Computer World

  Supercomputer About Supercomputers Supercomputers are extremely powerful computers designed to perform complex computations at very high speeds. They are typically used for scientific and engineering applications that require intensive calculations, such as weather forecasting, climate modeling, molecular modeling, and simulations of physical systems. Supercomputers can handle massive amounts of data and perform calculations in parallel, using multiple processors and cores to accelerate computation time. Supercomputers are typically built using specialized hardware, such as custom-designed processors, high-speed interconnects, and massive storage systems. They are usually housed in specially designed facilities with extensive cooling systems to prevent overheating. Supercomputers have a wide range of applications in research, industry, and government, including weather forecasting, drug discovery, oil and gas exploration, and military simulations. They are also used for sci...

 Type of Computers Please read the complete article carefully what is computer and types of computer , what is micro computer , super computer , mini computer , and mainframe computer . In this article we have covered the topic :-   type of computer ? Please read the complete article carefully what is computer and types of computer, what is micro computer , super computer , mini computer , and  mainframe computer  . Computers are divided into different types based on different criteria. Based on the size, a computer can be divided into four types :- i. Micro Computer ii. Mini Computer iii. Mainframe Computer iv. Super Computer Micro Computer :- What is Micro Computer - Definition  Definition - A microcomputer is a complete computer on a small scale, designed for use by one person at a time. An antiquated term, a microcomputer is now primarily called a personal computer (PC), or a device based on a single-chip microprocessor. Common micro...

Introduction of Computer...… computer is a programmable electronic device that accepts raw data as input and processes it with a set of instructions (a program) to produce the result as output. It renders output just after performing mathematical and logical operations and can save the output for future use. It can process numerical as well as non-numerical calculations. The term "computer" is derived from the Latin word "computer" which means to calculate.   A computer is designed to execute applications and provides a variety of solutions through integrated hardware and software components. It works with the help of programs and represents the decimal numbers through a strings of the binary digits. It also has a memory that stores the data, programs, and result of processing. The components of a computer such as machinery that includes wires, transistors, circuits, hard disk are called hardware. Whereas, the programs and data are called software. It is believed th...

 Definition of Computer Security :- Computer Security is the protection of computer systems and information from harm, theft, and unauthorized use. Computer hardware is typically protected by the same means used to protect other valuable or sensitive equipment _ namely, serial numbers, doors, and locks, and alarms. The Computer Security is also known as Cyber Security. Advantages of Computer Security :- 1. Protects system against viruses, worms, spyware and other unwanted programs. 2. Protection against data from theft. 3. Protests the computer from being hacked. 4. Minimize computer freezing and crashes. 5. Gives privacy to users. Disadvantages of Computer Security :- 1. Firewalls Can be Difficult to configure Correctly. 2. Makes the system slower. 3. Need to keep updating the new software in order to keep security up to date. 4. Could be costly for average user.

Too be continued.........  Problems related with Computer Security are : 1. Phishing 2. Vishing 3. S mishing 4. Pharming 5. Vulnerability 6. Exposures 1. Phishing Phishing is an attempt to obtain users sensitives information, including credit card details and banking information, by disguising as a trustworthy entity in an online communication (e-mail, social media, etc.) 2. Vishing   Vishing (Voice Phishing) is an attempt of fraudsters to persuade the victim to deliver personal information or transfer money over the phone. 3. Smishing : Smishing (SMS Phishing) is any case where sent text messages attempt to make potential victims pay more or click on suspicious links. 4. Pharming : i) Pharming is a cyber attack meant to redirect a website's traffic to another, fake one. ii) Pharming can be done either by changing the hosts files on a victim's machine or by exploiting a flaw in DNS server software. iii) In Phashing, no conscious user interaction is required. 5. Vulnerabili...

Computer Security :- Computer Security is the protection of information systems from theft or damage to the hardware, software and to the information on them. It includes controlling physically access to the hardware, as well as protecting against harm that may come via network access, data and code injection, and due to malpractice by operators. We can design the policies for information security within an organization by providing : i) Confidentiality :   Only authorized users can access the data resources and information. ii) Integrity : Only authorized users should be able to modify the data when needed. iii) Availability :  Data should be available to users when needed. iv) Authentication : Communicating with the authorized. Components of the computer System :- The components of a computer system that needs to be protected are : 1. Hardware 2. Firmware 3. Software 1. Hardware :  The physical part of computers, like the system memory and disk drive. 2. Firmware : Perm...