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I > IBM  > 5120   


IBM
5120

The 5120 integrated system was the last evolution of the 5100 and 5110 portable series, and the last 'heavy desktop' computer made by IBM.

The 5120 was an intermediate system between the IBM mainframes and the future 5150 PC. Actually, it was the first desktop Personal Computer made by IBM.

Basically, The 5120 technology remained the same as the 5100 model: same custom processor and same IBM typical hardware profile inspired by the mainframes technology.

The system featured a 9-inch monochrome moniteur (many 5100 users asked for a larger display) and two 8" floppy drives.

The system was sold with both APL and BASIC languages in ROM. APL allowed numerous business software written on IBM minicomputers to run on the 5120.

_______________________

Bruce Franklin specifies:
After the IBM 5120, IBM manufactured another computer in Rochester based on the Intel 8088 chip that was called the DataMaster.
The computer's performance was poor compared to the 51XX computers, and IBM did not sell many of them.
Most people attribute the "IBM Personal Computer" as the first of what we know as PC's today, however IBM's model number for the PC introduced in 1981 was the IBM 5150. It was merely a new model of the 51XX line of computers and the second model to use an Intel processor.


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Still have our IBM 5120 programed it back in 1980 as a 13 year old. It was my first experience with Basic programing. We also considered system 32 and 34 but my father settled on the 5120. I still like to turn on occasionally and pretend like it''s 1980 all over again. Also like the diagnostic switch on the monitor that lets you view the binary memory core. Have the displaywriter printer that came along with it. I seem to recall it costing about $13,000 or so. Looked at the Datamaster shortly after but we never took the leap.

kurt

          
Wednesday 29th October 2014
Kurt Zentmaier

Still have our IBM 5120 programed it back in 1980 as a 13 year old. It was my first experience with Basic programing. We also considered system 32 and 34 but my father settled on the 5120. I still like to turn on occasionally and pretend like it''s 1980 all over again. Also like the diagnostic switch on the monitor that lets you view the binary memory core. Have the displaywriter printer that came along with it. I seem to recall it costing about $13,000 or so. Looked at the Datamaster shortly after but we never took the leap.

kurt

          
Wednesday 29th October 2014
Kurt Zentmaier

OMG! I can't believe it! I programmed a whole sales system on this computer in 1991. It was already old but the company that hired me wanted to use that old thing they had in storage for who knows how long. I used its BASIC, a very limited one I must say!!
Thanks for this excellent site!

          
Tuesday 11th March 2008
Italo (UTAH)

 

NAME  5120
MANUFACTURER  IBM
TYPE  Professional Computer
ORIGIN  U.S.A.
YEAR  1980
BUILT IN LANGUAGE  APL, BASIC
KEYBOARD  Full stroke 73 keys with numeric keypad
CPU  IBM
SPEED  Unknown
RAM  64 KB
ROM  64 KB
TEXT MODES  64 chars x 16 lines
GRAPHIC MODES  None
COLORS  Monochrome
SOUND  Beeper
SIZE / WEIGHT  45 Kg.
I/O PORTS  Parallel and Serial
BUILT IN MEDIA  2 x 8'' 1.2 MB floppy drives
POWER SUPPLY  Built in power supply unit
PRICE  $13500


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