WannaCry Ransomware: All you need to need to Know

WannaCry Ransomware has been in NEWS since May 12, 2017 infecting more than 2,00,000 computers in more than 150 countries. WannaCry spread using a flaw in older Microsoft Windows systems and wreaked havoc on organizations including FedEx and Telefónica, as well as the UK’s National Health Service(NHS). What is Ransomware ? There are many types of malware that affect a computer, ranging from those that steal your information to those that just Continue Reading

Science and Technology Current Affairs Summary: Dec 2016 – March 2017

SCIENCE CURRENT AFFAIRS Scientists from Ireland have claimed discovery of a new human organ named the mesentery that exists in the digestive system. It will be human body’s 79th organ. Mesentery connects the intestine to the abdomen.  The organ was previously thought to consist of fragmented and disparate structures. India formally became an associate member of CERN (European Organization for Nuclear Research) with the government completing the internal approval procedures Continue Reading

Ligo India Project

Ligo India LIGO India is a planned advanced gravitational-wave observatory to be located in India as part of the worldwide network. The project has been named as IndiGO or the Indian Initiative in Gravitational-wave Observations.  LIGO operates three gravitational-wave (GW) detectors: Two are at Hanford in the state of Washington One is at Livingston in Louisiana LIGO-India project aims to move one Advanced LIGO detector from Hanford to India.  The project would Continue Reading

Computer Basics

Computer Basics: Computer is an electronic device which accepts data as input, performs processing on the data, and gives the desired output. A computer may be analog or digital computer. Speed, accuracy, diligence, storage capability and versatility are the main characteristics of computer. The computing devices have evolved from simple mechanical machines, like ABACUS, Napier’s bones, Slide Rule, Pascal’s Adding and Subtraction Machine, Leibniz’s Multiplication and Dividing Machine, Jacquard Punched Card System, Babbage’s Analytical Continue Reading

Mobile Phone Technologies

The different mobile technology words Glossary: GSM is combination of FDMA ( frequency divison multiple access) & ( TMDA) Time division multiple access. CDMA: Code Division Multiple Access WCDMA : wide band – CDMA. IT is 3G technology that increases data transmission rates in GSM systems by using the CDMA air interface instead of TDMA. WCDMA is based on CDMA and is the technology used in UMTS. WCDMA was adopted as Continue Reading

Diseases: Cause, Carriers & Vaccines

A Snapshot of different diseases, their causes, the vectors who transmit these diseases and vaccines available against them. Disease declared eradicated from country: Small Pox Guinea Worm Diseases in Detail Swine Flu: Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine influenza virus (SIV) or swine-origin influenza virus (S-OIV) is any Continue Reading

Space Science & Technology

This chapter deals with space science & technology and important topics with relation to ISRO. We shall now start with basic concepts of space science & technology. Different Types of Orbits: We all know artificial satellites that we send to space revolve around our plant earth. Now, the orbits used by these satellites are defined using equator as reference. Accordingly, we have three types of orbits: Equatorial Orbit The satellite using Continue Reading

Indian Missile System

S.No Missiles Launch Mode Version Range Speed Propulsion WarHead Guidance System Use A Ballistic 1 Prithvi (Short) Surface to Surface Prithvi-I SS-150 2 Prithvi-II SS-250 single-stage liquid-fuelled 3 Prithvi-III SS-350 Two Stage: Solid-Liquid 4 Dhanush (Naval) 350 Con/Nuc Agni (Med- Interconinental) Surface to Surface Agni – I       (MRBM) 700-1250 Single Solid Nuc Ring laser gyro-INS (inertial navigation system), optionally augmented by GPS terminal guidance Agni – II       ( IRBM) 2000-3000 Continue Reading