Razlaga pojmov o velikosti, hitrosti.....
vir: http://www.lyberty.com/encyc/articles/kb_kilobytes.htmlIntroduction -
K = 1,024 ; k= 1,000 ; B = Bytes ; b= bitsFilesize
(how big a file is on your computer) is usually measured in units of "kilobytes," "megabytes," and "gigabytes."In this computing (binary, but not data transfer) usage, '
K' (uppercase) represents a multiplier of 1,024.Other abbreviations use this same base of 1,024:
1 KB
(one KiloByte) = 1,024 Bytes (approximately 1 thousand Bytes)1 MB
(one MegaByte) = 1,024 KB (approximately 1 million Bytes)1 GB
(one GigaByte) = 1,024 MB (approximately 1 billion Bytes)Data transfer speed
on the other hand is expressed in bits. In bit rates the abbreviations are as follows:1 kbps = 1,000 bits per second
1 Mbps = 1,000,000 bits per second.
1 Gbps = 1,000,000,000 bits per second.
kbps
(kilobits/sec) means thousands of bits per secondmbps
or Mbps (megabits/sec) means millions of bits per secondgbps
or Gbps (gigabits/sec) means billions of bits per second (where "billion"= 1,000,000,000.00")tbps
(terabits/sec) means trillions of bits per second (as in "terabit router" or "terabit speeds")pbps
(petabits/sec) means quadrillions of bits per second.Examples:
"Gigabit Ethernet [1000Base-T] is capabile of speeds up to 1000 mbps (mega-bits per second), or 1 gbps."
"10Base-T ethernet operates at 10 mbps and uses baseband transmission methods."
"SATA II defines the architecture (SATA-300) for Serial ATA communications of up to 3 gbps."
Alternate forms:
bbps
= billion bits per second (where b = 1 000 000 000)mbps
= million bits per second (where m = 1 000 000)kbps
= thousand bits per second (where k = 1 000)tbps
= trillion bits per second (where t = 1 000 000 000 000) [theoretical]bits and Bytes: 1 Byte = 8 bits; kbps* 0.1220703125 = KB/s
Because there are 8 bits in a Byte, to get a bit-rate (speed) from values given in Bytes,
you must multiply the total number of Bytes by 8.
Conversely, to get KB/s values from bit rates, you must divide the total number of bits by 8, then divide by 1,024.
For converting KB/s to kbps (bit rate from Byte values), the equation is basically as follows:
<K>
KiloBytes * 1,024 = <t> total Bytes<t>
total Bytes * 8 = <b> bits<b>
bits / 1,000 = <k> kilobits
30. maj 2010

Podjetje PowerColor, ki velja za enega največjih AMD-jevih partnerjev pri izdelavi grafičnih kartic, opremljenih s procesorji ATI Radeon, je namreč izdelalo svojevrstno kartico, ki lahko deluje v tandemu ne zgolj z Radeon procesorji, temveč tudi karticami iz drugega tabora. PowerColor Radeon HD 5770 Evolution je v ta namen opremljen s posebnimi čipom LucidLogix Hydra, ki mu omogoča komunikacijo z drugimi Radeoni pa tudi karticami Nvidia GeForce.

Gre za svežo inovacijo, ki jo bodo pri podjetju PowerColor javnosti predstavili v začetku junija na sejmu Computex, takrat pa bodo znane tudi ostale tehnične lastnosti kartice ter njena priporočena prodajna cena.
www.powercolor.com.tw1. junij 2010