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Input Devices: These are the devices using which the user provides input instances. In a programmable computer, input devices are also used to input programs. Examples: Keyboard, mouse. Output Devices: These devices notify the user about the output of a computation. Example: screen, printer, speaker. Processing Unit: The central processing unit (CPU) is the brain of the computing device and performs the basic processing steps. A CPU typically consists of: An arithmetic and logical unit (ALU):  This provides the basic operational units of the CPU. It is made up of units (like adders, multipliers) that perform arithmetic operations on integers…

A computer can process data, pictures, sound and graphics, They can solve highly complicated problems quickly and accurately. A computer as shown in Fig. performs basically five major computer operations or functions irrespective of their size and make. These are 1] It accepts data or instructions by way of input. 2] It stores data. 3] It can process data as required by the user. 4] It gives results 5] It controls all operations inside a computer. 1. Input: This is the process of entering data and programs in to the computer system. You should know that computer is an electronic…

What is Internet? The internet is essentially a global network of computing resources. You can think about the internet as a physical collection of routers and circuits as a set of shared resources or even as an attitude about interconnecting and intercommunication. Some common definitions given in the past include: A network of networks based on the TCP/IP communications protocol. A community of people who use and develop those networks. Internet Based Services: Some of the basic services available to Internet users are: Email: A fast, easy and inexpensive way to communicate with other Internet users around the world. Telnet:…