This document discusses maintenance and upkeep of computer hardware. It recommends cleaning computers every 3 to 6 months with compressed air, especially keyboards. If liquid is spilled, the computer should be turned off immediately. It also mentions upgrading damaged hardware by adding more memory. A variety of input devices like wireless and optical mice and ergonomic or wireless keyboards are discussed. The functions of the recycle bin, temporary files, cookies, and disk defragmentation are briefly covered.

2. Maintenance Issues
 Computers require regular maintenance
 If keyboard or mouse doesn't work its
probably because cords are lose
 Unorganized and unprotected cables
cause safe

3. Hardware Maintenance
 You should clean your computer every 3
to 6 months
 You should clean your keyboard best
way is compressed air
 If you spill liquid on your computer you
should turn off your computer
immediately
 For printers you should use a inkjet
printer cleaning kit

4. Upgrades And
Consumables
 When hardware is damaged and needs
to be changed you can upgrade it by
adding more memories to the computer

5. Mouse
 Variety of mouse devices
 Wireless
 optical

6. Keyboards
 Ergonomic Keyboard allow more natural
positing of arms and hands
 Wireless Keyboard reduced clutter of
cords
 Keyboards come in a range of choices

7. Recycle bin
 Holding area for files before their final
deletion
 contains files that has been deleted
 You can pemanelenty delete items from
the bin

8. Temporary Files
 Free memory for other programs
 Acts like a safety net
 printing

9. Cookies
 Small text file
 Not threat to computer
 Contains code

10. Disk Defragmentation
 Occurs when piece of data is broken
 Sectors are stored in nonadjacent
clusters