Computer Laboratoy Guidelines 1.1.4


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Computer Laboratoy Guidelines 1.1.4

  2. 2. <ul><li>Computers, especially personal computers are safe to work with. </li></ul><ul><li>Peripheral devices such as printers, monitors and disk drives are also fairly safe to use. </li></ul><ul><li>These devices operate on electricity and hence there is always a certain degree of potential danger. </li></ul><ul><li>Electricity can hurt or even kill if it is not handled properly. </li></ul><ul><li>Each computer is connected to another with a cable. </li></ul><ul><li>The computer in the first row is called the file server . </li></ul>
  3. 3. <ul><li>A file server is a microcomputer that is used to store programs and data so that everyone can share them. </li></ul><ul><li>When computers are interconnected in thins way, wee say that they are in a network . </li></ul>
  4. 4. Personal safety rules for a school laboratory <ul><li>Seek your teacher’s permission before carrying out any activity in the laboratory. </li></ul><ul><li>Know the location of the fire extinguisher and the first-aid box and how to use them in case of an emergency. </li></ul><ul><li>Report any fire or accident to your teacher immediately. </li></ul><ul><li>Read and understand the instructions of an activity thoroughly before using the laboratory. </li></ul><ul><li>Report any broken plugs or exposed electrical wires or any other computer cables. </li></ul>
  5. 5. <ul><li>Sit in front of your computer in the correct posture. </li></ul><ul><li>Avoiding stepping on electrical wires or any other computer cables. </li></ul><ul><li>Do not run or play in the laboratory. </li></ul><ul><li>Do not eat or drink in the laboratory. </li></ul><ul><li>Do not open the system unit casing particularly when the power is switched on. Some internal components hold electric voltages up to 30000 volts, which can be fatal. </li></ul><ul><li>Do not insert any metal objects such as clips, pins and needles into the computer casing. They may cause fire. </li></ul>
  6. 6. <ul><li>Do not remove anything from the computer laboratory without permission. </li></ul><ul><li>Do not touch, connect or disconnect any plug or cable without your teacher’s permission. </li></ul>
  7. 7. Guidelines on the care of computer equipment <ul><li>Computers and peripherals devices are very reliable. </li></ul><ul><li>Computer </li></ul><ul><li>Do not use your pc during thunderstorms. </li></ul><ul><li>Do not switch your PC on/off too rapidly. If you have just switched it off, wait at least two minutes before you switch it on again. </li></ul><ul><li>Do not touch any internal parts of the computer. High voltages can hurt or kill you. </li></ul>
  8. 8. <ul><li>Avoid exposing the PC to excessive dust by covering the PC with dust covers. </li></ul><ul><li>Avoid exchanging floppy disks with your friends. Floppy disks can easily be infected with viruses . A virus is a tiny program internationally created to destroy data and programs. </li></ul><ul><li>Scan your floppy disk for any virus before using it. </li></ul><ul><li>Switch on the power to your printer, system unit and monitor in this order. Switch off the power in the reverse order. </li></ul><ul><li>Floppy disks </li></ul><ul><li>A floppy disk may be very cheap but it’s value increases when you start storing data and programs into it. You should handle the floppy disk carefully. </li></ul>
  9. 9. Handling floppy disks The DO’s The DON'ts Always store disks in a standing position in a disk box. Do not place heavy objects on disks. Insert the disk carefully and gently into the floppy disk drive by gripping the upper edge of the disk Do not touch the disk surface or the shutter. Always label your disk approximately. Use a felt-tip pen to write on the label. Do not place disks near magnets or magnetized materials. The stored data can be destroyed by the magnetic field. Keep disks away from food and drinks which may damage the disk surface. Do not expose disks to extreme heat or to direct sunlight.