Skip to main content

Posts

Showing posts with the label #Techinformation

Access Control [Computer Security System]

  Access control refers to the security measures and practices implemented to regulate and control access to resources, systems, or physical areas. It is a fundamental aspect of information security and helps protect sensitive data, prevent unauthorized activities, and maintain the confidentiality, integrity, and availability of resources. Access control systems are designed to ensure that only authorized individuals or entities can access certain areas or resources. These systems can be physical or logical, depending on the type of access being controlled. Physical Access Control: Physical access control involves securing physical areas such as buildings, rooms, or data centers. It typically involves the use of physical barriers, locks, keys, badges, or biometric systems to authenticate and grant access to authorized personnel. Examples of physical access control measures include swipe cards, proximity cards, PIN codes, fingerprint scanners, or security guards. Logical Access Con...

Differences Between Unix and Windows

  Unix and Windows are two different operating systems commonly used in computers. Here's a simple explanation of their differences: Design and History: Unix: Unix is an operating system developed in the 1970s and is known for its stability, security, and flexibility. It was primarily used in servers and workstations and later became the foundation for various Unix-like systems, such as Linux and macOS. Windows: Windows is an operating system developed by Microsoft in the 1980s. It started as a graphical user interface (GUI) for MS-DOS and evolved into a fully featured operating system for personal computers. User Interface: Unix: Unix traditionally has a command-line interface, which means users interact with the system by typing commands. However, many Unix-like systems now also provide graphical interfaces. Windows: Windows is known for its graphical user interface (GUI) with windows, icons, menus, and a mouse-driven interface. It allows users to interact with the system using a...

Introduction to Computer System Security

  Computer system security refers to the protection of computer systems and networks from unauthorized access, theft, damage, or other malicious activities. It involves the implementation of various technologies, practices, and policies to prevent security breaches and protect against cyber threats. Effective computer system security involves several key elements, including: Access control : This involves limiting access to computer systems and networks to authorized users only. Access control measures include the use of passwords, authentication methods such as biometric scanners or security tokens, and limiting access to sensitive information on a need-to-know basis. Encryption : Encryption is the process of encoding data so that it can only be accessed by authorized users. Encryption is used to protect data during transmission and storage, preventing unauthorized access and tampering. Firewalls : A firewall is a security device that monitors and controls incoming and outgoing ne...

IIT Kanpur develops haptic smartwatch for the blind and the visually impaired

  IIT Kanpur researchers have developed a touch-sensitive or haptic smartwatch for the blind and the visually impaired that offers various features to help in day-to-day life. IIT Kanpur researchers have developed a novel touch-sensitive smartwatch which can be a boon for the visually impaired and blind persons. It offers several features such as the indication of health parameters, instant short-timer, hydration reminder etc. The watch has been developed at the National Centre for Flexible Electronics, IIT Kanpur by Prof. Siddhartha Panda, Department of Chemical Engineering, and Vishwaraj Srivastava. HOW THIS SMARTWATCH WILL BENEFIT THE VISUALLY IMPAIRED Around 49 million blind and 285 million visually impaired persons in the world face difficulty in easily interacting with devices due to the absence of tactile interface. India is home to about 20% of the total blind people in the world. Addressing the concern, the team at IIT Kanpur has developed a smartwatch that operates in hap...

सेल्फ ड्राइविंग कार

  एक  स्व-ड्राइविंग कार  , जिसे एक  स्वायत्त वाहन  (  एवी  ),  स्वायत्त कार  ,  चालक-रहित कार  या  रोबोट कार  (  रोबो-कार  ) के रूप में भी जाना जाता है,   वाहन स्वचालन  को शामिल करने वाली  एक  कार  है , जो एक जमीनी  वाहन  है जो अपने पर्यावरण को महसूस करने और बहुत कम या बिना किसी  मानवीय इनपुट  के सुरक्षित रूप से आगे बढ़ने में सक्षम है । सेल्फ-ड्राइविंग कारें अपने परिवेश को देखने के लिए विभिन्न प्रकार के सेंसरों को जोड़ती हैं, जैसे  थर्मोग्राफिक कैमरा  ,  रडार  ,  लिडार  ,  सोनार  ,  जीपीएस  ,  ओडोमेट्री  और  जड़त्वीय माप इकाइयाँ  ।  उन्नत  नियंत्रण प्रणाली  उपयुक्त नेविगेशन पथों, साथ ही बाधाओं और प्रासंगिक  संकेतों की पहचान करने के लिए  संवेदी जानकारी  की व्याख्या करती है  । एसएई इंटरनेशनल  (एसएई जे3016, समय-समय पर संशोधित)  द्वारा विकसित एक प्रणाली क...