For moving items by clicking, holding on and then dragging them. Glad that you enjoyed reading the hub. Machines range in size and capability, from huge supercomputers such as the Tianhe-2, to standard desktops, smartphones and embedded devices found in fire alarms. Data is a collection of unorganized facts & figures and does not provide any further information regarding patterns, context, etc. So many people seem to think most people already know about how to use computers or what the different parts of a computer are for, and yet there are also so many out there who are still scared of using computers because they don't understand them, or fear that they won't understand them so they don't even try to understand them. Despite so many advantages, computers have some disadvantages of their own −. Scroll buttonIt is usually situated between the right and left buttons. For you to be able to use a computer, you must turn it on. A beginner s introduction to computer programming : you can do it! Now that we know the characteristics of computers, we can see the advantages that computers offer−. Just have a look at the symbol on your Mobile's on / off button to get the picture. We've released a 2-hour video course to teach the basics of computer science. A computer consists of four major parts: the input, output, CPU (central processing unit), and memory. Title. !H- 2 Course adapted from National Institute on Aging (2007) Helping Older Adults … INTRODUCTION. Arithmetic Logic Unit − This is the brain of the computer where all arithmetic operations and logical operations take place. The basic parts of a computer are as follows − Input Unit − Devices like keyboard and mouse that are used to input data and instructions to the computer are called input unit. Hope you enjoy, feel free to ask any questions in the comments. To highlight by clicking, holding down the left button and then dragging on the text you want to select. Dragging – clicking and holding on the mouse button. Patrick, a computer technician, is a dedicated writer who wishes to make the world better by informing individuals who seek more knowledge. Computer software contrasts with computer hardware, which is the physical component of computers. Patrick Kamau (author) from Nairobi, Kenya on May 02, 2012: Thanks josiejossy, for the vote. These keys are arranged in a specific way on your keyboard. Right-click – clicking on the right mouse button. 6 years ago I knew nothing about computers and didn't even know where to find the start button! I. Computer Basics: Introduction to computers. Take advantage of this course called Basic Computer course book download to improve your Others skills and better understand computer basic.. Windows logo key - once pressed it brings out the start menu. However, there are several parts on a computer that are universal to all computers. Computer devices like keyboard, mouse, printer, etc. a piece of software permanently programmed into the hardware. 2 Making programs: using the logical operations. This unit provides a brief introduction to computer hardware and software. Computer is an electronic device that receives input, stores or processes the input as per user instructions and provides output in desired format. Hardware vs. Software Hardware includes the parts of the computer system that you actually can touch (like the keyboard, mouse, monitor, or CPU). Shift key (Shifts from uppercase characters to the lower case and vice versa and helps us to type the characters on top of any key with two sets of characters.). Alternate key – (alt) Used to change the function of other pressed key and the results will vary depending on the program. Output Unit − Devices like printer and visual display unit that are used to provide information to the user in desired format are called … Also, data is safe from normal wear and tear associated with paper. The concepts taught apply to all programming languages. Computer input is called data and the output obtained after processing it, based on user’s instructions is called information. Double click – clicking twice on the mouse left button. If a system is already running but needs to be restarted, it is called rebooting. Computer software, or simply software, also known as computer programs, is the non-tangible component of computers. The most common types of mice have got three buttons. COMPUTER BASICS Seema Sirpal Delhi University Computer Centre. Booting is the process by which the computer loads the system files into the main memory in readiness for use. In simple terms, it is the start-up process of a computer. Computers can take up routine tasks while releasing human resource for more intelligent functions. Speed − Typically, a computer can carry out 3-4 million instructions per second. Backspace - For deleting (erasing) characters to the left of the cursor. Right Mouse Buttona) Get information from the computer (retrieving)b) Creating shortcuts to / moving items. You don't need anything except a computer … What’s a CPU? This has a youtube counterpart which is below. • A computer is made up of hardware. A computer is an electronic device that accepts data from the user, processes it, produces results, displays them to the users, and stores the results for future usage. Starting a computer or a computer-embedded device is called booting. Input Unit − Devices like keyboard and mouse that are used to input data and instructions to the computer are called input unit. System files into the computer ( retrieving ) b ) Creating shortcuts to moving. 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