1. MARC Machine Readable Cataloging Presentation by: Khalid Mahmood
Dept. of Library & Information Science, Punjab University, Lahore

2. FIELD
Group of one or more data elements defined and manipulated as a unit.
e.g.
Title Field
Imprint Field
Series Field

3. TAG
Labels for fields.
e.g.
Title Proper
Imprint

4. INDICATORS
Two characters at the beginning of each field. They provide additional information about the field.
e.g.
Title Proper
Indicator 1
0 No title added entry
1 Title added entry
Indicator 2
0-9 Non-filing characters

5. SUBFIELD Data elements within fields. e.g. Imprint field contains:
Place of Publication
Publisher
Date of Publication
Shown as:
$a, $b, $x

6. REPEATABLE FIELD A field that may occur more than once in a record.
e.g.
Author Field
Subject Field

7. RECORD
The collection of fields containing all data elements of a given unit of information.
e.g.
A Book
A Map
A Serial Title

8. LEADER
Data elements that provide information for the processing of the record.
Contains numbers or coded values.
Fixed length of first 24 characters.
Generated automatically by computer.

9. LEADER 00-04 Logical record length 05 Record status 06 Type of record
07 Bibliographical level
08 Type of control
09 Undefined
10 Indicator count
11 Subfield code count
12-16 Base address of data
17 Encoding level
18 Descriptive cataloging form
19 Linked record requirement
20 Length of the length-of-field portion
21 Length of the starting-character-position portion
22 Length of the implementation-defined portion
23 Undefined

10. DIRECTORY
A series of entries that contain the tag, length, and starting location of each variable field within a record.
Contains 12 characters for each field.
Constructed automatically.
Starting
Field character
Tag length position

11. VARIABLE FIELDS 0XX Control information, numbers, codes 1XX Main entry
2XX Titles, statement of responsibility, edition, imprint
3XX Physical description
4XX Series statements
5XX Notes
6XX Subject added entries
7XX Added entries other than subject or series
8XX Series added entries
9XX Local use

12. MARC FILE
01054nam a 495395 850119s ii eng  9(DLC)  a7bcbccorignewd2encipf19gy-gencatlg a  cRs100.00 aI E 48429 aDLCcDLCdDLC aa-ii---00aLAW00a /32a 2191 aSeth, H. B.10aHindu undivided family under direct tax laws /cby H.B. Seth and B.G. Gandhi ; foreword by M.S. Yajnik. a2nd ed. aIndore :bWadhwa,c1984. axl, 307 p. ;c25 cm. aSpine title: H.U.F. under direct tax laws. a"Latest case law upto May 1984": p. [xxix]-xl. aIncludes index. 0aJoint familyxTaxationzIndia. 0aInheritance and transfer taxxLaw and legislationzIndia.1 aGandhi, B. G. eAPF/OVR bc-LLhLAW INDI Seth 1984 tCopy 1wBOOKS

13. DATA ENTRY IN MARC

14. DATA ENTRY IN MARC

15. OUTPUT IN MARC

16. WHY MARC FORMATS DIVERGE?
Purpose of development
Different cataloguing standards
Different subject control and classification systems
Different official languages
Different language scripts
Different character sets and codes
Technical differences