CMPS 002 - Computer Literacy

Prof. Paulo Franca

CyberSlug Rules!

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• UC Santa Cruz
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Datacare   Ahshay

Bytes and beyond...

• A character = 8 bits = 1 Byte
• A byte = 2^8 = 256 possibilities
• Computers like progression by powers of 2
• 8 bits = 1 byte

Kilos of bytes?

K Kilo thousand KiloByte K KB 1024 bytes 2^10 bytes approximated for organic units as 1,000 bytes apporximately 1 half page of text K means ~1000, could be 1000 bits not KB, but Kbits	M Mega million MegaByte M MB 1,048,576 = 1024 KB = 1024 * 1024 bytes 2^20 bytes apporximated for organic units as 1,000,000 bytes approximately a small novel or a single 3.5 inch HD floppy (1.44 MB)
G Giga billion G GB 1024 * 1024 * 1024 = 1,073,741,824 2 ^ 30 bytes approximated for organic units as 1,000,000,000 bytes approximately 1000 novels large disk drive (becoming common)	T Tera trillion T TB 1024 * 1024 * 1024 * 1024 2 ^ 40 bytes approximated for organic units as 1,000,000,000,000 bytes approximately the entire UCSC library very large storage