Computer handling is sometimes called computer maintenance, is the process of caring the computer and its accessories so that it can perform its work properly.
POWER MANAGEMENT.
The process of dealing with power disturbances.
Power disturbances include
- Surge
- Sags/ brownout
- Sparks
- Liquid
- Dust
- Heat
- Magnetism
- Spikes
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1) SURGE : This is the voltage increase above 110% of the normal voltage
2) SAGS/BROWNOUT: This is the power brownout which last just less than a second. It’s caused by power overload.
3) SPIKES: This is the power overload which last for fractions of a second. It’s caused starting and stopping of heavy welding and lightening equipments.
4) LIQUIDS : liquid tends to cause short- circuiting
5) DUST: Dust tends to block flow of electrical signals in a computer system.
6) HEAT: Chips in a computer system cannot pass high voltage at very low temperature nor high temperature
7) MAGNETISM: Magnet can delete all information in a magnetic disks.
DISK DE FRAGMENTATION: The process of re-arranging files in a disk.
DATA BACKUP: The process of making a copy of your files on other disks.
IMPORTANCE OF DATA BACKUP
1) Transferring purpose
2) Sharing purpose
3) Replacement in case of data loss
DEVICES USED IN DATA BACKUP
- DVD
- CD
- FLASH DISK
- HARD DISK
- FLOPPY DISK
- MEMORY CHIP
- EXTERNAL HARD DISK
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DISK FORMATTING: The process of preparing a disk for future use.
COMPUTER SECURITY
– The process of preventing computer data loss
Security measure for protecting computer data
- Use of password
- Installing Anti – Virus
- Updating software
- Avoiding downloading free games
- Avoid sharing password
- Shopping on safe website