Standard 802.11n – WiFi 4 může komunikovat v obou pásmech (2,4 i 5 GHz) a díky technologii MU-MIMO (vícecestné šíření signálu) přináší solidní reálné rychlosti. Zde je důležitá právě technologie MU-MIMO, díky které dokáže WiFi router komunikovat vysokou rychlostí s více zařízeními současně.

Antireflexní displej je displej s povrchovou úpravou, která má zabránit odrazům okolního světla. Jak se ale liší od matného displeje, už nemusí být tak zřejmé. V tomto článku vám to vysvětlíme.

A dedicated graphics card is located on the motherboard of a laptop in the form of a separate chip. Compared to an integrated graphics card, it's more powerful, so it's better suited for playing games and working in graphics heavy applications. However, dedicated graphics cards require more efficient cooling and reduce battery life. They are usually found in larger and heavier laptops.

Aktivní reproduktor má v těle vestavěný zesilovač. Pasivní naopak vyžaduje ještě externí zesilovač nebo receiver.

Laptop adapters are used to power and charging a laptop's battery. In addition to the adapter provided by the manufacturer, it is possible to use other models. It is crucial to select an adapter with the correct connectors. What are the basic types?

Single-sided scanning. The device can scan only one side of the inserted document. To scan the other side, you have to flip and reinsert the page.

Luminous flux expresses the amount of light that comes from the source and is measured in lumens. Different wavelengths of light and the sensitivities of the human eye are taken into account. Simply put, more lumens means brighter light and less lumens means dimmer light from your lightbulb.

Elektroakustický měnič je článek akustického řetězu, který aktivně přeměňuje elektrický signál na akustické vlnění (samostatný reproduktor bez kabinetu), nebo naopak akustické vlnění na elektrický signál (mikrofon, snímač apod.)

A cache stores data for quicker acccess in the future. It's advantagous because it increases speed and shortens access time. They can be found in processors and hard drives.

During exposure you expose the camera sensor to light emitted by the captured scene. Exposure is defined by three basic parameters, which are sensitivity (ISO), aperture (F), and exposure time. The higher the maximum ISO and the lower minimum aperture, the less time you need to capture the shot and the easier it is to avoid blurring. This comes in handy if you like to photograph sports, racing, and other objects in motion, or like shooting night-time scenery.