Wednesday, September 17, 2008

Week 2 - Class 2

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Question is 256 bigger than 4?
NB: you need to know what the units are. In computers the units are:

bit
byte
KiloByte (KB)
MegaByte (MB)
GigaByte (GB)
TerraByte (TB)

Exercise:
Find the best buy USB memory keyring for not more than €20.
Specify the make,model,TOTAL price, store.

Prefixes for bit and byte
Decimal
Value SI
10001 k kilo-
10002 M mega-
10003 G giga-
10004 T tera-
10005 P peta-
10006 E exa-
10007 Z zetta-
10008 Y yotta-
Binary
Value IEC JEDEC
10241 Ki kibi- K kilo-
10242 Mi mebi- M mega-
10243 Gi gibi- G giga-
10244 Ti tebi-

10245 Pi pebi-

10246 Ei exbi-

10247 Zi zebi-

10248 Yi yobi-

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