PDP-11 Simulator Configuration

The PDP-11 was the most popular 16-bit minicomputer. Introduced by DEC in 1970, it remained in active production until 1996. The PDP-11 family included many processor designs (photographs courtesy of Digital Equipment Corporation):

• 1970: PDP-11/20 - first design (also PDP-11/15)
• 1972: PDP-11/45 - first design with memory extension, instruction and data space, floating point (with fast bipolar memory, PDP-11/55)
• 1972: PDP-11/05 (also PDP-11/10)
• 1972: PDP-11/40 (also PDP-11/35)
• 1975: PDP-11/04 - first single board design
• 1975: PDP-11/34
• 1975: PDP-11/70 - first design using cache memory
• 1975: LSI-11 - first LSI design (also PDP-11/03, PDT150)
• 1977: PDP-11/60
• 1979: LSI-11/23 (F11)- second LSI design, first with floating point (also PDP-11/23, PDP-11/24, Pro 350)
• 1981: PDP-11/44 - last TTL design
• 1983: LSI-11/73 (J-11) - first CMOS design, last design (also PDP-11/53, PDP-11/73, PDP-11/74, PDP-11/83, PDP-11/84, PDP-11/93, PDP-11/94, Pro 380)

Option	Description	Capacity
CPU and memory	19 models supported (Unibus and Qbus)	16KB - 4MB
CPU options	Memory management unit (MMU)
	Floating instruction set (FIS)
	Floating point processor (FPP)
	Commercial instruction set (CIS)
Console	DL11 full duplex asynchronous interface
Paper tape	PC11 paper tape reader and punch
Real time clock	KW11L real-time clock
	KW11P programmable real-time clock
Card reader	CR11/CD11 card reader
Line printer	LP11 line printer
Asynchronous interfaces	KL11/DL11 asynchronous interface	1-16 lines
Terminal multiplexor	DZ11 multiplexor	8-32 lines
	DHQ11 multiplexor	8-32 lines
Floppy Disk	RX11/RX01 single density floppy disk	256KB
	RX211/RX02 double density floppy disk	512KB
Fixed head disk	RF11 fixed head disk	256-2048KW
Moving head disk	RK11/RK05 cartridge disk	2.5MB
	RLV12/RL01-RL02 cartridge disk	5-10MB
	RK611/RK06-RK07 cartridge disk	13-26MB
	RH11-RH70/RM03, RM05 disk packs	67-256MB
	RH11-RH70/RM80 non-removable disk	124MB
	RH11-RH70/RP04 (RP05), RP06 disk packs	87-174MB
	RH11-RH70/RP07 non-removable disk	516MB
	RQDX3/RX50,RX33 floppy disks	.4-1.2MB
	RQDX3/RD51,RD52,RD53,RD54,RD31 disks	10.8-155.6MB
	RQDX3/RA60,RA71,RA72,RA73,RA81,RA82,RA90,RA92 disks	200-1960MB
DECtape	TC11/TU56 DECtape	296KB
Cassette tape	TA11/TU60 cassette tape	93KB
Magnetic tape	TM11/TE10 800bpi 9 track magnetic tape
	TS11/TSV05 1600bpi 9 track magnetic tape
	RH11-RH70/TM03/TE16,TU45,TU77 1600bpi 9 track magnetic tape
	TQK50/TK50 TMSCP magnetic tape
Network	DELQA/DEQNA Qbus Ethernet controller
	DEUNA/DELUA Unibus Ethernet controller

Updated 30-Jan-2007 by Bob Supnik (simh AT trailing-edge DOT com - anti-spam encoded)