In computer science, a transaction is a sequence of program steps that are regarded as a logical unit because they leave the data stock in a consistent state after error-free and complete execution. Therefore, a transaction is particularly required to be executed either completely and error-free or not at all. Transactions are mostly used in database systems. Failed transactions must be … [Read more...]
Computer and Internet
Computer and Internet is catchall section of core computing categories including Cloud Computing, Digital Photography, Virtualization, Networking, Protocols and Others' which are not otherwise more subcategorized. Here also you will get unique articles and news on computer hardware, Software, Networking and Protocols.
What is PCI DSS Compliance
The Payment Card Industry Data Security Standard, commonly abbreviated to PCI or PCI-DSS, is a set of rules in payment transactions that relates to the processing of credit card transactions and is supported by all major credit card organizations. The current version of PCI-DSS is: V4.0 from March 2022. Merchants and service providers who store, transmit, or process credit card transactions … [Read more...]
What is Association Analysis
Typical tasks of data mining are Outlier Detection, Cluster Analysis, Classification, Association analysis, Regression analysis. These tasks can be roughly divided into observation problems (outlier detection, cluster analysis) and forecasting problems (classification, regression analysis). Association analysis refers to the search for strong rules. These consequent association rules describe … [Read more...]
What We Mean By Frontend and Backend
The terms frontend and backend are used in various places in information technology in connection with a classification of shifts. Typically, the frontend is closer to the user, the backend closer to the system. In some cases, this interpretation is not applicable, but the principle is that the frontend is closer to the input and the backend is closer to the processing. In the case of … [Read more...]
The gpg-agent in GnuPG
The gpg-agent is an important part of GnuPG that plays a similar role to the ssh-agent in OpenSSH. It has been integrated into the system as of GnuPG version 2.0.x and performs several tasks related to the management of keys and passphrases. One of the main functions of the gpg-agent is to store private key passphrases in memory for a certain period of time. This eliminates the need to re-enter … [Read more...]
What is GNU Privacy Guard (GnuPG)
GNU Privacy Guard, abbreviated GnuPG or GPG, is a free cryptography system. It is used to encrypt and decrypt data, as well as to generate and verify electronic signatures. The program implements the OpenPGP standard and was developed as a replacement for PGP. Versions 2.0 and later also implement the S/MIME and PGP/MIME standards. By default, GnuPG uses only patent-free algorithms and is … [Read more...]
How Key Server Works
A key server provides access to public keys, which are used in asymmetric cryptosystems to send encrypted messages to a person, such as by email, or to verify their signatures. In particular, a keyserver provides a convenient, though not always cryptographically secured, way to update keys, which is necessary to check whether a key is still valid or has been revoked. Many of these servers are … [Read more...]
Customer Profile and Data Mining
A customer profile is the data image of the purchasing behavior of an individual consumer. The transactions carried out with the customer are continuously stored in a data processing system and used for customer relationship management purposes. The customer profile enables providers, for example, to address advertising individually to the consumer who, based on his or her purchasing behavior … [Read more...]
What is Content Filter
A content filter is a program that is used to filter certain unwanted content (e.g. data, images, audio files, ...) before it can pass from one network to another. That's why a content filter is usually located at the interface to the input of the network and controls the data coming into the network before it can get into the network part accessible to the users. These content filters are … [Read more...]
What is Zero Trust Security
Zero Trust Security, also known as Zero Trust Architecture (ZTA), is an information technology (IT) security concept that assumes that no user, device, or network is inherently trustworthy. Unlike traditional security approaches, which aim to treat the inside of the network as trustworthy and control access from the inside out, Zero Trust Security emphasizes continuous verification and … [Read more...]
The 4 Ps of Marketing: Inside the Marketing Mix
The marketing mix is used to translate marketing strategies or marketing plans into concrete actions. The four classic instruments of the marketing mix are the so-called "four P's" (4P) – for Product, Price, Place, Promotion and "four C's" – for Commodity, Cost, Communication, Channel in the 7Cs Compass Model. Some authors add other "Ps" such as People/Personal, Processes or Physical Facilities to … [Read more...]