We communicate with each other through a language that comprises of words and characters. We understand characters, words, and numbers. But is this type of data or language accepted by computers? No, they only understand numbers. When the data is entered by us into a computer, it is converted into electronic pulse. Each pulse is … Read more
Memory units are used to represent and measure data. The most common memory units are: Bit: It is the starting unit of computer memory. It is the smallest unit that measures data stored in storage devices and main memory. It can only have one binary value, either 0 or 1. Byte: Byte is the fundamental … Read more
It is a private network and belongs to a particular organization. It is exclusively designed for the use of an organization and its associates like customers, employees, and other people authorized by the organisation. Hence, it is a private internet that operates only within an organisation. Security systems such as firewalls are used to … Read more
It is a global network connecting millions and billions of computers throughout the world. Billions of users worldwide are connected by it through the standard internet protocol suite (TCP/IP). Internet is set up by using wireless, networking and electronic technologies. It is the fastest medium to send and exchange data and information among the computers … Read more
Input devices help users to send information, data, and control signals to a computer. It is the Central Processing Unit (CPU) that receives the input and processes the same in order to produce the output. Popular input devices are mentioned below: Keyboard Mouse Scanner Joystick Light pen Digitizer Microphone Magnetic Ink Character Recognition (MICR) Optical … Read more
The primitive people were the first to use the counting device. Stones, bones, and sticks were used by them as counting tools. As the time progressed, the human mind and technology took a giant leap and the development of more computing devices began. Few of the popular computing devices in the order of them being … Read more
Hardware is a collective term used for all the tangible, physical parts and components of a computer and the devices connected to it. Popular hardware devices are motherboard, CPU, mouse, monitor and keyboard. Motherboard It is one of the most important components of a computer. It is a thin circuit board that looks small in … Read more
It is a part of the intranet of an organisation. This communication network is based on internet protocols (TCP/IP). Extranet’s job is to provide the firm’s customers and trading partners controlled access to its intranet. Therefore, extranet is a private network that shares operations and internal information of a firm securely with some authorized people … Read more
Computer viruses are unwanted piece of codes or software programs that impede the functioning of a computer. They spread through infected files, insecure networks, and corrupt data. They can replicate and produce copies of themselves upon entering your system. These copies of a virus allow it to infect various files and spread from one application … Read more
When a network is setup through communication channels by connecting two or more computers, it is known as a Computer Network. It allows computers to communicate with each other and to share data, commands, software resources and hardware. Some popular computer networks are: Local Area Network (LAN) Metropolitan Area Network (MAN) Wide Area Network (WAN) … Read more