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Data Measurement Chart



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Data Measurement Chart

Starting with the Data Measurement Chart, you can see the difference between things like a "Kilobyte" and a "Megabyte" and other computer memory terms. For example, an average web page might be about 16KB in size. To understand just how big that is, you can consult the first chart, the Data Measurement Chart.

The charts below will give you a clear understanding of:

  1. the size of computer files
  2. the speed of transferring those files over the Internet
  3. and how fast those transfers are relative to the type of connection one has to the Internet. Remember, speed is everything.

There are three basic, simple things you need to know first:

  1. Definitions of terms which express the size of computer files and/or computer data.
  2. Definitions of terms which describe the speed at which various Internet connections will transmit data.
  3. The difference between the speed of those Internet connections.

Next, you want to know definitions of terms which describe the speed at which various Internet connections will transmit data. The Data Transfer Rate Chart explains this and will tell you the difference between a "Kbps" connection or a "Gbps" connection.

The final chart, the Connection Speed Chart, shows the difference between having a 28.8K modem or a DSL connection and so forth.

Below the three charts begins the glossary definitions of terms used in video, film and Internet technology.

 
Data Measurement Chart
Data Measurement Size
Bit Single Binary Digit (1 or 0)
Byte 8 bits
Kilobyte (KB) 1,024 Bytes
Megabyte (MB) 1,024 Kilobytes
Gigabyte (GB) 1,024 Megabytes
Terabyte (TB) 1,024 Gigabytes
Petabyte (PB) 1,024 Terabytes
Exabyte (EB) 1,024 Petabytes

 
Data Transfer Rate Chart
Data Transfer Rates Data Rate (per second) Data Rate (per second) Data Rate (per second)
Kbps or Kb
(Kilobits per second)
1,000 Bits 125 Bytes
Mbps or Mb
(Megabits per second)
1,000,000 Bits 125,000 Bytes 122 Kilobytes
Gbps or Gb
(Gigabits per second)
1,000,000,000 Bits 125,000,000 Bytes 119 Megabytes

 
Connection Speed Chart
Internet Technology Data Rate (per second) Data Rate (per second) Data Rate (per second) Data Rate (per second)
28.8K Modem 28.8 Kbps 28,800 Bits 3,600 Bytes 3.5 Kilobytes
36.6K Modem 36.6 Kbps 36,600 Bits 4,575 Bytes 4.4 Kilobytes
56K Modem 56 Kbps 56,000 Bits 7,000 Bytes 6.8 Kilobytes
ISDN 128 Kbps 128,000 Bits 16,000 Bytes 15 Kilobytes
T1 1.544 Mbps 1,544,000 Bits 193,000 Bytes 188 Kilobytes
DSL 512 Kbps to 8 Mbps 8,000,000 Bits 1,000,000 Bytes 976 Kilobytes
Cable Modem 512 Kbps to 52 Mbps 53,000,000 Bits 6,625,000 Bytes 6,469 Kilobytes (6.3MB/sec)
T3 44.736 Mbps 44,736,000 Bits 5,592,000 Bytes 5,460 Kilobytes (5.3MB/sec)
Gigabit Ethernet 1 Gbps 1,000,000,000 Bits 125,000,000 Bytes 122,070 Kilobytes (119MB/sec)
OC-256 13.271 Gbps 13,271,000,000 Bits 1,658,875,000 Bytes 1,619,995 Kilobytes (1.5GB/sec)

 
Computer Technology Chart
Computer Technology Data Rate (per second) Data Rate (per second) Data Rate (per second) Data Rate (per second)
ADB 256 Kbps 256,000 Bits 32,000 Bytes 31.2 Kilobytes
USB 12 Mbps 12,000,000 Bits 1,500,000 Bytes 1,464 Kilobytes (1.42MB/sec)
USB 2.0 480 Mbps 480,000,000 Bits 60,000,000 Bytes 58,593 Kilobytes (1.42MB/sec)
FireWire (a.k.a. "IEEE 1394" or "i.Link") 400 Mbps 400,000,000 Bits 50,000,000 Bytes 48,828 Kilobytes (47.6MB/sec)
Ultra ATA/33 (a.k.a. Ultra DMA/33) 33 MB/sec
Ultra ATA/66 (a.k.a. Ultra DMD/66 or Fast ATA-2) 66 MB/sec
SCSI-1 5 MB/sec
SCSI-2 5-10 MB/sec
Fast SCSI-2 10-20 MB/sec
Wide SCSI-2 20 MB/sec
Fast Wide SCSI-2 20 MB/sec
Ultra SCSI-3 (8-bit) 20 MB/sec
Ultra SCSI-3 (16-bit) 40 MB/sec
Ultra-2 SCSI 40 MB/sec
Wide Ultra-2 SCSI 80 MB/sec
Ultra-3 SCSI 160 MB/sec
Serial ATA (Gen 1) 150 MB/sec 1.2 Gbps
Serial ATA (Gen 2) 300 MB/sec 2.4 Gbps
Serial ATA (Gen 3) 600 MB/sec 4.8 Gbps

 
Video Format Chart
Video Formats NTSC Resolution (525 Vertical Lines)
8mm 250 Horizontal Lines
VHS 250 Horizontal Lines
VHS-C 250 Horizontal Lines
Hi8 400 Horizontal Lines
S-VHS 400 Horizontal Lines
DV 500 Horizontal Lines
DVD 500 Horizontal Lines

 
Audio/Video Chart
Audio/Video Technology Data Rate (per second) Data Rate (per second) Data Rate (per second) Data Rate (per second)
CD 1.4112 Mbps 1,411,200 Bits 176,400 Bytes 172 Kilobytes
DVD 10 Mbps 10,000,000 Bits 1,250,000 Bytes 1,220 Kilobytes (1.1MB/sec)
DV 30.1 Mbps 30,195,712 Bits 3,774,464 Bytes 3,686 Kilobytes (3.6MB/sec)
DLP 37 Mbps to 43 Mbps 43,000,000 Bits 5,375,000 Bytes 5,249 Kilobytes (5.2MB/sec)

 
Data Comparison Chart
Kilobits (Kbps) Bits (bps) Megabits (Mbps) Bytes (Bps) Kilobytes (KBps) Megabytes (MBps) Minutes On 650MB CD Minutes On 4.7GB DVD
28 28,000 0.028 3,500 3.41 0.00334 3,245 24,031
30 30,000 0.03 3,750 3.66 0.00358 3,029 22,429
56 56,000 0.056 7,000 6.83 0.00668 1,622 12,015
80 80,000 0.08 10,000 9.76 0.00954 1,135 8,410
100 100,000 0.1 12,500 12.20 0.01192 908 6,728
150 150,000 0.15 18,750 18.31 0.01788 605 4,485
200 200,000 0.2 25,000 24.41 0.02384 454 3,364
300 300,000 0.3 37,500 36.62 0.03576 302 2,242
500 500,000 0.5 62,500 61.03 0.05960 181 1,345
800 800,000 0.8 100,000 97.65 0.09537 113 841
900 900,000 0.9 112,500 109.86 0.10729 100 747
1,000 1,000,000 1 125,000 122.07 0.11921 90 672
2,000 2,000,000 2 250,000 244.14 0.23842 45 336
4,000 4,000,000 4 500,000 488.28 0.47684 22 168
5,000 5,000,000 5 625,000 610.35 0.59605 18 134
10,000 10,000,000 10 1,250,000 1,220.70 1.19209 9 67
15,000 15,000,000 15 1,875,000 1,831.05 1.78814 6 44
30,000 30,000,000 30 3,750,000 3,662.10 3.57628 3 22

 

Tim Favreau