Memories

1
Memories

• September 25, 2007
• ECE 109 J Dean Brock

2
Area

• Area Width Height
• If you know two of the three,
• you can figure out the third
• Width Area / Height
• Height Area / Width

3
Memoriesk x m array of bits

• Bits Locations WordSize
• If you know two of the three,
• you can figure out the third
• Locations are Addresses
• Generally Locations are a power of two
• Locations 2AddressSize

4
Usual constants

• Bits and bytes
• One byte 1 B 8 bits
• 1000 210
• 1 k 210
• 1 M 220
• 1 G 230
• How many bits is 512 MB