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Standards
Common pin outs for
computers etc..
USB / IEEE 1394 (Firewire)
Bus
Speed Comparison
802.11
Wireless Standards
AGP Data Transfer Rates
File System details
Windows File System Compatibility
CPU Sockets
Hard drive Standards IDE
RS-232 Vs RS-422
Barcode Scanners
USB Vs Firewire Data Rates
Top of page
|
Specification |
Maximum
data rate (Mbit/s) |
Comments |
| USB 1.1 |
12 |
Supports low-speed (up to
1.5Mbit/s) peripherals such as mice and keyboards, as well as printers,
scanners and other medium-speed devices. |
| USB 2.0 |
480 |
Also called
high-speed USB, the new standard is fast enough to support external hard
drives, CD-RW drives and other high-speed peripherals. |
| IEEE 1394 (FireWire) |
400 |
Popular spec for digital video
camera; allows direct connection of IEEE 1394 devices (such as a DVD to
TV) without the signal passing through a PC. |
Bus
Speed Comparison Top of page
|
Connection
Type |
Maximum bandwidth |
| MB/s |
Mbit/s |
| ATA/133 |
133 |
1064 |
| ATA/100 |
100 |
800 |
| Wide Ultra2 SCSI |
80 |
640 |
| ATA/66 |
66 |
528 |
| USB 2.0 |
60 |
480 |
| WiFi5
(802.11a) |
54 |
432 |
| FireWire (IEEE 1394) |
50 |
400 |
| Ultra2 SCSI |
40 |
320 |
| Fast ethernet |
12.5 |
100 |
| Parallel port
(ECP/EPP) |
3 |
24 |
| USB 1.1 |
1.5 |
12 |
| WiFi
(802.11b) |
1.375 |
11 |
| Standard ethernet |
1.25 |
10 |
| Bluetooth |
0125 |
1 |
802.11 Wireless
Standards Top of page
|
802.11 standard |
What it means in English |
| 802.11a |
54Mbit/s top speed,
incompatible with 802.11b |
| 802.11b |
11Mbit/s top
speed, popular in home and small business networks. |
| 802.11e |
Enhances audio and video
transmission on 802.11a,"b" or "g" networks. |
| 802.11g |
New standard
with 54bit/s top speed, compatible with 802.11b. |
| 802.11i |
Adds enhanced 128-bit
encryption to 802.11a, "b" or "g" networks. |
AGP Data Transfer Rates
Top of page
|
AGP SPEED |
TRANSFER SPEED (Mbytes/s) |
| AGP 1X |
266 |
| AGP 2X |
533 |
| AGP 4X |
1066 |
| AGP 8X |
2133 |
File System details
Top of page
| |
FAT |
FAT32 |
NTFS |
| Minimum to maximum volume size |
From floppy disk size up to 4GB |
From 512 MB to 2TB.
(note: in Windows 2000, you can only format a FAT32 volume
up to 32GB) |
Recommended minimum volume size is
approximately 10MB. Recommended practical maximum size is 2TB (terabytes).
Can not be used on floppy disks. |
| Supports Domains |
NO |
NO |
YES |
| Maximum file size |
2GB |
4GB |
Limited only by size of volume |
Windows File System Compatibility
Top of page
| OPERATING
SYSTEM |
File systems supported |
| FAT |
FAT32 |
NTFS |
| Windows XP |
YES |
YES |
YES |
| Windows 2000 |
YES |
YES |
YES |
| Windows NT4.0 (service
pack 4) |
YES |
NO |
YES |
| Windows 98 / ME |
YES |
YES |
YES |
| Windows 95 OSR2 |
YES |
YES |
NO |
| Windows 95 |
YES |
NO |
NO |
CPU Sockets
Top of page
| CPU |
Motherboard Attachment |
| Pentium (75 to 133MHz) |
Socket 5 or 7 |
| Pentium (133 to 200MHz) |
Socket 7 |
| Pentium MMX |
Socket 7 |
| Pentium Pro |
Socket 8 |
| Pentium II |
Slot 1 |
| Pentium III |
Slot 1 or Socket 370 |
| Celeron (300 to 433MHz) |
Slot 1 or Socket 370 |
| Celeron (466 or faster) |
Socket 370 (PPGA or FC-PGA) |
| K5 |
Socket 5 or 7 |
| K6, K6-2, K6-III |
Socket 7 or Super 7 |
| Athlon |
Slot A |
| Athlon (Thunderbird) |
Socket A |
| Duron |
Socket A |
Hard drive Standards IDE
Top of page
|
Standard |
Introduced data transfer mode |
Also known as |
Maximum
burst rate (megabytes per second) |
| ATA-1 |
PIO mode 1 |
IDE |
1 to 4 |
| ATA-2 |
PIO mode 3, 4 |
Enhanced IDE (EIDE),
Fast-ATA |
11.1,
16.7 |
| ATA-3 |
No performance change; added
diagnostic and security features |
| ATA-4 |
Ultra DMA mode 2 |
Ultra DMA/33, Ultra ATA/33 |
33 |
| ATA-5 |
Ultra DMA mode 4 |
Ultra DMA/66, Ultra ATA/66 |
66 |
| ATA-6 |
Ultra DMA mode 5 |
ATA/100, Ultra ATA/100 |
100 |
RS-232 Vs RS-422
Top of page
| Distance |
Preferred Interface |
| 15 meters (50 feet) max |
RS-232 |
| 1220 meters (4000 feet) max |
RS-422 |
| Over 1220 meters (4000 feet) |
RS-232 with modem |
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