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A user interface, also sometimes called a human-computer interface, comprises both hardware and software components. It handles the interaction between the user and the system . Best Coaching for CBSE UGC NET 8 July 2018   https://goo.gl/i34Npu  Complete Course for CBSE UGC NET Paper 1 Command Line Interface Command line interfaces are the oldest of the interfaces discussed here. It involves the computer responding to commands typed by the operator. This type of interface has the drawback that it requires the operator to remember a range of different commands and is not ideal for novice users Graphical User Interfac e Graphical user interfaces (GUI) are sometimes also referred to as WIMP because they use Windows, Icons, Menus and Pointers. Operators use a pointing device (such as a mouse, touchpad or trackball) to control a pointer on the screen which then interacts with other on-screen elements. It allows the user to interact with devices through graphica...

Computer is an electronic device which is capable of receiving information (data) in a particular form and of performing a sequence of operations in accordance with a predetermined but variable set of procedural instructions (program) to produce a result in the form of information or signals. A Computer is a General purpose machine, commonly consisting of digital circuitry, that accepts (inputs), stores, manipulates, and generates (outputs) data as numbers, text, graphics, voice , video files, or electrical signals, in accordance with instructions called a program Father of the computer – Charles Babbage Father of the modern computer – Al a n Turing Basic Architecture of Computer: John Von Neumann (1947-49)   Von Neumann Architecture .  Von Neumann architecture  was first published by  John von Neumann  in 1945. His  computer architecture  design consists of a Control Unit, Arithmetic and Logic Unit (ALU), Memory Unit, Regist...