Computer Science

Volume, Title, and Unique Books data collected on May 31, 2003.
Circulation statistics for the ALC fiscal year ending May 31, 2003.

Volume Count and Average Age

Counts and average ages of volumes (individual barcoded items) in Computer Science. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899
1900-1909				1		1
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959	2		1	1		4
1960-1969	15	1	54	24	1	95
1970-1974	21	3	31	39	9	103
1975-1979	28	2	46	51	9	136
1980-1984	84	18	45	223	45	415
1985-1989	180	56	73	359	70	738
1990-1994	354	155	33	127	50	719
1995	113	64	2	11	2	192
1996	77	63	2	14	11	167
1997	134	57	8	25	5	229
1998	111	95	14	18	9	247
1999	164	151	8	7	7	337
2000	118	98	4	1	6	227
2001	210	61	9	2	4	286
2002	89	75	7	1	2	174
2003	2	20				22
Totals	1,702	919	337	904	230	4,092
Average Age	1994	1997	1982	1986	1988	1992
Percent of Collection	0.76%	0.43%	0.23%	0.67%	0.33%	0.52%

Title Count and Average Age

Counts and average ages of titles (excludes duplicate copies) in Computer Science. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899
1900-1909				1		1
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959	2		1	1		4
1960-1969	13	1	38	21	1	68
1970-1974	21	3	31	37	7	83
1975-1979	27	2	46	51	9	125
1980-1984	82	18	45	218	44	371
1985-1989	155	56	72	341	70	646
1990-1994	172	140	33	125	49	482
1995	65	59	2	11	2	133
1996	54	57	2	14	11	128
1997	58	52	8	24	5	132
1998	53	79	14	18	9	162
1999	46	118	7	7	7	176
2000	43	81	4	1	6	130
2001	42	54	9	2	4	109
2002	29	66	6	1	2	102
2003	1	17				18
Totals	863	803	318	873	226	2,870
Average Age	1991	1996	1983	1986	1988	1990
Percent of Collection	0.46%	0.51%	0.25%	0.72%	0.36%	0.52%

Unique Books Count and Average Age

Counts and average ages of unique books (titles held by only one ALC library) in Computer Science. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU
1600-1699
1700-1799
1800-1899
1900-1909				1
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959	2
1960-1969	9		24	14
1970-1974	14	3	22	22	4
1975-1979	19		42	41	8
1980-1984	66	15	32	183	28
1985-1989	116	43	49	298	57
1990-1994	113	117	22	108	30
1995	32	51	2	7	2
1996	33	47	1	8	6
1997	28	41	5	13	4
1998	23	58	11	14	5
1999	21	84	4	5	5
2000	22	60	1	1	3
2001	16	47	6	1	3
2002	14	57	4	1	1
2003		15
Totals	528	638	225	717	156
Average Age	1990	1996	1983	1986	1988

Total Circulation

A count of charges and renewals for Computer Science. This count only includes circulation of bound monographs, CDs, videos, and DVDs.

	Patron System
	ACU	APL	HSU	McM	CJC	HPU	Total
ACU Items	241	8	26	11	10	0	296
APL Items	41	1,659	24	15	36	0	1,775
HSU Items	2	0	13	2	0	0	17
McM Items	20	5	2	27	0	0	54
HPU Items	0	0	0	3	0	1	4
Totals	304	1,672	65	58	46	1	2,146

Circulation by Item Age

A count of charges and renewals for Computer Science, broken down by item age and item owner. This count only includes circulation of bound monographs, CDs, videos, and DVDs, and only items which have a valid date in their DATE_1 field.

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899
1900-1909
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959
1960-1969				2		2
1970-1974	2	1	2			5
1975-1979
1980-1984	5	8	2	7		22
1985-1989	12	21	5	23		61
1990-1994	70	117	2	7	4	200
1995	22	95				117
1996	22	89		5		116
1997	45	75	1	6		127
1998	21	207	4	3		235
1999	33	450	1			484
2000	19	267				286
2001	34	247		1		282
2002	11	191				202
2003		7				7
Totals	296	1,775	17	54	4	2,146
Percent of Circulation	0.76%	0.33%	0.07%	0.57%	0.09%	0.35%

Non-Circulating Use

A count of Non-Circulating usage for Computer Science (as recorded by the circulation "Mark Item Used" command). This count only includes bound monographs, CDs, videos, and DVDs.

ACU	APL	HSU	McM	HPU
165	0	13	5	0

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