Useful Home Info #01

A.Typical Household monthly consumption ===================================== Appliance -------------Lights ( 40W )

Qty ----4

Usage (hr) ---------100

1

100

5

Fridge ( 300W )

1

720

216

TV

( 100W )

1

120

12

PC

( 300W )

1

30

9

Iron

( 1000W )

1

10

10

Fan

( 50W )

16 + 5 + 216

Total ( kWh ) -----------16

+ 12 + 9 + 10 = 268

200 x 21.8 cents per kWh = $43.60 68 x 28.9 cents per kWh = $19.65 -----Total bill $63.25 ====== B.Digital storage =============== SELF-BURNED CDs cannot hold data forever according to a new report in the Munich-based magazine PC Professionell. If backups are not renewed every five years, information might be lost. Lower quality products will lose data even faster. Users are advised to make multiple back-ups of personal photographs and business papers and to use a variety of storage devices. Users should routinely check their stored files. Upgrades are not a bad idea either as storage units can sustain damage which is not always visible to the naked eye. It's best to transfer data stored on old devices to newer media regularly. Otherwise, computer users run the risk of holding their data in formats that cannot be read by modern computers.