In our earlier article, we have mentioned that within marketing market communication, direct marketing is any advertising measure that contains a direct approach to the potential customer with an invitation to respond. The next stage in marketing is direct sales. Direct marketing promotions can take a variety of forms. These are divided into one-step or multi-stage actions. Direct … [Read more...]
Strengths and Weakness of Direct Marketing
Within marketing market communication, direct marketing or direct response marketing is any advertising measure that contains a direct approach to the potential customer with an invitation to respond. The next stage in marketing is direct sales. Direct marketing promotions can take a variety of forms. These are divided into one-step or multi-stage actions. The number of customer contacts made is … [Read more...]
Bus Terminal Basics
A bus terminal is an advanced terminal block that can process different analog and digital input and output signals. It is housed and wired in a simple and compact way like a conventional terminal block, but unlike the terminal block, it has intelligent electronics. In control cabinets and terminal boxes, bus terminals with bus couplers such as EtherCAT or SERCOS are increasingly being … [Read more...]
Loopback Address in the Internet Protocol
A loopback or loop circuit is a message or information channel with only one endpoint. The transmitter and receiver are identical in the loopback. There are many applications for loopback. For example, communication technology usually uses loopbacks to check the accessibility of a destination: If the sender sends the information 1111 and the receiver sends 1121 back, something is wrong with the … [Read more...]
Progressive Enhancement in Web Design
Progressive enhancement describes a method in web design that includes accessibility, semantic markup and separation of information and presentation in order to make a website usable for devices that only have limited functions. This also speeds up the loading process by instantly transferring text content through the HTML source code instead of waiting for JavaScript to execute, making it easier … [Read more...]
FIFO: First In – First Out
First In – First Out is the sequence in which certain tasks are processed or completed one after the other. In accounting, this is called a consumption sequence method, in computer science it is any method of storage in which those elements that were stored first are also taken out of the memory first. In the field of merchandise management, FIFO is the usual procedure, because the oldest … [Read more...]
Why is Inode Used in Linux
An index node is the basic data structure used to manage file systems running Unix-like operating systems. Each inode is uniquely identified within a file system by its inode number. Each name entry in a directory refers to exactly one inode. This contains the metadata of the file and refers to the data of the file or the file list of the directory. The application software no longer … [Read more...]
How HTTP ETag Works
ETag (for entity tag) is a header field introduced in HTTP 1.1. It is used to determine changes to the requested resource and is mainly used for browser caching, i.e. to avoid redundant data transfers. The ETag value is an arbitrary string enclosed by quotation marks, which can also be indicated as a weak ETag by the prefix "". RFC-7232 states that ETags should be content-coding aware. … [Read more...]
Browser Cache Management
In our earlier article, we have informed that browser cache is a buffer memory of the web browser in which resources that have already been retrieved and stored on the user’s computer as a copy. When a resource is required again, it can be retrieved from the cache. A web server should provide cache information for each individual resource in order to ensure an up-to-date display for the user and … [Read more...]
What is Browser Cache and How it Works
Browser cache is a buffer memory of the web browser in which resources that have already been retrieved (e.g. text or images) are stored on the user's computer (locally) as a copy. If a resource is needed again later, it can be retrieved from the cache more quickly than if it had to be downloaded again from the World Wide Web. Every time the content of a URL is needed to display a page, the … [Read more...]
How Middleware Works
Middleware is an extra layer between the operating system and applications. In computer science, middleware refers to application-neutral programs that mediate between applications in such a way that the complexity of these applications and their infrastructure are hidden. Middleware can also be thought of as a distribution platform, i.e. a protocol (or bundle of protocols) at a higher level than … [Read more...]