|
gptkbp:instance_of
|
gptkb:microprocessor
gptkb:computer
|
|
gptkbp:bfsLayer
|
5
|
|
gptkbp:bfsParent
|
gptkb:PDP-7
gptkb:PDP-17
gptkb:PDP-19
|
|
gptkbp:addressed
|
indexed addressing
indirect addressing
direct addressing
|
|
gptkbp:allows
|
obsolete technology
limited memory capacity
lack of modern support
limited processing speed
|
|
gptkbp:application
|
gptkb:aircraft
gptkb:military_base
data analysis
embedded systems
real-time processing
|
|
gptkbp:architectural_style
|
16-bit
18-bit
|
|
gptkbp:community
|
government agencies
academic institutions
research laboratories
corporate research departments
|
|
gptkbp:connects
|
gptkb:Unibus
multiplexed bus
address bus
data bus
|
|
gptkbp:controls
|
interrupt handling
subroutine calls
conditional branches
unconditional branches
|
|
gptkbp:cooling_system
|
air-cooled
|
|
gptkbp:data_bus_width
|
16 bits
18 bits
|
|
gptkbp:data_type
|
gptkb:musical
gptkb:character
string
floating point
|
|
gptkbp:designed_by
|
gptkb:Digital_Equipment_Corporation
|
|
gptkbp:developer
|
gptkb:Ken_Olsen
1965-1968
|
|
gptkbp:dimensions
|
19 x 24 x 30 inches
|
|
gptkbp:emulation
|
gptkb:stock_market_index
|
|
gptkbp:end_of_life
|
gptkb:1975
|
|
gptkbp:equipment
|
disk drives
printers
tape drives
terminals
|
|
gptkbp:form_factor
|
rack-mounted
|
|
gptkbp:has_programs
|
educational purposes
scientific computing
research purposes
business applications
|
|
gptkbp:historical_significance
|
early minicomputer
|
|
gptkbp:home_port
|
disk drives
printers
tape drives
terminals
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
PDP-9
|
|
gptkbp:input_output
|
parallel communication
serial and parallel ports
serial communication
|
|
gptkbp:introduced
|
gptkb:1968
|
|
gptkbp:is_compatible_with
|
PDP-8 programs
|
|
gptkbp:language
|
gptkb:FORTRAN
gptkb:LISP
Assembly language
register-based
|
|
gptkbp:language_of_instruction
|
gptkb:film_production_company
variable length
fixed length
PDP-9 instruction set
|
|
gptkbp:legacy
|
influenced later minicomputers
|
|
gptkbp:manufacturer
|
gptkb:Digital_Equipment_Corporation
|
|
gptkbp:market
|
gptkb:1968
|
|
gptkbp:market_segment
|
scientific computing
|
|
gptkbp:notable_feature
|
enhanced instruction set over PDP-8
|
|
gptkbp:notable_features
|
multiprogramming
|
|
gptkbp:notable_users
|
gptkb:NASA
|
|
gptkbp:operating_system
|
gptkb:TOPS-10
gptkb:OS/9
|
|
gptkbp:performance
|
1 MIPS
|
|
gptkbp:power_consumption
|
low power
|
|
gptkbp:power_output
|
AC power
|
|
gptkbp:predecessor
|
gptkb:PDP-8
|
|
gptkbp:processor
|
1 M Hz
|
|
gptkbp:ram
|
64 KB
up to 32 KB
core memory
byte-addressable
|
|
gptkbp:registration
|
accumulator
program counter
status register
index register
|
|
gptkbp:release_year
|
gptkb:1968
|
|
gptkbp:released_in
|
gptkb:1968
|
|
gptkbp:size
|
18 bits
|
|
gptkbp:successor
|
gptkb:PDP-10
gptkb:PDP-15
|
|
gptkbp:supports
|
batch processing
time-sharing
|
|
gptkbp:throws
|
hardware interrupts
|
|
gptkbp:type
|
gptkb:microprocessor
|
|
gptkbp:uses
|
transistors
magnetic core memory
|
|
gptkbp:weight
|
approximately 200 lbs
|