CONCEPT MAP Computer Basic OperationsGetting 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
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.
QUESTIONSWhy is computercategorized as anelectronic device? Find out thedisadvantages of a computer?
Components of computerHardwareSoftwareBrainware (user,operator, administrator)
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
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
Software2. 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
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
DANGEROUS PARTS OFCOMPUTER1. Monitor Produce a highly intense light. A screen filter has to be placed to avoid damage on our eyes due to the light radiation
DANGEROUS PARTS OFCOMPUTER2. CPU (Central Processing Unit) • do not touch directly with wet hands because we can be electrified by electric current in it.
DANGEROUS PARTS OFCOMPUTER3. 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.
NEGATIVE EFFECTS OF COMPUTER FOR HEALTH1. 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.
ARRANGEMENT OF COMPUTER SETAND 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.
Could you explain the right and correctarrangement of mouse and keyboard?