how much info in 88 bytes?

Hi

I need to know roughly how much info can be squeezed into 88 bytes...
numbers, chars, etc..

I can't find an answer in google...

 

What is the processor of the machine your running this on? Is it 32 or 64 bit?

If 32 then an int is 4 bytes. So you could save a -2147483648 through 2147483647 number in the 4 bytes.

A character should be 1 byte so you could store a string of 88 bytes.

Here's a chart I found that looks to be UNIX based but may help you in your search:

Char_t ............. Signed Character 1 byte
UChar_t ............ Unsigned Character 1 byte
Short_t ............ Signed Short integer 2 bytes
UShort_t ........... Unsigned Short integer 2 bytes
Int_t .............. Signed integer 4 bytes
UInt_t ............. Unsigned integer 4 bytes
Long_t ............. Signed long integer 8 bytes
ULong_t ............ Unsigned long integer 8 bytes
Float_t ............ Float 4 bytes
Double_t ........... Float 8 bytes
Text_t ............. General string
Bool_t ............. Boolean (0=false, 1=true)
Byte_t ............. Byte (8 bits)
Version_t .......... Class version identifier
Option_t ........... Option string
Ssiz_t ............. String size

Edit: Just wrote a quick C# program and the values above jive.

 

Actually I need to know how long can a numer or an alfanumeric string be, on a 88 bytes RFID tag.

Thanks for your answer BTW

 

RFID....will need to dig into that

 

Here's a breakdown of a 96 bit RFID:

Header, which is 8 bits and is common for all SGTIN-96 tags
Filter, which is three bits and specifies if the tagged object is an item, case or pallet
Partition, which is three bits and indicates how the subsequent fields are divided to get the correct data for each
Company Prefix, which is 20-40 bits (depending on the Partition) and contains the company's EAN.UCC Company Prefix
Item Reference, which is 24-4 bits (depending on the Partition) and contains the item's GTIN item reference number
Serial Number, which is 38 bits and contains the item's unique serial number


Found here: http://www.devx.com/enterprise/Article/32251


Here's another example:

Text Encoding Example:

The following VB code encodes a text string into a 96 bit RFID tag. Up to 11 characters may be encoded in a 96 bit tag; 88 bits are used to encode text (8 bits per character).

string Name = "John Smith"
rfidWriter.DataToEncode = "~n0080~t088" & Name


From: http://www.idautomation.com/rfid_faq.html

Bill

 

Thanks man!

Just the kind of info I needed!