ND-5000 family: Difference between revisions

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The '''ND-5000''' family is the third generations system based on the [[ND-5000 family|ND-500]] architecture. It is a totally new construction both in hardware and physical layout. The [[ND-5000 CPU]] uses the same instructions as the [[ND-500 CPU]] but adds a couple of new instructions called '[[87 extensions]]', also found in the ND-500/1 and ND-500/2 CPUs.
The '''ND-5000''' family is the third generations system based on the [[ND-5000 family|ND-500]] architecture. It is a totally new construction both in hardware and physical layout. The [[ND-5000 CPU]] uses the same instructions as the [[ND-500 CPU]] but adds 25 new instructions<ref>{{ND-doc|05.009.3}}</ref> called '[[87 extensions]]', also found in the ND-500/1 and ND-500/2 CPUs.


The new ND-5000 CPU replaces 24 cards in the old ND-500 arcitecture. The single processor ND-5700 system have the same computational power as a [[ND-570]] system.
The new ND-5000 CPU replaces 24 cards in the old ND-500 arcitecture. The single processor ND-5700 system have the same computational power as a [[ND-570]] system.

Revision as of 13:33, 31 July 2009

The ND-5000 family is the third generations system based on the ND-500 architecture. It is a totally new construction both in hardware and physical layout. The ND-5000 CPU uses the same instructions as the ND-500 CPU but adds 25 new instructions[1] called '87 extensions', also found in the ND-500/1 and ND-500/2 CPUs.

The new ND-5000 CPU replaces 24 cards in the old ND-500 arcitecture. The single processor ND-5700 system have the same computational power as a ND-570 system.

The ND-5000 series of computers is able to run both SINTRAN III and NDIX, Norsk Data's version of UNIX.

Hardware implementation

The ND-5000 family systems uses a ND-100/ND-110/ND-120 CPU as I/O processor.

CPU types

The ND-5000 CPUs came in 3 types. Type 1 had two layers of cards, type 2 had three layers of cards, and type 3 had four layers of cards. Type 1 and type 2 used similar mother boards/baby modules, the difference was that a layer with instruction/data cache and the AAP (Additional Arithmetic Processor) was missing in the type 1 CPUs. The missing AAP meant that on type 1 CPUs floating point operations were performed by the microprogram[2].

System performance

The difference in performance between models was mainly done by 3 methods:

  • Select a CPU (Type 1 / Type 2 / Type 3).
  • Jumper the master clock speed to Slow (156 ns) or Normal (70 ns).
  • Disable or enable a number or performance enhancing caching features.

Different combinations of the above resulted in the different ND-5000 models. The table below illustrates this[3].

ND-5000 model differences and list of enabled functions
System CPU type Instruction cache Data cache Address cache Smart IfGo cache WICO (Write in Cache only) Master clock speed
ND-5200 1 - - - - - 70 ns
ND-5400 2 Yes - - Yes - 156 ns
ND-5500 2 Yes Yes - Yes - 156 ns
ND-5700 2 Yes Yes Yes Yes - 70 ns
ND-5800 3 Yes Yes Yes Yes Yes 70 ns

Models

The original series of ND-5000 computers came in three different models, ND-5700, ND-5800 and ND-5900. Later additions to the family were Compact models, ND-5200 Compact and ND-5700 Compact[4].

ND-5000 system comparision chart
System Relative CPU performance Memory shared (Mb) Memory local (Mb) Data cache (Kb) Instruction cache (Kb) Max disk capacity (Gb)
ND-5200 Compact
ND-5700 1 8-512 2 64 320 29
ND-5700 Compact
ND-5800 2 16-512 4 64 320 29
ND-5900 Model 2 4 16-512 4 2x64 2x320 29
ND-5900 Model 3 6 16-512 4 3x64 3x320 29
ND-5900 Model 4 8 16-512 4 4x64 4x320 29

Reference

  1. ↑ Norsk Data Document ND–05.009.3 NORD-500 REFERENCE MANUAL
  2. ↑ ND-5000 Hardware Description ND-05.020.1
  3. ↑ ND-5000 Hardware Description ND-05.020.1
  4. ↑ PRODUCT NEWS November 1987
  • NEWS March 1987, pg. 52-53, "The ND-5000 Series: Removing Hardware Limitations".
  • Norsk Data Document ND–05.009.3 NORD-500 REFERENCE MANUAL
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