Welcome to drigg-code.org

ï»¿The History of Writing Tools (history of writing tools) Writing tools are essential to written communication. A person is not able to write without the proper writing tools. However, many people donâ€™t realize that writing tools did not just pop into existence; writing tools have a long history. Writing tools have helped societies write their history and bring civilizations to life. The history of writing tools begins with the cave man that invented the sharpened-stone, which was later developed into the first writing tool. Cave men used these instruments to scratch pictures onto the walls of cave dwellings. The drawings were said to represent events in the daily life of the cave men, such as the planting of crops and hunting victories. Clay was later discovered, which made portable records possible, and many merchants of the time used clay token with pictographs to record the quantities of materials being traded and shipped. The Greeks developed the earliest form of pen and paper. They used the writing stylus, which could be made of metal, bone, or ivory, to make marks on wax-coated tablets. The tablets used by the Greeks were made in hinged pairs that were closed to protect the scribeâ€™s notes. Cadmus was a Greek scholar who seemingly invented the written letter, which is a text message on paper sent from one individual to another. The written letter proved to be a major event in the history of writing tools, and was the starting point for the development of ink. â€œIndian Inkâ€ was developed by the ancient Chinese society, and perfected for writing. The ink was originally designed for blacking the surfaces of raised stone-carved hieroglyphics, but was later used for writing. This early ink was made of a mixture of soot from pine smoke and lamp oil mixed with the gelatin of donkey skin and musk. By the year 1200 B.C. the ink had become common as a writing tool. Inks were also developed by other cultures, who used natural dyes and colors derived from berries, plants, and minerals to create them. The different colors of inks had ritual meanings attached to each color in early writings. In the history of writing tools the development of ink paralleled the introduction of paper. Early cultures such as the Egyptians, Romans, Greeks, and Hebrews used papyrus and parchment paper to write on. Romans invented a reed-pen for parchment and ink, from the hollow tubular-stems of marsh grass and the jointed bamboo plant. The bamboo stems were converted into writing tools that resemble the fountain pen. The plant was cut at one end into the form of a pen point, and ink filled the stem, by squeezing the reed, writers could force the ink from the point and write on parchment paper. The early forms of ink and paper were great developments in the history writing tools, but were often unstable. A stable form of ink was developed in 400 A.D., which was a composite of iron-salts, nutgalls, and gum. The ink was seen as having a bluish-black hue when applied to paper, but quickly becoming a darker black color, and fading after years and appearing as a dull brown color. The Chinese created a wood-fiber paper in 105 A.D., but it was not known to other cultures until 700 A.D. when the Japanese learned the secret. Eventually, the wood-fiber paper was brought to Spain in 711 A.D., but was not widely used in Europe, as most European societies did not use paper until the 14th century. The quill pen is also a major invention in the history of writing tools. The quill pen was introduced to the world in 700 A.D. The pen was made of bird feathers, and the strongest quills were typically taken from live birds from the outer left wing feathers. After the development of the quill pen, plant fiber paper became the popular medium for writing. Then another invention changed the history of writing tools; Johannes Gutenberg invented the printing press. This invention has led to various other developments in printing and writing tools. Writing tools are essential to writing, and without the development we would not be able to show others our ideas and thoughts.

Web Hosting - Bandwidth and Server Load, What's That? Two key performance metrics will impact every web site owner sooner or later: bandwidth and server load. Bandwidth is the amount of network capacity available, and the term actually covers two different aspects. 'Bandwidth' can mean the measure of network capacity for web traffic back and forth at a given time. Or, it sometimes is used to mean the amount that is allowed for some interval, such as one month. Both are important. As files are transferred, emails sent and received, and web pages accessed, network bandwidth is being used. If you want to send water through a pipe, you have to have a pipe. Those pipes can vary in size and the amount of water going through them at any time can also vary. Total monthly bandwidth is a cap that hosting companies place on sites in order to share fairly a limited resource. Companies monitor sites in order to keep one site from accidentally or deliberately consuming all the network capacity. Similar considerations apply to instantaneous bandwidth, though companies usually have such large network 'pipes' that it's much less common for heavy use by one user to be a problem. Server load is a more generic concept. It often refers, in more technical discussions, solely to CPU utilization. The CPU (central processing unit) is the component in a computer that processes instructions from programs, ordering memory to be used a certain way, moving files from one place to the next and more. Every function you perform consumes some CPU and its role is so central (hence the name) that it has come to be used as a synonym for the computer itself. People point to their case and say 'That is the CPU'. But, the computer actually has memory, disk drive(s) and several other features required in order to do its job. Server load refers, in more general circumstances, to the amount of use of each of those other components in total. Disk drives can be busy fetching files which they do in pieces, which are then assembled in memory and presented on the monitor, all controlled by instructions managed by the CPU. Memory capacity is limited. It's often the case that not all programs can use as much as they need at the same time. Special operating system routines control who gets how much, when and for how long, sharing the total 'pool' among competing processes. So, how 'loaded' the server is at any given time or over time is a matter of how heavily used any one, or all, of these components are. Why should you care? Because every web site owner will want to understand why a server becomes slow or unresponsive, and be able to optimize their use of it. When you share a server with other sites, which is extremely common, the traffic other sites receive creates load on the server that can affect your site. There's a limited amount you can do to influence that situation. But if you're aware of it, you can request the company move you to a less heavily loaded server. Or, if the other site (which you generally have no visibility to) is misbehaving, it's possible to get them moved or banned. But when you have a dedicated server, you have much more control over load issues. You can optimize your own site's HTML pages and programs, tune a database and carry out other activities that maximize throughput. Your users will see that as quicker page accesses and a more enjoyable user experience.

Web Hosting - DNS, How The Internet Keeps Track of Names The way computers communicate is, in a way, very similar to something very familiar: the postal system that delivers letters and packages. Here's how... The Internet is just what the name suggests, a large inter-connected set of networks. But those networks are pointless without the one part that forms what is called their 'end-nodes', otherwise known as computers. Those computers often need to share information because the people who use them want to share information. But, in a system where there are millions of separate computers, how can you enable them all to communicate? One very important feature of that solution is performed by something called DNS, the Domain Name System. Every part of a network that is going to send or receive information is assigned an IP address. That's a numeric identifier that uniquely specifies a particular 'node', such as a computer, a router that directs traffic or other component. They look like this: 209.131.36.158 But those numbers are more difficult for people to remember and work with. They also aren't very attractive from a marketing perspective. So, a naming system was layered on top of some of them, mostly the computers involved, though routers have names, too. But once you have a system that associates a unique IP address to a given name, you need some way of keeping track of all of them. That's carried out by several different pieces of the system: Name Registrars, DNS Servers and other components. The Name Registrars, overseen by IANA (Internet Assigned Numbers Authority) and other international bodies, provide and keep track of domain names. When you register with GoDaddy or any of a hundred other intermediate companies, ultimately that information makes its way into a number of specialized databases stored inside DNS Servers. A DNS Server is the hardware and/or software that tracks and forwards the IP Address/Domain Name pair from one place to the next. In many cases, there are a number of them between your browser and the remote computer you want to share information with. Suppose you request information from, say, Yahoo's site by clicking on a link on their site. DNS resolves (translates) the name of WHO IS making the request and OF WHOM, to addresses, then passes the request through the network to the requested IP address. The requested data is then passed back through the mesh of network components to your computer and displayed in your browser. Whether the communication is between a desktop computer and a server somewhere, or between one server and another, the process is essentially the same. DNS servers translate names into IP addresses and the requests for data are forwarded on. In some cases those DNS servers are part of a specialized network computer whose sole job is to do the translation and forwarding. In other cases the DNS software may reside on a server that also houses a database of general data, or stores email, or performs other functions. But however complicated the chain or the parts, the basic process is simple. Translate the name to an address, just as the postal system does. Whether international or local, your name is associated with an address, and the deliveries are made to the address, then forwarded to a particular name.