JKBOSE Class 11th Other Subject Notes
Information Technology involves the management and utilisation of computers, networks, storage technology, hardware, and other related devices, systems, and techniques aimed at developing, inputting, processing, storing, securing, and transmitting all forms of data electronically. IT is made of many technologies that include computer hardware, computer software, and databases, as well as the internet.
Cybersecurity is an important aspect of IT since its primary function is to secure systems, networks, and information from cyber incidents, which include hacking, malware, and phishing. It entails measures like firewalls, encryption, intrusion detection systems, and security audits, among others. Cybersecurity has the goal of protecting the confidentiality, integrity, and availability of information.
Cloud computing is a model of delivering services through the internet, or ‘the cloud, which encompasses anything from storage space to processing power to software. It enables organisations to acquire IT resources in some form while not having to pay for the physical hardware outright. In the technology field, cloud computing can be used for scalable and flexible computing power, storage space, backup, and the creation of software.
This paper aims to make a distinction between IT and computer science, noting that while the two are closely linked, they are not the same thing. IT deals with the use of technology to address the needs of a business organisation, whether in the areas of management, systems, or technology. Computer science is mainly focused on the academic basis and the creation of software, algorithms, and computer systems.
The processes of backing up and restoring data in the IT business are important because sometimes data needs to be restored due to hardware or software failure, malicious attacks, or being accidentally deleted. Data backup and recovery is an insurance policy that each organisation must have and use regularly to avoid loss of data and minimise business disruption. It is used to determine the strategies that should be implemented once the data has been corrupted so that the data can be restored as soon as possible.
Virtualization is a technique where more than one OS operates on actual hardware in parallel, making the best use of the available resources and minimising the cost of hardware. It is flexible in how it can be used, allowing for faster expansion, better backup plans, and more straightforward organization. Virtualization also helps in the circumstances of testing and development environments since it segregates different applications and workloads.
