General Technical Knowledge Base

GUIs are visual interfaces for operating devices.

Backup (data protection) refers to the copying of data with the intention of being able to copy it back in case of data loss.

Cryptography is the encryption of information of any kind.

ACL is a software technique for limiting access to data and functions by operating systems and application programs.

CEC (Consumer Electronics Control)   Definition Consumer Electronics Control (CEC) provides cross-component control functions such as One Touch Play/Record, System Standby, Preset Transfer, etc. for electronic entertainment devices. The CEC interface is derived from AV-Link, which has been the predominant control standard in Europe to date.   Ideally, this allows a maximum of 15 devices (e.g. TV, radio, CD player, amplifier, etc.) to be controlled together across manufacturers, provided that all networked devices support CEC. An essential design basis is the TV set as the destination of all signals and the remote control of the TV set as the control of the entire system. Due to this one-screen approach, problems inevitably arise with HDMI distributors and in multi-room systems because there are naturally several destinations, but this is not provided for with CEC when addressing it. Apart from the general abandonment of CEC, this problem can only be solved by systems that allow the isolation or routing of CEC traffic independently of audio and video signals.   CEC uses a simple serial, single-wire data bus, such as is optionally available with HDMI connections (on <pin 13). The nominal data bit duration is approx. 2.4 ms, which corresponds to a data rate of approx. 417 bit/s. The connection is established and the CEC capability is checked in the course of the EDID handshake during the hot-plug event. This takes place when the units are switched on or when an HDMI plug is inserted into an HDMI socket. References Wikipedia: https://en.wikipedia.org/wiki/Consumer_Electronics_Control Article in other languages: Deutsch  

Electrical circuit fuse.

The RCA connector is a type of electrical connector commonly used to carry audio and video signals.

SATA was created for connecting devices within a computer.

The AUX input is an analogue input for stereophonic audio signals.

S/PDIF (Sony/Philips Digital Interface) is a digital data transmission.

Bluetooth is a wireless technology standard for exchanging data over short distances.

Binary System. Overview of usage.

Information about our known nurmeral system.

A WWN or WWID is a unique identifier used in storage technologies.

A WWNN is a World Wide Name assigned to a node in a Fibre Channel fabric.

High Definition Multimedia Interface (abbreviated HDMI) is an interface for digital image and sound transmission in consumer electronics developed since mid-2002.

NCQ enables several requests to be sent to the hard disk at the same time and the hard disk at the same time and the hard disk then decides for itself in which order it will process them.

A WWPN is a World Wide Name assigned to a port in a Fibre Channel fabric.

A wide-angle lens refers to a lens whose focal length is substantially smaller than the focal length of a normal lens.

A rechargeable battery is a type of electrical battery which can be charged, discharged into a load, and recharged many times.