Guidelines for proper use of computers1-The development of office ergonomics has resulted largely from the rapid growth of information technology and the increasing numbers of individuals using personal computers. In recent years there has been a significant increase in the number of repetitive strain injuries associated with computer usage. These are often associated with inadequate workplace equipment and conditions and constrained or improper posture.2- Computer users frequently sit for long periods of time doing work requiring frequent small movements with their eyes, head, arms and fingers.3- The purpose of these guidelines is to provide guidance on the purchase, setup and use of computer in order to prevent the issues .
Proper Use of the Computer.
Health concerna-eyestrain,head, shoulder, neck, and back pains,hand and wrist injuries.
PROPER WORK STATION DESIGN1.Position in a well-ventilated room2.Use an adjustable workstation: ergonomic computer chairs 3.Place the monitor 16 to 24 inches away, at eye level or slightly at a lower angle; tilt the monitor or adjust the light source; adjust the brightness and contrast settings4.Use extendable/retractable legs of the keyboard5.Mouse must be easily accessible by your dominant hand6.Use a document holder to minimize vertical head Movements.GOOD POSTURE1.Sit up straight. Feet flat on the floor, use a footrest if needed.Position your lower arms parallel with the floor and level to your keyboard, with elbows at your side2.Keep wrists straight vs. carpal tunnel syndrome 3.Do not lean into the monitor but sit close enough to the keyboard and the mouse to stay relaxed. GOOD WORKING HABIT1.Tap on the keys/mouse buttons gently2. Avoid long, uninterrupted periods of typing–Take short stretch breaks, ideally every 20 minutes, to prevent fatigue3. Avoid staring at the monitor for long periods–Take vision breaks: focus on objects at least 20 feet away –Do eye exercises.
PROPER CARE OF THE COMPUTERPOWER SURGES1.Use an Automatic Voltage Regulator (AVR)2.Unplug your system during lightning storms, even if it is surge protected.3.Disconnect from the Internet during lightning storms to protect modems.4.Avoid octopus connections.BASIC TROUBLESHOOTING1.Do not panic!.•Create a boot disk / startup disk.•If the computer hangs or is acting weird:–Ctrl+Alt+Delete to bring up the Task List.–Do a manual reboot or shut down the
computer and turn it back on after at least 10 seconds.2.Avoid by not opening too many apps simultaneously.If a hardware component is notfunctioning well or not functioning at all:3.examine the power button, power cords,cables, and connectors3.try rebooting so that the computer can detect the hardware4.call the lab technician for a replacement hardware component.mouse or the keyboard not functioning well: usually due to dust and dirt5.“Non-system disk” message: check if diskette is inserted in the disk drive 6.drive has difficulty reading storage device: ask the lab technician to examine and clean the drive . 7. safe mode”: generally due a corrupted operating system, or bad sectors in the hard
disk, or having a non-compatible hardware connected - use the system utilities to try and fix the problem8.printer not functioning properly: use the Printer Properties – Maintenance tab.scan for viruses. 8.Final resort: contact your vendor in case yourunit is still under warranty. If not, then contactthe local computer shop or the lab technician.9.Never try to tinker with the internal hardware unless you have undergone special training on computer maintenance.SYSTEM UTILITIES1.Error-checking vs. bad sectors.Defragmentation to increase the speedof access and retrieval.System Backup for easy restoration in the event of a system crash or failure..Disk Cleanup to free up space on the hard disk.REGULAR FILE BACK UPS1.to portable storage devices like CDs,flash drives, and diskettes 2.for easy retrieval of files vs. Accidental file deletion, a system crash, or hardware failure 3.take care of storage devices: keep away from heat, moisture, and magnetic fields like phones, and speakers.
Proper Use of the Internet guidelines. 1.Do not use Email for harassing or threatening others 2.Do not send worms or viruses to cyberspace. 3.Do not send spam. 4.Do not collect other people’s email id for sending spam or bulk mail. 5.Do not share the email ids in your contact without permission. 6.Do not forget to add your correct identity. 7.Do not use downloaded material as your own.
computer and turn it back on after at least 10 seconds.
disk, or having a non-compatible hardware connected - use the system utilities to try and fix the problem