Measurement Devices Objectives: • To know how to use the different measuring devices properly. • To know how to solve the volume. • To know how to solve the Density. Introduction: "Accurate measurement is essential" – Measurement is the size‚ length‚ or amount of something‚ as established by measuring. Measurement is the first step that leads to control and eventually to improvement. If you can’t measure something‚ you can’t understand it. If you can’t understand it‚ you can’t control it. If
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General Computer Questions [pic] General Computer Question 1: What is a computer? Answer: A common‚ somewhat simplified‚ definition is that the computer is an electronic device that can be used to process information. Today‚ computers are not only used for calculations‚ but also for creating and manipulating text and pictures. They are used to design bridges and spacecraft‚ to record a company’s sales and to keep track of customers‚ to create a school newspaper‚ or to estimate the cost
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Pointing Devices are direct entry input devices. They allow users to control the pointer and the insertion point on the screen. Examples of pointing devices are mouse‚ trackball‚ touch pad‚ pointing stick‚ joystick‚ touch screen‚ light pen and graphics tablets. A mouse is a computer device‚ which has a ball sealed at the bottom. It is attached with a cable to the system unit. When rolled on the flat surface‚ the movement of the ball will generate electrical circuits‚ which are then sent to the
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Function of digital computer A typical digital computer system has four basic functional elements: (1) input-output equipment. (2) main memory. (3) control unit. (4) arithmetic-logic unit. Any of a number of devices is used to enter data and program instructions into a computer and to gain access to the results of the processing operation. Common input devices include keyboards and optical scanners; output devices include printers and cathode-ray tube and liquid-crystal display monitors
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RNA Analysis 1. The color result is light brown. 2. A positive Biuret test indicates the presence of proteins in the filtrate. Biuret is used to test for proteins. It is a light blue color and changes to purple in the presence of protein‚ a polymer made of amino acids. It will not change color when only amino acids are present. 3. What type of molecules present in the suspension is hydrolyzed by the mild acid treatment? 4. The products of hydrolysis are peptones‚ peptides‚ and amino acids
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eGraphical user interface From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search "GUI" redirects here. For other uses‚ see GUI (disambiguation). A screenshot of the GNOME Shell GUI. The Xerox Alto was the first device to use a graphical user interface. In computing‚[1] graphical user interface (GUI‚ sometimes pronounced ’gooey ’)[2] is a type of user interface that allows users to interact with electronic devices through graphical icons and visual indicators such as secondary
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User Interfaces Name: Ahmed Baha Class: 9B subject C Subject: ICT Command line user interfaces Command line interface is a user interface to a computer’s operating system or an application in which the user responds to a visual prompt by typing in a command on a specified line‚ receives a response back from the system‚ and then enters another command‚ and so forth. A Command Line Interface allows the user to interact directly with the computer system by typing in commands (instructions)
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PERIPHERAL DEVICES Peripheral devices can be attached by cable or wireless technology to the computer to perform specific functions. Peripherals are plugged into special sockets (ports) using cables. INPUT DEVICES Keyboard - Consist of typewriter-like keys that enable users to enter information into a computer. Mouse - Control the movement of a cursor or pointer on a display screen. The most common pointing device is the mouse. Scanner - Copies a picture
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] NATIONAL OPEN UNIVERSITY OF NIGERIA SCHOOL OF SCIENCE AND TECHNOLOGY COURSE CODE:CIT 711 COURSE TITLE:USER INTERFACE DESIGN AND ERGONOMICS 1 2 COURSE GUIDE CIT 711 USER INTERFACE DESIGN AND ERGONOMICS Course Developer Course Editor Course Co-ordinator DR. A. S. SODIYA Afolorunso‚ A. A. National Open University of Nigeria Lagos. NATIONAL OPEN UNIVERSITY OF NIGERIA 3 National Open University of Nigeria Headquarters 14/16 Ahmadu Bello Way Victoria Island Lagos
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Question 1. Assume you are the manager of a fast-food restaurant. What are the outputs of your work unit? What are the activities required to produce those outputs? What are the inputs? When looking at a fast-food restaurant such as McDonalds‚ there are a couple main outputs that a manager needs to be aware of. The outputs include quality food and excellent service. For each of these outputs it is important to make sure that the right people are in the right positions and that they have the proper
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