Keyboard comes in many styles or layouts. The various models differ from shape, size and feel. Among the IBM compatible computers, the most common keyboard layout is the IBM Enhanced Keyboard. It has about 100-104 keys on it. There are seven groups of keys.
Peripheral Device: Those devices which are not required or essential for a computer system to boot and run are called peripheral devices. A computer system has four categories of computer hardware among which mostly all I/O devices are peripheral devices. Though there are other devices which are both input and output devices and most of …
What are peripheral devices? What are the types of peripheral devices? Give Example. Read More »
Based on the direction of data from sender to receiver, there can be 3 types of transmission modes which are simplex, half-duplex, duplex
Computer Hardware: Computer Hardware is any part of the computer that can be touched. These are primarily electronic devices used to build up the computer. Computer Hardware actually perform the computing operations along with taking input and outputting the computed result or to store that. There are four categories of computer hardware, they are being described below. …
Computer Threats: A threat, in general, is a person or a thing likely to cause damage or danger. In computer security, a computer threat is a possible danger that might exploit vulnerability to breach security and therefore cause possible harm. A computer threat is any activity that can cause damage to private or any data …
What is computer threat? Describe 6 computer threats. Read More »
Malware Malicious Software or Malware is any piece of software that disrupts computer operation, steal information, gain access to private systems or display unwanted advertising. Malware causes intentional harm, direct or indirect, to the computer by damaging files etc. or to the user by stealing sensitive information of the user from the computer etc. A …
What is malware? Describe any 5 types of computer malware with an example. Read More »
Tree: Data frequently contain a hierarchical relationship between various elements. The data structure which reflects this relationship is called a rooted tree graph or simply a tree. Among different types of data structures in practice, tree is very important to store and manipulate data with complex relationship. This is sometimes like the properties of an …
What is Tree in Data Structure? Explain different types of trees. Read More »
Risk management is a series of steps that help a software team to understand and manage uncertainty. It’s a really good idea to identify it, assess its probability of occurrence, estimate its impact, and establish a contingency plan that─ ‘should the problem actually occur’. Risk management is a part of umbrella activities.
Computer systems reached today’s modern age step by step, these steps are called generations. In each generation computers with new features and functions starts to get the market and the older computers slowly gets replaced. IBM company started categorize the development of computers into generations, though not everyone in the industry including users will be …
What are the different generations of computer? Explain Read More »
An organization’s management generally includes one or more levels depending on the size of the organization and it’s managing areas. Different types of information systems are required for different purposes of these levels. However, information systems can be categorized as follows,
