The 1×1 of IT & Aerospace - our glossary

Fake sender IDs in email correspondence have become a plague - mainly because they are so easy to forge. In principle, any layman can create a new 'war name', a 'pseudo', in the browser. The astonished users then often receive...

Google introduced its AdWord system in 2000. AdWord is an artificial word made up of 'advertising' and 'keywords'. Google's customers pay to have their advertising displayed to the side of the results form in the form of snippets with...

The German government is funding the Bremen-based cooperation network 'ARtisan' to make the regional skilled trades sector more future-proof. The two capital letters 'AR' in the name stand for 'augmented reality'. At first glance, this term seems...

Blade servers are based on the idea of operating several computers on a single power supply, on a single shared storage medium and with a single ventilation system. This saves space, energy and simplifies the system architecture. Like 'blades', the...

A cluster is a computer network consisting of networked IT machines. Different forms of networking are used depending on the intended use. A high-availability cluster (HAC) ensures constant availability and a high level of reliability. If a node...

Marketing on the web has become a confusing affair and the old laws no longer apply. The new currency on the web is called cost-per-click (CPR): The advertiser now only pays for those customers who actually access their offer, and no longer for the...

The good old 'advertising prices' have become pretty irrelevant on the Internet. Advertising is done with banners, and payment is based on the number of mouse clicks. The click-through rate (CTR) has thus become the new key figure in Internet marketing. If, for example, a page with a...

The 'Random Access Memory' (RAM) is the 'direct access' or 'working memory' that performs the main work in computing processes. A single RAM module has fewer pins than the bus width of the 'words' that are to be processed. Since this 'word width' - i.e....

The best-known data execution prevention (DEP) is found on Windows computers. This is a method of preventing the launch of unwanted or malicious program code. The DEP allows programs to...