On-Line Data-Acquisition Systems in Nuclear Physics, 1969

by National Research Council . Ad Hoc Panel on On-line Computers in Nuclear Research

The comprehensive tables of properties of small and medium-sized computers appearing on the next 6 pages are from D. J. Theis and L. C. Hobbs, "Mini-Computers for Real-Time Applications," Datamation, Vol. 15, No. 3, p. 39 (March 1969) and are reprinted here by permission of the publisher, F. D. Thompson Publications, Inc., 35 Mason Street, Greenwich, Conn. 06830.

MANUFACTURER / MODEL NUMBER	Digital Equipment Corp. PDP-9	Digital Equipment Corp. PDP-9/L	Computer Automation PDC-816	ControlData Corporation 1700	Data General Nova	DataMate Computer Systems, Inc. Data Mate-16	Decade Computer Corp. 70/2	Electronic Assoc. Inc. 640	EMR 6130	Hewlett Packard 2114A	Hewlett Packard 2115A	Hewlett Packard 2116B	Honeywell DDP-416
MEMORY
Memory cycle time (µs)	1.0	1.5	8	1.1	2.6	1.0	.860	1.65	0.775	2.0	2.0	1.6	0.96
Memory word length (bits)	18	18	16	18	16	16	18	16	18	16	16	16	16
Minimum memory size (words)	8K	4K	4K	4K	1K	4K	4K	4K	8K	4K	4K	8K	4K
Memory increment size (words)	8K	4K	4K	4K	1K,2K,4K	4K	4K	4K	8K	4K	4K	8K	4K
Maximum memory size (words)	32K	16K	16K	32K	32K	32K	16K	32K	32K	8K	8K	32K	16K
Parity check (std.,opt.,no)	opt.	opt.	no	std.	no	opt.	std.	no	std.	opt.	opt.	opt.	opt.
Memory protect (std.,opt.,no)	opt.	opt.	no	std.	no	std.	std.	std.	std.	no	opt.	opt.	opt.
CPU FEATURES
Instruction word length(s)	18	18	16	16/32	16	16	16/32	16/32	16/32	16	16	16	16/32
Number of accumulators (or general purpose registers that can be used as accumulators)	1 std. 1 opt.	1 std. 1 opt.	1	2	4	2	1	2	2	2	2	2	1
Number of hardware registers (not including index registers)	1 std. 1 opt.	1 std. 1 opt.	6	8	10	6	5	9	4	7	7	7	4
Number of index registers (indicate whether they are hardware, memory or other techniques)	7 (auto. index mem. reg.)	7 (auto. index mem. reg.)	1 hardware	1 hardware 1 memory	2 hardware 16 memory	1 hardware	1 memory	1 hardware	3 hardware	none	none	none	none
How many bits for operation code	4	4	5	4	5	5	6	4	5	4	4	4	6
How many bits for address modes	1	1	3	4	3	3	3	3	3	2	2	2	1
Number of addressing modes	2	2	8	7	8	8	5	3-8	7	4	4	4	2
How many bits for address	13	13	8	8/15	8	8	7/14	9/15	8/15	10	10	10	9/14
In this machine one can directly address ____ words	8,192	4,096	768	256	1,024	256	16,384	512	32,768	2,048	2,048	2,048	1,024
in ____ µs	2.0	3.0	16.0	1.1	5.2	2.0	1.9	1.65	1.9	2.0	2.0	1.6	0.96
and indirectly address ____ words	32K	16K	16K	32K	32K	32K	16K	32K	32K	8K	8K	32K	16K
in ____ µs	3.0	4.5	24.0	3.3	7.8	3.0	1.9	3.3	2.9	4.0	4.0	3.2	1.92
Indirect addressing (multi-level, single-level, no)	Single-level	Single-level	Multi-level	Multi-level	Multi-level	Multi-level	Single-level	Multi-level	Multi-level	Multi-level	Multi-level	Multi-level	Multi-level
ARITHMETIC OPERATIONS
Store time for full word (µs)	2.0	3.0	16.0	2.2	5.5	2.0	1.9	3.3	1.9	4.0	4.0	3.2	1.92
Add time for full word (µs)	2.0	3.0	16.0	2.2	5.9	2.0	1.9	3.3	1.9	4.0	4.0	3.2	1.92
Fixed-point hardware mult/divide (std., opt., no)	opt.	opt.	no	std.	no	std.	opt.	std.	std.	no	opt.	opt.	no
Multiply time hardware (µs)	3.0-11.0	4.5-16.5	—	7	—	6.0	6.5	18.15	4.5-8.3		24.0	19.2
Divide time hardware (µs)	3.0-12.0	4.5-18.0	—	9	—	7.0	12.5	18.975	7.9-11.4		26.0	20.8
Multiply time software (µs)	281 max.	421 max.	102	—	329.3-334.1	N/A				187	187	150	154.6
Divide time software (µs)	352 max.	528 max.	178	—	424.8-519.2	N/A				387	387	310	220.8
I/O CAPABILITY
Data path width (bits)	18	18	8/16	16	16	16	16	16	16	16	16	16	16
Direct memory access (DMA) channel (std., opt., no)	std.	no	std.	opt.	std.	opt.	opt.	opt.	std.	no	opt.	opt.	opt.
Maximum DMA word transfer rate	1.0 MHZ	—	125 KHZ	900 KHZ	312 KHZ	1.0 MHZ	1.1 MHZ	600 KHZ	1.26 MHZ	—	500 KHZ	625 KHZ	1.0 MHZ
Number of external priority interrupt levels provided in basic system	1	1	3	16	16	8	1	7	none	8	8	16	2
Maximum number of external interrupts	256	256	256	16	62	64	32	64	126	56	40	48	48
Response time (µs) including time to save registers ofinterrupted program and initiate new program execution	4.0	6.0	48.0	50.0	38.6	5.0	8.0	5.8	13.2	10.0	10.0	8.0	4.8
OTHER FEATURES
Power failure protect (std., opt., no)	opt.	opt.	opt.	std.	std.	std.	opt.	std.	std.	opt.	opt.	std.	std.
Automatic restart after power failure (std., opt., no)	opt.	opt.	opt.	opt.	opt.	std.	opt.	no	opt.	opt.	opt.	opt.	opt.
Real-time clock or internal timer (std., opt., no)	std.	opt.	opt.	opt.	opt.	opt.	opt.	opt.	opt.	opt.	opt.	opt.	opt.
SOFTWARE
Assembler (1 pass, 2 pass, both)	2 pass	2 pass	2 pass	2 pass	2 pass	2 pass	1 pass	2 pass	both	2 pass	2 pass	2 pass	both
Relocatable assembler (yes, no)	yes	yes	yes	yes	no	yes	yes	yes	yes	yes	yes	yes	no
Minimum core size necessary to use this relocatable assembler	8K	4K	4K	4K	—	4K	4K	8K	8K	4K	4K	4K	—
Macro assembler capability	yes	yes	no	yes	no	yes	no	no	yes	no	no	no	no
Compilers available (specify explicitly, e.g., Fortran II, IV, ASA Basic Fortran, etc.)	Fortran IV	Fortran IV	none	ASA Basic Fortran	none	none	Fortran IV	Fortran IV	ASA Basic Fortran Fortran IV	Algol, ASA Basic Fortran	Algol, ASA Basic Fortran	Algol, ASA Basic Fortran	none
Conversational compilers (e.g., FOCAL, BASIC, CAL, etc.)	FOCAL	none	none	none	none	none	CHAT	DOI	none	BASIC	BASIC	BASIC	none
Real-time executive monitor available (yes, no)	yes	yes	no	yes	no	no	no	no	yes	no	no	yes	no
Disc operating system available (yes, no)	yes	yes	no	yes	no	no	no	yes	yes	no	yes	yes	yes
BASIC MAINFRAME COSTS
Basic system price with 4K words including power supplies	N/A	$19,000	$11,900	$29,000	$ 7,600	$13,900	$12,800	$26,500	N/A	$ 9,950	$14,500	N/A	$15,700
Price of ASR-33 Teletype (if not already included in Basic System Price)	—	$ 900	$ 1,900	$ 6,000 (ASR-35)	$ 1,400	$ 2,000	$ 1,200	$ 1,200	—	$ 2,000	$ 2,000	—	$ 1,200
Total system price, including ASR-33 Teletype and CPU	—	$19,900	$13,800	$35,000 (ASR-35)	$ 9,000	$15,900	$14,000	$27,700	—	$11,950	$16,500	—	$16,900
Basic system price with 8K words including adequate power supplies, enclosure, control panel	$35,000	$25,000	$17,900	$37,000	$10,885	$20,400	$18,600	$35,500	$46,000	$13,950	$19,500	$24,000	$23,700
Price of ASR-33 Teletype (if not already included in Basic System Price)	Included	$ 900	$ 1,900	$ 6,000 (ASR-35)	$ 1,400	$ 2,000	$ 1,200	$ 1,200	$ 3,100	$ 2,000	$ 2,000	$ 2,000	$ 1,200
Total system price, including ASR-33 Teletype and CPU	$35,000	$25,900	$19,800	$43,000 (ASR-35)	$12,285	$22,400	$19,800	$36,700	$49,100	$15,950	$21,500	$26,000	$24,900
PERIPHERALS AVAILABLE
Magnetic tape available (yes, no)	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Approximate price for operational unit (including controller, computer options necessary, etc.)	$22,000 to $23,000	$22,000 to $23,000	$ 5,700 to $10,000	$22,500	$12,000	$19,500	$12,000	$30,000 to $32,000	$35,200 to $67,200	$12,500 to $15,000	$15,500 to $21,500	$15,500 to $21,500	$23,355 to $35,430
Mass storage device available (yes, no)	yes	yes	yes	yes	yes	yes	yes	yes	yes	no	yes	yes	yes
Approximate price of operational unit (including controller, computer options necessary, etc.)	$ 9,750	$ 9,750	$ 6,500 to $ 9,950	$27,500	$ 6,500 to $ 9,250	$18,000 to $45,000	$15,000	$24,500	$20,200 to $54,700	—	$26,500 to $31,500	$26,500 to $31,500	$22,300 to $36,000
High speed paper tape reader (yes, no)	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Speed (char/sec)	300	300	300	350	300/150	300	300	300	300	300	300	300	300
Approximate price of operational unit	Included	Combination $ 4,800	$ 2,200	$ 4,500	$2,650/ $2,150	$ 2,000	$ 2,500	Combination $ 8,400	Combination $10,100	$ 2,100	$ 2,100	$ 2,100	$ 3,800
High speed paper tape punch (yes, no)	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Speed (char/sec)	50	50	60	120	63.3	120	120	120	60	120	120	120	110
Approximate price of operational unit	Included	Combination $ 4,800	$ 3,300	$ 5,100	$ 2,200	$ 4,000	$ 4,000	Combination $ 8,400	Combination $10,100	$ 4,100	$ 4,100	$ 4,100	$ 4,500
NOTE: N/A = Not Announced—or Not Available

MANUFACTURER / MODEL NUMBER	Honeywell DDP-516	Information Technolgy,Inc. ITI-4900 (Model 20)	Interdata Model 3	Interdata Model 4	IBM 1130	IBM 1800	Lockheed Electronics MAC-16	Raytheon 703	Raytheon 706	Scientific Control Corp. 4700	Scientific Data Systems Sigma2	Systems Engineering Laboratories 810A	Systems Engineering Laboratories 810B
MEMORY
Memory cycle time (µs)	0.96	0.975/1.75	0.980/1.5	0.980/1.5	2.2/3.6	2/4	1	1.75	0.9	0.920	0.9	1.75	.756
Memory word length (bits)	16	16	16	16	16	16	16	16	16	16	16	16	16
Minimum memory size (words)	4K	4K	2K	2K	4K	4K	4K	4K	4K	4K	8K	4K	8K
Memory increment size (words)	4K	4K	2K,4K	2K,4K	4K	4K	4K	4K	4K	4K	4K	4K	8K
Maximum memory size (words)	32K	32K	32K	32K	32K	32K	65K	32K	32K	65K	65K	32K	32K
Parity check (std.,opt.,no)	opt.	opt.	opt.	opt.	std.	std.	opt.	no	opt.	opt.	std.	opt.	std.
Memory protect (std.,opt.,no)	opt.	opt.	opt.	opt.	no	std.	opt.	no	opt.	opt.	opt.	opt.	opt.
CPU FEATURES
Instruction word length(s)	16/32	16/32	16/32	16/32	16/32	16/32	16	16	16	16/32	16	16	16
Number of accumulators (or general purpose registers that can be used as accumulators)	2	8	16	16	2	2	1	1	1	3	2	2	2
Number of hardware registers (not including index registers)	5	16	18	33	7	7	6	6	6	10	6	2	2
Number of index registers (indicate whether they are hardware, memory or other techniques)	1 hardware	6 hardware	15	15	3 memory	3 hardware	4 memory	1 hardware	1 hardware	1 hardware	2 hardware	1 hardware	2 hardware
How many bits for operation code	5	8	8	8	5	5	4	4	4	4/9	4	4	4
How many bits for address modes	2	2	2	2	2	2	3	1	1	3	4	2	2
Number of addressing modes	4	4	3	3	3	3	8	2	2	5	16	4	4
How many bits for address	9/14	6/16	6/16	6/16	9/16	9/16	9	11	11	9/16	8	10	10
In this machine one can directly address ____ words	1,024	32,768	32,768	32,768	32,768	32,768	512	32,768	32,768	32,768	1,024	1,024	1,024
in ____ µs	0.96	0.975/1.75	0.98/1.5	0.98/1.5	2.2	2.0	2.0	3.5	1.8	0.92	0.9	1.75	0.750
and indirectly address ____ words	32K	32K	—	—	32K	32K	65K	—	—	65K	65K	32K	32K
in ____ µs	1.92	1.95/3.5	—	—	2.2	2.0	3.0	—	—	1.84	1.8	3.5	1.5
Indirect addressing (multi-level, single-level, no)	Multi- level	Multi- level	no	no	Single- level	Single- level	Multi- level	no	no	Single- level	Single- level	Multi- level	Multi- level
ARITHMETIC OPERATIONS
Store time for full word (µs)	1.92	1.95/3.5	6.0	6.0	4.64	4.25	2.0	3.5	1.8	1.84	2.2	3.5	1.50
Add time for full word (µs)	1.92	1.95/3.5	3.2	3.2	4.88	4.25	2.0	3.5	1.8	1.84	2.2	3.5	1.50
Fixed-point hardware mult/divide (std.,opt.,no)	opt.	opt.	opt.	opt.	std.	std.	opt.	opt.	opt.	opt.	opt.	std.	std.
Multiply time hardware (µs)	5.28	10	23	23	15.67	15.25	9	12.25- 17.5	6.3 to 9.0	6.44	10.3	7	4.5
Divide time hardware (µs)	10.00	25	38	38	46.36	42.75	12	24.0	9.0	6.90	10.8	10.5	8.25
Multiply time software (µs)	154.6	50	900	900	—	—	150	147	75	—	103	—	—
Divide time software (µs)	220.8	100	1,020	1,020	—	—	300	299.25	154	—	297	—	—
I/O CAPABILITY
Data path width (bits)	16	16	8	8	16	16	16	16	16	8/16	8	16	16
Direct memory access (DMA) channel (std.,opt.,no)	opt.	opt.	opt.	opt.	std.	std.	opt.	opt.	opt.	opt.	std.	opt.	opt.
Maximum DMA word transfer rate	1.0 MHZ	1.0 MHZ	450 KHZ	450 KHZ	460 KHZ	500 KHZ	800 KHZ	571 KHZ	1.1 MHZ	1.1 MHZ	200 KHZ	572 KHZ	1.33 MHZ
Number of external priority interrupt levels provided in basic system	2	8	2	2	6	12	4	1	1	2	2	3	3
Maximum number of external interrupts	48	256	255	255	96	384	64	16	16	256	132	96	96
Response time (µs) including time to save registers ofinterrupted program and initiate new program execution	9.6	5.0	9.0- 16.0	9.0- 16.0	100.0	100.0	6.0	5.25	2.7	7.36	6.0	10.5	6.75
OTHER FEATURES
Power failure protect (std., opt., no)	std.	opt.	opt.	opt.	no	opt.	opt.	opt.	opt.	std.	opt.	std.	std.
Automatic restart after power failure (std.,opt.,no)	opt.	opt.	opt.	opt.	no	opt.	opt.	std.	std.	opt.	opt.	opt.	opt.
Real-time clock or internal timer (std., opt., no)	opt.	opt.	opt.	opt.	no	std.	opt.	opt.	opt.	opt.	opt.	opt.	opt.
SOFTWARE
Assembler (1 pass, 2 pass, both)	both	1 pass	both	both	2 pass	2 pass	2 pass	both	both	2 pass	2 pass	2 pass	2 pass
Relocatable assembler (yes, no)	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Minimum core size necessary to use this relocatable assembler	N/A	4K	4K	4K	4K	4K	4K	8K	8K	4K	8K	8K	8K
Macro assembler capability	no	yes	no	no	yes	yes	yes	yes	yes	yes	yes	yes	yes
Compilers available (specify explicitly, e.g., Fortran II, IV, ASA Basic Fortran, etc.)	Fortran IV	Fortran IV	none	none	ASA Basic Extended Fortran	ASA Basic Extended Fortran	ASA Standard Fortran IV	FortranIV Fortran ASA Basic	FortranIV Fortran ASA Basic	FortranIV Fortran ASA Basic	FortranIV Fortran ASA Basic	Fortran IV	Fortran IV
Conversational compilers (e.g., FOCAL, BASIC, CAL, etc.)	FortranIV BASIC	none	Fortran	Fortran	APL	none	none	none	none	none	none	none	none
Real-time executive monitor available (yes, no)	yes	yes	no	no	no	yes	no	yes	yes	yes	yes	no	yes
Disc operating system available (yes, no)	yes	no	no	no	yes	yes	no	yes	yes	yes	yes	yes	yes
BASIC MAINFRAME COSTS
Basic system price with 4K words including power supplies	$23,800	$9,950	$10,800	$13,800	$25,880	$47,300	$11,950	$15,000	$19,000	$14,800	N/A	$18,000	N/A
Price of ASR-33 Teletype (if not already included in Basic System Price)	$1,200	$2,500	$1,900	$1,900	Included	$2,930	Included	Included	Included	$1,700	—	Included	—
Total system price, including ASR-33 Teletype and CPU	$25,000	$12,450	$12,700	$15,700	$25,880	$50,230	$11,950	$15,000	$19,000	$16,500	—	$18,000	—
Basic system price with 8K words including adequate power supplies, enclosure, control panel	$31,800	$15,950	$17,700	$20,700	$34,040	$55,700	$15,900	$23,000	$24,600	$22,300	$34,000	$23,000	$30,000
Price of ASR-33 Teletype (if not already included in Basic System Price)	Included	$1,200	$2,500	$1,900	$1,900	Included	$2,930	Included	Included	$1,700 (ASR-35)	Included	Included	Included
Total system price, including ASR-33 Teletype and CPU	$33,000	$18,450	$19,600	$22,600	$34,030	$58,630	$15,900	$23,000	$24,600	$24,000	$41,000 (ASR-35)	$23,000	$30,000
PERIPHERALS AVAILABLE
Magnetic tape available (yes, no)	yes	yes	yes	yes	no	yes	yes	yes	yes	yes	yes	yes	yes
Approximate price for operational unit (including controller, computer options necessary, etc.)	$23,355 to $35,430	$18,000	$9,900	$9,900	—	$15,620	N/A	$10,500 to $28,000	$10,500 to $28,000	$24,000	$25,000	$24,000	$24,000
Mass storage device available (yes, no)	yes	N/A	yes	yes	yes	yes	no	yes	yes	yes	yes	yes	yes
Approximate price of operational unit (including controller, computer options necessary, etc.)	$22,300 to $36,000	—	$17,400	$17,400	Included	$13,500	—	$21,500	$21,500	$19,500	$26,000	$30,000	$30,000
High speed paper tape reader (yes, no)	yes	yes	yes	yes	yes	no	yes	yes	yes	yes	yes	yes	yes
Speed (char/sec)	300	300	300	300	60	—	300	300	300	300	300	300	300
Approximate price of operational unit	$3,800	$2,500	$2,500	$2,500	$1,750	—	N/A	$3,300	$3,000	$3,000	Combination $12,000	$4,000	$4,000
High speed paper tape punch (yes, no)	yes	yes	yes	yes	no	no	yes	yes	yes	yes	yes	yes	yes
Speed (char/sec)	110	50	60	60	—	—	60	110	110	120	120	100	100
Approximate price of operational unit	$4,500	$3,000	$3,800	$3,800	—	—	N/A	$4,200	$4,000	$4,000	Combination $12,000	$4,000	$4,000
NOTE: N/A = Not Announced—or Not Available

MANUFACTURER / MODEL NUMBER	Tempo Computers Inc. Tempo 1	Varian 620i	Digital Equipment Corp. LINC-8	Digital Equipment Corp. PDP-8/1	Digital Equipment Corp. PDP-8/L	General Automation SPC-12	Motorola MDP-1000	Sears Computers Inc. Micro Line	Business Information Technology 480/482	Computer Automation PDC-808	Data Technology DT-1600	General Automation SPC-8	Varian 520i
MEMORY
Memory cycle time (µs)	0.9	1.8	1.5	1.5	1.6	2.0	2.16	1	3.0	8.0	8.0	2.0	1.5
Memory word length (bits)	16	16/18	12	12	12	8	8	12	8	8	8	8	8
Minimum memory size (words)	4K	4K	4K	4K	4K	4K	4K	4K	4K	4K	4K	4K	4K
Memory increment size (words)	4K	4K	4K	4K	4K	4K	4K	4K	1K,2K,4K	4K	4K	4K	4K
Maximum memory size (words)	65K	32K	32K	32K	8K	16K	16K	32K	65K	16K	16K	8K	32K
Parity check (std.,opt.,no)	opt.	opt.	opt.	opt.	opt.	opt.	no	opt.	opt.	no	no	opt.	opt.
Memory protect (std.,opt.,no)	opt.	opt.	no	std.	std.	no	no	no	no	no	opt.	no	std.
CPU FEATURES
Instruction word length(s)	16/32	16/32	12	12/24	12/24	8,12,16	12	12	8/16	8/16	8/16	8,12,16	8/16
Number of accumulators (or general purpose registers that can be used as accumulators)	2	2	2	1	1	4	6	1	1	1	1	2	7
Number of hardware registers (not including index registers)	7	6	10	4	4	8	9	12	8	8	8	6	7
Number of index registers (indicate whether they are hardware, memory or other techniques)	1 hardware	2 hardware	8 memory	8 memory	8 memory	3 hardware	3 hardware	16 memory	none	none	none	1 hardware	1 hardware
How many bits for operation code	4	4	2,3,7	3	3	8	8	7	8	6	4	8,12	3
How many bits for address modes	3	3	3	1	1	3	3	5	none	2	2	3	3
Number of addressing modes	8	4	6	2	2	5	6	4	1	4	2	4	5
How many bits for address	9/16	9/11	12,10,8,4	8/15	8/13	12	12	12	8/16	8	8	12	15
In this machine one can directly address ____ words	512	2,048	1,024	256	256	4,096	4,096	1,024	256	512	512	4,096	4,096
in ____ µs	0.9	3.6	3.0	1.9	1.6	4.2	4.32	2.0	3.0	24.0	16.0	4.2	2.5
and indirectly address ____ words	65K	32K	4K	32K	8K	4K	4K	1K	65K	16K	16K	4K	32K
in ____ µs	1.8	5.4	4.5	3.0	3.2	6.3	10.8	3.0	23.25	40.0	32.0	6.3	5.25
Indirect addressing (multi-level, single-level, no)	Multi- level	Multi- level	Single- level	Single- level	Single- level	Single- level	Single- level	Single- level	Single- level	Multi- level	Multi- level	Single- level	Multi- level
ARITHMETIC OPERATIONS
Store time for full word (µs)	1.8	3.6	3.0	3.0	3.2	4.2	4.32	2.0	14.25	24.0	24.0	4.2	4.5
Add time for full word (µs)	1.8	3.6	3.0	3.0	3.2	4.2	4.32	2.0	14.25	24.0	24.0	4.2	4.5
Fixed-point hardware mult/divide (std., opt., no)	opt.	opt.	mult.-std. div.-opt.	opt.	no	no	no	mult.-std. div.-opt.	opt.	no	no	no	no
Multiply time hardware (µs)	7	10	34	N/A	—	—	—	14	N/A	—	—	—	—
Divide time hardware (µs)	9	10-14	37	N/A	—	—	—	—	N/A	—	—	—	—
Multiply time software (µs)	—	200	—	360	360	N/A	N/A	300	N/A	1,100	1,200	400	N/A
Divide time software (µs)	—	200	460	460	460	N/A	N/A	1700	N/A	1,880	1,500	500	N/A
I/O CAPABILITY
Data path width (bits)	8/16	16/18	12	12	12	8/12	12	12	8	8	8	8/12	8/16
Direct memory access (DMA) channel (std., opt., no)	opt.	opt.	std.	opt.	opt.	opt.	opt.	std.	std.	no	no	opt.	opt.
Maximum DMA word transfer rate	800 KHZ	200 KHZ	666 KHZ	666 KHZ	625 KHZ	430 KHZ	430 KHZ	1.0 MHZ	250 KHZ	—	—	430 KHZ	660 KHZ
Number of external priority interrupt levels provided in basic system	4	none	1	1	1	2	1	1	1	3	3	2	3
Maximum number of external interrupts	256	64	1	64	64	256	64	1	1	64	32	256	11
Response time (µs) including time to save registers ofinterrupted program and initiate new program execution	3.6	N/A	14.0	14.0	18.6	20.0	N/A	8.0	50.0	88.0	32.0	20.0	1.5
OTHER FEATURES
Power failure protect (std., opt., no)	std.	opt.	opt.	opt.	opt.	opt.	opt.	std.	opt.	opt.	opt.	opt.	opt.
Automatic restart after power failure (std., opt., no)	opt.	opt.	opt.	opt.	opt.	opt.	opt.	opt.	opt.	opt.	opt.	opt.	opt.
Real-time clock or internal timer (std., opt., no)	opt.	opt.	opt.	opt.	opt.	std.	std.	opt.	opt.	opt.	opt.	std.	opt.
SOFTWARE
Assembler (1 pass, 2 pass, both)	both	2 pass	both	both	both	1 pass	2 pass	2 pass	3 pass	2 pass	2 pass	1 pass	2 pass
Relocatable assembler (yes, no)	yes	no	yes	yes	yes	yes	yes	no	no	no	yes	yes	yes
Minimum core size necessary to use this relocatable assembler	4K	—	8K	8K	8K	4K	4K	—	—	—	4K	4K	4K
Macro assembler capability	yes	no	yes	yes	yes	no	yes	no	no	no	no	no	no
Compilers available (specify explicitly, e.g., Fortran II, IV, ASA Basic Fortran, etc.)	ASA Basic Fortran	Fortran II	Fortran II Algol	Fortran II Algol	Fortran II Algol	none	none	none	ASA Basic Fortran	none	none	none	none
Conversational compilers (e.g., FOCAL, BASIC, CAL, etc.)	none	none	BASIC FOCAL	BASIC FOCAL	BASIC FOCAL LAP-6	no	no	no	no	no	no	no	no
Real-time executive monitor available (yes, no)	no	no	no	no	no	yes	yes	yes	yes	no	no	yes	no
Disc operating system available (yes, no)	no	no	yes	yes	yes	no	no	no	no	no	yes	no	no
BASIC MAINFRAME COSTS
Basic system price with 4K words including power supplies	$15,000	$12,100	$38,000	$12,800	$8,500	$6,400	$8,500	$46,500[E]	$9,310	$6,600	$6,600	$6,400	$7,500
Price of ASR-33 Teletype (if not already included in Basic System Price)	Included	$1,800	Included	Included	Included	$1,100	$1,200	Included	Included	$1,500	$1,900	$1,100	$1,400
Total system price, including ASR-33 Teletype and CPU	$15,000	$13,900	$38,500	$12,800	$8,500	$7,500	$9,700	$46,500[E]	$9,310	$8,100	$8,500	$7,500	$8,900
Basic system price with 8K words including adequate power supplies, enclosure, control panel	$19,000	$18,500	$47,500	$16,300	$13,200	$9,600	$11,500	$56,500[E]	$11,250	$8,800	$8,800	$9,600	$10,000
Price of ASR-33 Teletype (if not already included in Basic System Price)	Included	$1,800	Included	Included	Included	$1,100	$1,200	Included	Included	$1,500	$1,900	$1,100	$1,400
Total system price, including ASR-33 Teletype and CPU	$19,000	$20,300	$47,500	$16,300	$13,200	$10,700	$12,700	$56,500[E]	$11,250	$10,300	$10,700	$10,700	$11,400
PERIPHERALS AVAILABLE
Magnetic tape available (yes, no)	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Approximate price for operational unit (including controller, computer options necessary, etc.)	$12,000	N/A	$24,700	$24,700	$24,700	$11,000	N/A	N/A	$18,700 to $22,500	$5,700 to $10,000	$9,950	$9,800	$9,000
Mass storage device available (yes, no)	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Approximate price of operational unit (including controller, computer options necessary, etc.)	N/A	N/A	$6,000	$8,700 to $15,700	$8,700 to $15,700	$6,000 to $15,000	N/A	N/A	$7,390	$16,500 to $9,950	$10,000	$6,000 to $15,000	N/A
High speed paper tape reader (yes, no)	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Speed (char/sec)	300	300	300	300	300	300	300	300	300	300	300	300	300
Approximate price of operational unit	N/A	N/A	$2,500	$2,000	$2,000	$3,000	N/A	N/A	$2,300	$2,200	$3,300	$3,000	$2,900
High speed paper tape punch (yes, no)	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Speed (char/sec)	60/120	60/120	50	50	50	120	120	120	60	60	60	60/120	60
Approximate price of operational unit	N/A	N/A	$2,000	$2,000	$2,000	$4,000	N/A	N/A	$3,000	$3,300	$2,900	$3,600- $4,000	$3,300
NOTE: N/A = Not Announced—or Not Available
[E] Price includes 2 mag tapes and crt with keyboard

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[Appendix B]
BACKGROUND INFORMATION FOR CHAPTER 3, A REVIEW AND ANALYSIS OF EXPENDITURES