Definitions

A proxy server is a program that stands between an internal network and the external Internet, intercepting requests for information. A proxy is generally part of a broader solution to internal network security called a firewall. The purpose of a proxy is to prevent external users from directly accessing resources inside the internal network or knowing precisely where those … [Read more...] about Proxy Server

Technipages Explains Proxy Server

A proxy makes it hard for cybercriminals and hackers to exploit loopholes in the servers and related application, gaining unpermitted access into the network, this is done by disguising the location of the parent server of the information. Fighting cybercriminals and hackers comes at the cost of having slower performance, configuration troubles on the client who wants to use the external internal.

Before a request from a proxy is completed, the proxy intercepts a request for information, then ascertains whether the request can be fulfilled, and then relays the request to an internal server, during all this while the address of the data is not revealed to the requester of the information.

On online platforms, such as American Online, when platforms clients and users visit a webpage, a server is configured to store such web pages. So when clients request these pages, the server provides the stored copy instead of requesting the same page from the external internet. The downside to this is that the stored pages may be out-of-date even though the clients now see webpages faster and a lighter load on the network.

Common Uses of Proxy Server

• Connecting to the internet through a proxy server makes it hard for anyone to track because a proxy server makes it hard to pinpoint one’s location
• Proxy servers act as a stand between a client’s computer system and an external internet for exchange of information and data
• Nowadays, we use proxy servers for various purpose like sharing internet connection on a local area network and hiding our IP (Internet Protocol addresses)

Common Misuses of Proxy Server

• Frequently visited pages do not get stored on a proxy server, they are requested anew from the external internet
• Pages stored on a proxy server are being refreshed continuously to keep them up to date, they don’t get out of date

Packet Switching Network is one of two fundamental architectures for the design of a computer network; the other is a circuit- switching network. In a network such as the Internet, no effort is made to establish a single electrical circuit between two computing devices; for this reason, the connection established is often called connectionless. Instead, the sending computer … [Read more...] about Packet-Switching Network

Technipages Explains Packet-Switching Network

Packet switching Network is the building block of the internet; they are digital structures for sending data from a network to another in smaller bits called packets, this helps to reduce the time for transfer of files and also reduce delay in transmission.

When a data is transferred, a computer breaks down the file into packets to aid the transmission of the packets across the network which consumes less time, after the packets are received on the recipient computer, they are then reassembled.

The network IP address is recorded in a “header,” the header contains the network IP address of where the packet was sent from and also its destination network IP address. A header also keeps track of the number of packets a file was broken. After which the packets is relayed to a router machine, a router works out the best connection for a packet. On arrival, with the help of the header, the packets are reassembled. The breaking of the data into packets allows for it to be accessible to all the users in a network.

Common Uses of Packet-Switching Network

• The success and the benefits of using the internet are all hinged on the Packet Switching Network
• Packet switching network breaks down data at; they origin computer and re-assembles them at the period destination
• A router helps the packet switching network to relay packet between computers

Common Misuses of Packet-Switching Network

• When a packet switching network breaks data into packets, it is mostly not accessible by members of the same network.
• A packet switching network takes more time to be completed

The successor to Intel’s sixth-generation processors, including the Pentium II and Pentium III, this chip heralds the seventh generation of Intel processor technology. What is revolutionary about the is its deep pipelining architecture; it is implemented in 20 stages (compared to 10 in the Pentium III). This enables the chip to run at significantly higher clock speeds than the … [Read more...] about Pentium 4

Technipages Explains Pentium 4

Pentium 4 is a brand by Intel for a whole series of single-core CPUs for desktops, laptops, and entry level servers, it is a seventh-generation CPU, succeeding the sixth generation of Intel processors including Pentium 2 and 3.  The processors were produced from November 20, 2000 to August 8, 2008.

The standing out factor for Pentium 4 being its new chip architecture, which unlike Pentium 3 (implemented in 10 stages) is implemented in 20 stages. This is the underlying mechanism for the rapid processing speed of the chip. Pentium CPU clock rate ranges from 1.3 GHz-3.8 GHz while that of Pentium 3 couldn’t be pushed beyond 1.2 GHz.

This design came at the expense of Pentium 4 only being able to complete fewer executions per clock cycle, and this resulted in Athlon and Pentium 3 processors running faster than Pentium 4 even at their lower speed clock rate.

Intel engineers’ continuously improved Pentium 4 chip’s clock rate until the downside was minimal. Other improvements made on Pentium 4 include system data bus speeds of up to 533 MHz when used with Rambus RDRAM memory, improved branch prediction, two arithmetic-logic units (ALU) that run at twice the chip’s clock speed, and an expanded set of Streaming SIMD Extensions (SSE).

Common Uses of Pentium 4

• Pentium 4 brand of Intel’s single-core CPUs for desktops, laptops and entry level servers only ran for almost eight years
• The underlying technology for Pentium 4 lies in its new chip architecture, which is implemented in over 20 stages.
• Pentium 3 was succeeded by Pentium 4 which was supposed to be better, but it was only able to run few executions per clock cycle; eventually it was improved by Intel engineers

Common Misuses of Pentium 4

• Athlon and Pentium 3 even though they were executed over 10 stages eventually replaced the Pentium 4 design which was implemented over 20 stages, due to a design flaw
• Intel engineers only fixed Pentium 4’s trade-off of few executions per clock cycle, no other improvement was made.