Screen size
Diagonal of the screen installed in a monoblock (see "Type").
In general, the larger the diagonal, the more advanced both the screen and the computer as a whole are considered. The large display size is convenient for games, movies, and some special tasks like layout of large printed materials; in addition, a higher resolution can be provided for such a screen, and more space is available inside the case for advanced components. On the other hand, a larger monoblock will cost much more than a relatively small one, even if the other characteristics of such models are completely the same. In addition, the power of the hardware is not directly related to the size of the screen — high-end monoblocks can be quite small.
As for specific numbers, a
diagonal of 20" or less is considered very limited nowadays,
monoblocks of 21.5" are small,
a 24" screen is medium, and values of
27" and
32" indicate large sizes.
Brightness
The maximum brightness provided by the monoblock screen (see "Type").
The more intense the ambient light, the higher the screen brightness should be for normal visibility. The most "dim" screens in monoblocks are capable of delivering up to 200 cd / m2 — this is more than enough to work under ordinary artificial lighting, but under sunlight it will take at least 300 cd / m2. At the same time, modern monoblocks can also have a larger margin of brightness — in some models up to 500 cd / m2. This expands the possibilities for customizing the screen for different situations and user preferences. In addition, high brightness has a positive effect on image quality and colour saturation, in light of which it is often a sign of a fairly advanced screen.
Max. memory support
The maximum amount of RAM that can be installed on a computer. It depends, in particular, on the type of memory modules used, as well as on the number of slots for them. Paying attention to this parameter makes sense, first of all, if the PC is bought with the expectation of upgrading RAM and the amount of actually installed memory in it is noticeably less than the maximum available
So the amount of maximum installed memory depends on the number of slots in the PC and can be from
16 GB(a modest PC) to
64 GB and above. The most popular on the market are
PCs with a maximum installed 32 GB of memory.
mini-Jack (3.5 mm)
The presence of a mini-Jack connector (3.5 mm) on the front panel of the PC. More precisely, in ordinary desktop PCs, gaming systems and monoblocks (see "Type") there are most often two such connectors: one plays the role of an output for headphones, speakers, etc., the second plays the role of a microphone input. But in compact devices like some mini-Jack nettops, there can be only one — a universal port, in which you can turn on both headphones / speakers and a headset with one common plug for a microphone and “ears”.
Anyway, such connectors are closer to the user and are more convenient to connect than similar sound card outputs on the rear panel of the case.
Keyboard and mouse
The presence of
a keyboard and mouse included with the PC. This configuration eliminates the need to purchase these accessories separately, and the bundled peripherals, by definition, will be optimally compatible with the computer. On the other hand, it is worth considering that the kit usually includes fairly simple keyboards and mice; For a demanding user - for example, an enthusiastic gamer - such equipment may not be advanced enough. Also, input Devices may differ in connection method.
- Wired. Wired keyboards and mice are inexpensive and do not require their own power sources - that is, they provide unlimited operation time, without the need to change batteries or charge the battery. In addition, they are suitable for even the most inexpensive PCs that are not equipped with Bluetooth or Wi-Fi wireless modules. The disadvantages of this option include: firstly, the actual presence of a wire, which limits mobility and which sometimes has to be pulled through hard-to-reach places; secondly, the need to have free ports for connection. At the same time, these shortcomings are not so often critical, so most modern PCs with input Devices are supplied with wired accessories.
- Wireless. Wireless keyboards and mice provide the user with additional convenience: they allow you to move freely within a radius of at least a few meters from the computer, without worrying about how to place the wire the next time you move. On the
...other hand, such input Devices are noticeably more expensive than wired ones; their operation requires a power source - batteries or an accumulator, and the operating time from such a source is limited (although it is often measured in weeks or even months). In addition, to use wireless peripherals, the corresponding connection interface (most often Bluetooth) must be supported by the computer itself, which is not the case in every configuration. Therefore, wireless accessories are included in the package much less frequently than wired ones.PSU power
The power of the power supply installed in the PC.
Theoretically, if you buy a ready-to-use computer, the power of the block installed in it is guaranteed to be enough for the normal operation of the system. However, even in such cases, it's ok to pay attention to this parameter: other things being equal, a more powerful PSU provides an additional margin in case of high loads and emergency situations. And if the system is bought understaffed (for example, without RAM or a drive), or it is planned to be upgraded (especially with the installation of “gluttonous” components like a discrete graphics card), you should definitely clarify whether the PSU has enough capabilities for this. The power of the power supply should definitely not be lower than the power consumption of the system, and ideally it should exceed it by at least 100 – 150 W — again, in case of unforeseen situations.
Also, this parameter must be taken into account in some situations when catering — for example, when calculating the total load when connecting a computer to an uninterrupted power supply (UPS).
