TechnoScience

DHCP is a client server protocol and it stands for dynamic host configuration protocol. It is used for network management protocol to dynamically assign an Internet Protocol address to any device on the network. So they can communicate using IP.  The primary reason DHCP is needed is to simplify the management of IP addresses on networks. No two hosts can have the same IP address, and configuring them manually will likely lead to errors. Even on small networks manually assigning IP addresses can be confusing, particularly with mobile devices that require IP addresses on a non-permanent basis. Also, most users aren’t technically proficient enough to locate the IP address information on a computer and assign it. Automating this process makes life easier for users and the network administrator.

  Image © Stack Overflow Init is a process in Unix-based operating system. It start at booting of the system. Kernel begin this process with proper requirements . It is considered as daemon process and it continues running until the system is closed. Init play important part in system. If the kernel fail to start init in proper way, the kernel panic will occur. Init is configured in /etc/inittab file where the runlevels are defined. Depending on the services in /etc/inittab, several scripts are run by init. The entire process of start and shut down the system is based on init. I nit is parent of all Linux processes with PID or process ID of 1. It is the first process to start when a computer boots up and runs until the system shuts down. In simple words the role of init is to create processes from script stored in the file /etc/inittab which is a configuration file which is to be used by initialization system. It is the last step of the kernel boot sequence.

  8x NVIDIA Tesla V100 32GB Server As we all know NVIDIA processor are so famous now a days. It give a perfect gaming performance and people used it worldwide. The thing is that it is not only use in personal computer but also at data center, where so many super computer are present for providing services. So, NVIDIA Tesla V100 is a first tensor core GPU. It is especially built to focus on AI, High Performance Computing ( HPC ) and graphics. It is powered by NVIDIA Volta Architecture. It comes with configuration 16 and 32GB and have a performance up to 100 CPUs in single GPU. A single server node with V100 GPUs can replace 60 CPUs nodes. DATA CENTER GPUs Image © NVIDIA NVIDIA V100 for NVLINK  Performance with NVIDIA GPU Boost for double precision is  7.8 teraflops and single precision is 15.7 teraflops. Deep learning performance boost is 125 teraflops. Interconnect bandwidth with bidirectional is 300 GB/s. It have memory capacity of 32/16 GB HBM2 with bandwidth 900GB/s. It consume 300

To understand nanites you have to know what is nanotechnology. So, Nanotechnology is a field of research and innovation concerned with buildings things - generally, materials and device in the scale of atoms and molecules. The ideas of nanoscience begins with the book "There's Plenty of Room at the Bottom" by Richard Feynman. The nanites are famous because sci-fi series like 'Revolution" NBC's series and Vin Diesel movie 'Bloodshot'. Nanotechnology are developed at that level yet. Nanites is name for Nanorobotics it also has other like nanoids. It is technology field creating machine or robots whose component are at or near nanometers ( 10^-9 meters ). Example of nanorobotics are sensor having a switch approximately of 1.5 nanometer, able to count approximately molecules in chemical sample and a amazing single molecule car, wheel made of Buckminsterfullerene also called as Nano Car.  Potential use of nanotechnology is in nanomedicines. Nanotechnology

image© Wikipedia Schottky diode is a semiconductor diode which has low forward voltage drop and a very fast switching speed. The junction between an aluminum and n-type semiconductor constitutes a diode, known as Schottky diodes. The aluminum n-type Schottky diode has a cut in voltage of about 0.35 V. It is also known as Schottky barrier diode and hot-barrier diode.  When a Schottky diode is forward biased, that is positive terminal of a battery is connected to the metal and the negative terminal to semiconductor, current across the junction due to flow of electrons from semiconductor to the metal. Electrons thus entering the metal cannot be distinguished from the plentiful electrons already present in the metal and hence these do not constitute minority carriers. Therefore, when the junction voltage is reversed the problem of removal of the excess minority charge does not exist. Hence Schottky diode exhibit negligible storage time.   Construction and Symbol

LiFi stands for light fidelity. It is a wireless optical networking technology and it uses light emitting diode for data transmission. Its close similar to Wi-Fi, but it uses light instead of radio waves. Which make it so special. LiFi can be up to 100 time faster than WiFi. It uses light to transmit data, which give it advantages of working in areas which is susceptible to electromagnetic interference. The light wave cannot penetrate the walls which translates to much shortage range, and lower hacking potential compare to WiFi.  HOW LI -FI WORKS ? image © pureLiFi LiFi works on a Visible Light Communication system. VLCs works by switching the current to LEDs off at very high speed. The technology made LED light bulb emit pulses which is undetectable to human eye and with those limited pulse, data can travel to and from receivers. The receiver than collect data and then interpret them. LiFi can  touch the transmission speed at 100Gbps 14 times faster than WiGig, the fastest WiFi in wor

Operating system is software that runs in kernel mode even that is not always true. Part of the problem is that operating system perform two essential unrelated function. We can say that operating system is system software that manages computer hardware, software resources, and provide common services for computer program.  The Operating System as an Extended machine The architecture of most computers at the machine language level is not developed and difficult to program, especially for input/output. To make this point more concrete, consider modern SATA hard disks used on most computers. Only the insane the programmer would try to mess with hard disks at the hardware level. Therefore disk driver - a piece of software deals with hardware and provide interface to read and write disks blocks. Operating System  contain many drivers for control input/output device. Macintosh hardware are complicated. Real processors, memories, disks, and other devices are very complicated and its interfa

So welcome to my blog. In this post I am gonna write about SCADA network. This actually come to my mind because of web show named Mr. Robot. The show is awesome if you love hacking believe me you will enjoy the series. So basically the SCADA ( Supervisory Control and Data Acquisition ) is a control system architecture comprising computers, networked data communications and graphical user interface for high level process supervisory management, while also comprising other peripheral devices like programmable logic controllers and discrete proportional-integral-derivative controllers to interface with process plant or machinery. SCADA networks used for monitoring and controlling the  industry like  telecommunication, water plant, etc. It is one of the most commonly used industrial control system, in spite of concerns about SCADA system being vulnerable to cyberattack.  This network is used for gathering info about the system, transferring that info to central site, alerting the home stat

If you are a interested in science fiction series or movies. You should have heard of it - God Particle. I heard of it in famous web series Dark. So, what is it exactly ? You are going to see it. God Particle is actually Higgs Boson. It is a elementary particle produced by Quantum excitation of the Higgs fields. It is named after Peter Higgs, who along with other scientist proposed the Higgs mechanism. This theory was their to explain why particle have mass. Well the name God Particle was not liked by many scientist even including Peter Higgs.  God Particle Higgs field is a scalar tachyonic field. It does not transform under Lorentz transformation and it is also imaginary particle. While   tachyon  are purely hypothetical concepts. Under no circumstances do any excitations ever propagate faster than light in such theories – the presence or absence of a tachyonic mass has no effect whatsoever on the maximum velocity of signals and there is no violation of causality   Instead of faster-

Data Center Interior In todays life, computers are becoming so basic needs for human. Even every house has a computer actually not house only every person has PC or laptop of their own. So it is necessary to know about computers and network. As we all use internet which use network to work. Servers is also a part of it, a very important part. A basically a server is a piece of computer which provides data to other computers. There is many types of server like web servers, mail servers, etc. Basically the user of the server are known as client. The role of server is to share data as well as resources and distribute work. Hardware requirements for servers depends on the it's purpose and software. Rack-Mountable Server Img by-Wikipedia Server Clusters The server clusters is also known as server farm. It is a collection of computer server. Server farm consist of lots of computers which requires lots of energy and cooling system. It also has backup server for the case of primary servers