Q: What is the difference between 1D and 2D barcodes?
A: 1D barcode is short for one dimensional barcode. It is a method of storing information encoded
is a single row using horizontal width. This information can be ready by machines and
sometime contains a row of human readable text. The shortcoming of this technology is as
more data is encoded, the bar gets wider, making it harder to read by some machines. An
example of 1d bar code:
Conventional 1D barcode (Code 39)
2 D or Two dimensional bar codes can store more data than 1d barcodes because it stores it
vertically. The method of storing data allows for tremendous volume of data that can be
stored, creating a variety of symbologies; PD417, Data Matrix, and Maxicode. A sample of a
2D barcode:
2D Barcode (PDF417)
Q: What are the different types of barcodes and what uses do they have?
A:
Different Barcodes and their uses:
Code 39
Code 39, also known as 3 of 9 Code and USD-3, is an alpha-numeric variable length
symbology widely used- in non-retail environments. It is the standard bar code used by the
United States Department of Defense and the Health Industry Bar Code Council (HIBCC).
Code 39 may use a check digit, but may be used without a check digit. Code 39 is normally
used to encode digits, upper case letters, and a few special characters. Representing lower
case letters and
most of the special characters is done using “full ASCII” mode. This requires
twice as many bar code characters and consequently twice as much space on the paper.
Software
Operating
System
SLP
450
SLP
440
SLP
430
SLP
420
SLP
410
SLP
240
SLP
220
SLP
200
SLP
100
SLP
Plus
EZ30
Windows
VISTA and
all 64 bit
OS
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
N/A
N/A
Window
2000 (SP2)
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
N/A
N/A
Windows
XP (SP2)
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
v. 6.6
N/A
N/A
Windows
98
N/A
N/A
N/A
N/A
N/A
v 4.61
v 4.61
v 4.61
v 4.61
v 3.4
v 3.4
Windows
95
N/A
N/A
N/A
N/A
N/A
v 4.61
v 4.61
v 4.61
v 4.61
v 3.4
v 3.4
Windows
ME
N/A
N/A
N/A
N/A
N/A
v 4.61
v 4.61
v 4.61
v 4.61
v 3.4
v 3.4
MAC OS
10.2
and higher
v 1.7
v 1.7
v 1.7
v 1.7
v 1.7
v 1.7
N/A
N/A
v 1.7
N/A
N/A
Summary of Contents for SLP 420
Page 16: ......
