Question: What was the high-end model of the computer assembled using a single-level memory system ?

text: Comparison of assemblers
Other

This is a list of assemblers: computer programs that translate assembly language source code into binary programs. Some assemblers are components of a compiler system for a high level language and may have limited or no usable functionality outside of the compiler system. Some assemblers are hosted on the target processor and operating system, while other assemblers (cross-assemblers) may run under an unrelated operating system or processor. For example, assemblers for embedded systems are not usually hosted on the target system since it would not have the storage and terminal I/O to permit entry of a program from a keyboard. An assembler may have a single target processor or may have options to support multiple processor types. Very simple assemblers may lack features, such as macros, present in more powerful versions.
Assembler License Instruction set Host platform
Assembly Language for Multics ( ALM ) MIT GE-645 Honeywell 6180 GE-645 Honeywell 6180
The Macroassembler AS Free 29xxx , AVR , 65816 , ACE , F2MC-8L , F2MC-16L , HMCS400 , 6301 , 6309 , H8/300 ( H ) , H8/500 , SH7000 / SH7600 / SH7700 , HuC6280 , PPC403GA , 4004/4040 , 8008 , MCS-48 , MCS-41 , MCS-51 , MCS-251 , MCS-96/196/296 , 8080/8085 , 8086 / 80186 , i960 , CDP1802 ( A ) /1804 ( A ) /1805 ( A ) , LatticeMico8 , PIC 16C5x , PIC 16C8x , PIC 17C42 , MELPS-740 , MELPS-7700 , MELPS-4500 , M16 , M16C , 68000 ( up to 68040 ) , ColdFire , DSP56000 , DSP56300 , PowerPC 601/505 , M-Core , 6800 , 68HC11 ( K4 ) , 6805 , 68HC ( S ) 08 , 6809 , 68HC12 incl . XGATE , 68HC16 , 68RS08 , SC/MP , INS807x , COP4 , COP8 , SC14xxx , µpD7720/7725 , µpD77230 , µpD78C1x , 75K0 , 78K0 , 78K2 , 78K3 , 78K4 , V30/35 , OLMS-40 , OLMS-50 , XA , 6502 , ( W ) 65 ( S ) C02 , 65C19 , 80C382 , 80C166/167 , 2650 , 8X30x , ST6 , ST7 , ST9 , 6804 , SYM53C8xx , TMS3201x , TMS320C2x , TMS320C20x , TMS320C3x , TMS320C4x , TMS320C5x , TMS320C54x , TMS320C6x , TMS7000 , TMS9900 , TMS370xxx , MSP430 ( X ) , TLCS-900 , TLCS-90 , TLCS-870 , TLCS-47 , TLCS-9000 , TC9331 , KCPSM/KCPSM3 ( 'PicoBlaze ' ) , Z80 , Z180 , Z380 , Z8 , eZ8 , MIL STD 1750 Win32 , DOS/DPMI , DOS ( no longer maintained ) , OS/2 ( no longer maintained ) , Linux
Babbage Proprietary GEC 4000 series GEC 4000 series
COMPASS Proprietary CDC mainframe CDC mainframe
MACRO-10 Free PDP-10 PDP-10
MACRO-11 Free PDP-11 PDP-11
vasm Free Zilog Z80 , Motorola 6800 family various
GPASM GNU GPL PIC microcontroller many
MIPS Free MIPS MIPS
Symbolic Optimal Assembly Program ( SOAP ) Proprietary IBM 650 IBM 650
Technical Assembly System ( TASS ) Free IBM 650 IBM 650
Autocoder Free IBM 705 , 14xx , 1410 , 7010 , 7070 , 7072 , 7074 , 7080 various
Fortran Assembly Program ( FAP ) Free IBM 709 , 704x , 709x Fortran Monitor System , IBSYS
GCOS Macro Assembly Program ( GMAP ) Free GE-600 series , Honeywell 6000 series GCOS
Macro Assembly Program ( MAP ) Free IBM 709 , 704x , 709x IBSYS /IBJOB on 709 , 704x , 709x
Meta-Symbol Free SDS Sigma series BTM , UTS , CP-V
Symbolic Assembly Program ( SAP ) Free IBM 704 IBM 704
Symbolic Programming System ( SPS ) Free IBM 14xx , 1620 , 1710 IBM 1401 , 1440 , 1460 , 1620 , 1710
ASMB , ASBL , NSBL - Numeric op codes , used for 1900 Operating System Executive Proprietary ICL 1900 ICL 1900
GINerator mnemonic opcodes , used for GEORGE ( operating system ) Proprietary ICL 1900 ICL 1900