ie. only zeros and ones, every number or digit has to be rewritten into a binary code, which is then processed by the processor.

Therhythmor also the Clock frequency a processor determines the performance of the computer. The higher the clock frequency, the faster the processor processes commands. The speed of the rhythms is inhertz measured. One hertz is one cycle per second. Computers usually make noises when they are working. That's often what theFan responsible who has to cool the processor.

At high clock frequency speeds, high heat losses occur, which have to be compensated for by a fan. Otherwise the processor can be damaged.

Which processor is right for me?

You need to consider beforehand how much power you will need and for what purpose you will be using your computer. Is it a pure business PC with simple word processing programs? Would you like to use high-performance software such as CAD programs, graphics programs or a document management system? Or should it be a gaming PC? The more demanding the requirements, the more powerful processors should be chosen.

In order to increase the performance of processors, several processors are connected together without increasing the clock frequency. One then speaks of Multi-core processors. A distinction is made between single-core processors (Single core), Dual core processors (Dual core), Quad-core processors (Quad core), Six-core processors (Hexa-core) and eight-core processors (Octa-core), or a higher association.

As a rule, the more processors that are connected, the better the performance (there are limits here because the processors, in turn, have to be controlled!). Your new PC should therefore not have anything less than dual core. Are betterMulti-core processors. Intel makes good processors in different classes and differentiates between coresi3, Core i5, Core i7 and core i9. It is also important to differentiate between the processor generation within the i family: e.g. i7 - 7th generation, or 8th generation. There are clear differences in performance and power consumption here, and you should usually opt for a processor of the latest generation.

There are big price differences between computers with the respective processors.

Basically, PCs and laptops are suitable for good businessi5 processors. I7 is only required for intensive use and for games. Laptops with i3 processors will hardly be available on the market in 2020. The trend is therefore of course towards more powerful processors, which should be considered when buying a computer.

Tip: We recommend i5 or i7 processors in most cases.

3. RAM for more performance

Random Access Memory (RAM

The choice of RAM is also an important criterion for thespeed of the pc. The main memory should be used if possibledon't save, because when this becomes scarce and data has to be temporarily stored in other storage media, the work processes become much slower. With enough RAM, you can work more smoothly and relieve the system.

What is RAM?

The working memory is called theStorage in a computer that contains the programs or parts of programs to be executed and the ones required for themData contains. Theprocessor Accesses the RAM (or main memory) directly, so the size and performance are of decisive importance for the overall performance of the PC.

Also "R.A.M.“(Random Access Memory), all running processes and programs are stored on the main memorycached. A RAM module usually has1, 2, 4, 8 or 16 gigabytes of memory. 4 GB RAM is sufficient for very low requirements. However, we recommend for PCs and laptopsat least 8 GB R.A.M. RAM is proportionateCheap and can easily be used in stand PCsupgraded become. Our tip: Do not save on RAM, otherwise you will be annoyed by slow processes.

Tip: Under no circumstances save on the size of the RAM - 8 GB is a sensible figure for normal PCs.

4. Which hard drive is the right one? HDD or SSD?

HDD hard drive

While the processor is often referred to as the heart or brain of the computer, the hard drive is thatmemory. Will be on hard drivesdata saved. A distinction is made betweenSSD (Solid State Drive) andHDD(Hard Disk Drive) hard drives. Theclassic HDDs consist of one or moreMagnetic disks and one eachRead head. While the magnetic disks are in operationrotate, the reading head moves over the discs and reads out the stored data.

SSDs on the other hand consist of manyFlash memorywhich are also built into USB sticks. For some years now, SSDs have been used more and more because they are hugeadvantages have compared to the HDDs. Since no mechanical parts are built into SSDs, they are clearmore robust than HDDs. While defects and data loss are inevitable when HDDs fall, SSDs are clearless sensitive.

However, the most important factor in favor of an SSD is that itmuch faster works as a classic hard drive, namely up to two times. Also, are SSDslightermore efficient and thus use less battery. HDDs are cheaper than SSDs and offer more storage space. Nevertheless, we strongly recommend a high-performance SSD, also with a view to the future.

Sufficient for simple word processing 256 GB SSD, for more memory requirements512 GB SSD recommendable. If you should decide for a classic HDD, it is best to use at least one right away1 TB storage space, or choose the hybrid solution, oneSSHD.

Tip: With SSD hard drives you can work more smoothly and invest in the future.

5. Graphics card

Graphics cards are responsible for generating the graphics output, i.e. for rendering the individual images (also known as "frames"). In the graphics card is a graphics processor, for short GPU, installed. The GPU performance also determines the price of the graphics cards. The GPU takes over the delivery of the images that were previously communicated to it by the CPU (the processor).

When choosing the right graphics card is again the one aimed foruse crucial. Similar to the CPU, there are huge price ranges for graphics cards. If you are not a gamer or use other graphics-intensive programs, the built-in graphics cards are in most desktop PCs and laptopssufficient. These are mostly models that are a little older.

Nevertheless, they are able to meet the most common home and business applications. If yougraphics intensive Using programs like CAD programs, image manipulation or playing games then you should be into onehigh quality Invest in graphics card. As a rule of thumb, it can be said that the CPU and GPU should fit together. So computers with a strong CPU also need a graphics card with a strong GPU and vice versa. Otherwise the performance that is given by a strong CPU cannot be exhausted.

ASUS Nvidia Geforce RTX 2060 gaming graphics card

High-end graphics cards for gamers are manufactured by ASUS and AMD, for example. They are characterized by particularly high performance values ​​and are usually relatively expensive.

6. Interfaces

Make sure that the PC USB 3.0 / 3.1 and HDMI / DVI-Has interfaces. This is how most devices and monitors can be connected to the computer. Are optimalseveral USB interfacesso that you can connect the most common devices such as mouse, keyboard, printer and USB sticks in parallel.

7. The right monitor

If you need a new monitor, make sure that the PC has thematching interface owns. Monitors can usually be overDVI orHDMI connect to the computer. When choosing the right monitor, thesize important. Screens in office environments are usually a size of22“ – 27“ (Inch).

In addition, monitors differ in many factors. You should take care that the monitor anti-reflective is because monitors with a non-reflective coating can irritate the eyes after long periods of work. Other important features are the brightness and the reaction time. The response time should not be more than 5 milliseconds in order not to make work difficult. Brighter displays are better in bright environments.

There are height adjustable Monitors and those where you can use the Tilt angle can change. Height adjustability is definitely recommended for ergonomic work. There are now also monitors that blue light filter. Blue light is harmful to health in the long run, so this is another useful feature.

8. Operating system: already installed?

Many PCs already come with installed operating system delivered. This is mostly MicrosoftWindows 10 or 8, or at Apple for OS. Some PCs do not have an operating system pre-installed. You should pay attention to this if you need one and do not want to have additional costs.

9. PC accessories: mouse and keyboard

You also absolutely need one for a stand PCmouse and akeyboard. Are practicalwireless Keyboards and mice, because they only require a USB interface and there are no cables in the way. In theory, you don't need a mouse for laptops if the included touchpad is sufficient.

10. Quality pays off when buying a computer

Watch out forquality! In the case of computers, the sentence is correct:If you buy cheap, you buy twice. Because a wrongly configured PC is quickly noticeable. Very cheap PCs often come up with good performance data, but the components used are mostly processed cheaply and show defects after a short time. Then when you have to take your computer in for repair, it becomes expensive.

We therefore recommendhigh quality manufacturer use components from other reputable manufacturers. Among other things, we rely on the German manufacturer exone, which manufactures the devices in Giengen-Herbrechtingen. Your PC should also have atwo year guarantee (laptops usually only have a one-year guarantee). If you use a manufacturer from Germany, you are definitely on the safe side. Now you know what to look for in the first place when buying a computer.

As a system house, we would be happy to advise you which PC meets your requirements.

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