Computer basic operations
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Here are some guidelines for the right and correct arrangement of the mouse and keyboard: - The mouse should be placed close to the keyboard, within easy reach of the user's preferred hand. This allows the arm to remain close to the body in a relaxed position when using the mouse. - The keyboard should be placed flat on the desk or table, directly in front of the user. It's best if the keyboard is not tilted. - The wrist should remain straight and not bent up or down when typing. The forearms should be parallel to the floor. - The mouse should be positioned next to the keyboard so the user's arm remains close to the body when mousing. This prevents over-reaching and strain
Computer basic operations
- 1. COMPUTER BASIC OPERATIONS Hotimah, SPd.Si September, 2012/2013
- 2. CONCEPT MAP Computer Basic Operations Getting to Known Computer Basic Operations Components of computer Turning on computer Dangerous parts of Turning off computer computer Negative effects of computer for health Arrangement of computer set
- 3. Introduction • Definition of computer: • A set of electronic devices that work together. (Supriyanto & Fauziah, 2010: 79) • Computer characteristics: 1. Having a quick and precise accessing ability. 2. Producing information from the previous data. 3. Having the ability to process a large data into information. 4. Having the ability to store a mass of data (up to giga byte). 5. Having the ability to import and export data that is specially design.
- 4. QUESTIONS Why is computer categorized as an electronic device? Find out the disadvantages of a computer?
- 5. Components of computer Hardware Software Brainware (user, operator, administrator)
- 6. Hardware • Hardware is the machinery and electronic parts of a computer system. • Hardware consist of: Input device: keyboard and mouse Processing device: CPU (Central Processing Unit) and storage media Output device: monitor and printer
- 7. Software • Software is a program containing instructions written in computer language comprehended by computer hardware. • Kinds of software: • 1. Operating system software • Used as: a. Interpreter b. Hardware configuration c. File management
- 8. Software 2. Application software • Used to process electronic data. Based on the function, application software can divide into a. Software for word processing b. Software for spreadsheet processing c. Software for statistic data processing d. Software for database processing e. Software for cad (computer-aided design) f. Software for image processing g. Programming language software to make personal application
- 9. BRAINWARE • Brainware is a term used to refer to the people who work in computer fields. • Its consist of: 1. User / Operator a person who operates a computer 2. Administrator a person who organizes/design the work system, work sequence, data processing, and output
- 10. DANGEROUS PARTS OF COMPUTER 1. Monitor Produce a highly intense light. A screen filter has to be placed to avoid damage on our eyes due to the light radiation
- 11. DANGEROUS PARTS OF COMPUTER 2. CPU (Central Processing Unit) • do not touch directly with wet hands because we can be electrified by electric current in it.
- 12. DANGEROUS PARTS OF COMPUTER 3. Computer’s cables • Must placed far from water because it can cause short-circuit. The short-circuit. Can cause fire. 4. Keyboard Avoid water spill because it can cause keyboard to hang/malfunction Keyboard with spilled water or wet material can cause short circuit or electricity us when used.
- 13. NEGATIVE EFFECTS OF COMPUTER FOR HEALTH 1. Disturbance on eyes and head (computer vision syndrome). Such as: pain or headache, dry eyes and irritation, tired eyes, a weak ability of eyes focus, blurry vision (astigmatism, myopia, presbyopia), double vision, color disorientation. 2. Disturbance on arms and hands. Such as: ache on the wrist resulted from tendon disturbance, elbow pain, Carpal Tunnel Syndrome. 3. Disturbance on neck, shoulder, back, and waist.
- 14. ARRANGEMENT OF COMPUTER SET AND THE CORRECT BODY POSITION • The right and correct arrangement is the best way in avoiding discomfort and health disturbances. 1. Work place Arrange the most comfortable position of computer and other device. Arrange desk with consideration of how the device would be used. Arrange the lighting of your work place optimally. Put book, report, or other printed material used while working near the monitor. You can put under or next to it. 2. Chair and body position Choose a comfortable, adjustable, and back-supported chair.
- 15. Could you explain the right and correct arrangement of mouse and keyboard?