Time line TNO-FELs' main computer systems

Overview of the most important computer systems that were in use
at TNO-FEL up to 1994

Period	System	Memory	Disks	Mhz (cycle time)	MFLOPs (*) (**)	MIPs	Remarks
< 1964	Madas	-	-	-	-	-	Matrix inversion 24*24: 5 man hours
1964 - 1970	Elliot/ NCR 803B	8 KW * 39 bits (39 KB)		(576 µsec)	?	?
1971 - 1977	Ferranti FM1600B	16K (24 bits) (later 32K)	none	(1.33 µsec)	?	?	(manufacturer description)
1970 - 4/74	CDC 3200	32 KW * 24 bits (96 KB)		800 kHz (1.25 µsec)	?	?
5/74 - 4/77 4/77 - 8/78	CDC 6400	64 KW * 60 bits (=480 KB) 96 KW * 60 bits	2*100 MB	10 MHz	0.12	0.7	Memory expansion
8/78 - 9/ 83	CYBER 74	131 KW * 60 bits (=960 KB)	5 * 414 MB 1981: 7 stuks	10 MHz (100 nsec)	0.48	2.5	parallel CPU's 1* 566/800/1600 bpi tape unit 1* 1600/6250 bpi tape unit 1* 7 track tape unit
8/79 - 2/88	PDP 11/60	192 KW * 16 bits (=384 MB)	4* 5 MB		0.04	0.3	Mips and Mflops (estimated)
	VAX 11/750	8 MB (32 bits) 800 ns write 640 ns read	2* 456 MB 1* 121 MB	320 ns microcontrol store time	0.06	0.7	Graphics VAX (VG) Photo of 11/750 and original DEC announcement
84 - 7/89	VAX 11/750	6 MB (32 bits) 800 ns write 640 ns read	1* 121 MB 1* 456 MB	320 ns	0.12	0.7	General purpose VAX (VC) with FPA Photo of 11/750
85 - 6/87	VAX 11/750	8 MB (32 bits) 800 ns write 640 ns read	1* 456 MB	320 ns	0.06	0.7	VAX for FEL's administration (VA) with FPA Photo of 11/750
9/83 - 9/86	CYBER 835	512 KW * 64 bits (= 4 MB)	3* 1.2 GB (6 bit) 1* 237 MB (6 bit)	17 MHz (56 nsec)	0.47	2.5	(manufacturer description)
6/87 - 8/90	VAX 8350	28 MB	1* 640 MB 2* 456 MB 1* 121 MB		0.18	1.9	VAX for FEL administration (VA)
9/86 - 3/90	CYBER 840	32 MB (64 bits) 384 ns	4* 1.2 GB (6 bit) 1* 2.4 GB (8 bit)		0.99	3.5	(840A specifications)
7/88- 12/92 6/90 - 12/90	CYBER 930-11 930-31	32 MB (64 bits) 400 ns	2* 414 MB 4* 414 MB		0.37 0.58	1.7 3.3	(CDC 930 specifications)
2/89 - 5/89	ETA10-P	12 MW * 64 bits (96 MB)	4* Hitachi 1.0 GB disks	42 MHz (24 nsec)	146.00	44.8	(ETA10 specifications)
2/89 - 11/93	VAX 3500	16 MB	300 MB	30 MHz	0.40	2.9
7/89 - 8/90 xx 8/90 -	VAX 6310 VAX 6410	32 MB 64 MB		60 ns 36 MHz/ 28 ns cycle	0.54 1.50	3.8 7.0	General purpose VAX 6310 photo and specifications
8/90 - 7/95	VAX 6410	64 MB	2* 1.2 GB	36 MHz/ 28 ns cycle	1.50	7.0	Administratieve VAX
11/89 - 1990	CONVEX C220	256 MB	4* 1 GB	42 MHz (24 nsec)	87.00	48	2 CPU’s, 50 Mflops piek disk striping
11/90 - 11/94	CONVEX C230	256 MB	6* 1 GB	42 MHz (24 nsec)	128.00	72	3 CPU’s, 50 Mflops peak 4 disk controllers; striping
7/90 -	CDC 4380	64 MB	10* 1 GB	25 MHz	4.00	20	(CDC4380 specifications)
2/95-	SUN 1000	132 MB	20* 1.05 GB	50 MHz	53.2	135.5	(MFLOPs and MIP’s/CPU)

(*) To compare: a 60 MHz Intel Pentium has a MFlops rating of 5.4 MFlops.
(**) click for more information on CPU performances.