Kaypro II No Model Number: Difference between revisions

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[[File:Early kaypro II left side.jpg|600px]]
[[File:Early kaypro II left side.jpg|600px]]<br>
This early marketing photo has black numerical keys.
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[[File:KII NO MODEL NUM.jpg]]
[[File:KII NO MODEL NUM.jpg]]<br>
Notice that this machine has a white bordered power switch.  Before serial #20,000 there were many different switches used.  See [[Early power switches]] for detailed information.
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{| class="wikitable"
| Processor: || Z80, 2.5 MHz
|-
| Memory: || 64K
|-
| Disk Storage: || Two Double Density Single Sided Tandem floppy drives (195K)
|-
| Ports: || Modem/RS232C Interface, Centronics parallel printer interface
|-
| Keyboard: || Detachable full typewriter keyboard with 14 key numeric pad and 4 cursor control keys. Upper and lower case.
|}
|}


These were the first machines produced by Kaypro.  They include the "Kaycomp" Machines.
These were the first machines produced by Kaypro.  They include the "Kaycomp" Machines.


==News==
"Before production got under way June 15 ...
"Before production got under way June 15 ...
The first units were shipped under the name of Kaycomp II, but the product has been renamed Kaypro II because of the protests of a Pasadena software manufacturer with the name of K-Comp." (San Diego Evening Times, September 17, 1982)
The first units were shipped under the name of Kaycomp II, but the product has been renamed Kaypro II because of the protests of a Pasadena software manufacturer with the name of K-Comp." (San Diego Evening Times, September 17, 1982)
Line 22: Line 37:
  || This image ran in one of the local papers for the week of June 2-8, 1982 showing the assembly of the 81-110A mainboards. (The Citizen Week, A12)
  || This image ran in one of the local papers for the week of June 2-8, 1982 showing the assembly of the 81-110A mainboards. (The Citizen Week, A12)
|}
|}
==Machine Changes==
===Vertical to Horizontal Drives===
{|
|-
|
[[File:KII Front Vert Drives.jpg|400px]]
|| The original Vertical Drive arrangement.  Also the contrast knob is on the front.
|-
|
[[File:KII Front Hor Drives.jpg|400px]]
|| Early on they changed to a Horizontal Drive arrangment with the contrast knob on the rear.
|-
|
{| class="wikitable"
|-
! Vertical Drives !! Horizontal Drives
|-
| #4623 ||
|-
| #5322 ||
|-
|  || #5484
|-
| #5846 ||
|-
|  || #6059
|-
|  || #6072
|}
|}
===Power cord connectors===
{|
|-
|
[[File:KII cord Direct.jpg|400px]]
|| The original machines had the power cord coming directly out of the back of the machine near the power switch.
|-
|
[[File:KII cord adapter plate.jpg|400px]]
|| The cord was moved to a plate on the lower edge of the back.
|-
|
[[File:KII cord plug.jpg|400px]]
|| The plate was replaced with a EM noise supressing plug.  Requiring a removable cord to be used for all later Kaypro machines.
|-
|
{| class="wikitable"
|-
! Direct !! Plate
|-
| #4223 ||
|-
| #4623 ||
|-
| #5322 ||
|-
|  || #5484
|-
| #5846 ||
|-
|  || #6059
|-
|  || #6072
|-
|  || #6084
|-
|  || #7954
|}
|-
|
{| class="wikitable"
|-
! Plate !! Plug
|-
| #24500 ||
|-
| #24746 ||
|-
|  || #25977
|-
|  || #26191
|-
|  || #27007
|}
|}
===Labels===
These units have 2 labels.
{|
|-
|
[[File:KII NLS no Kaypro label.jpg|400px]]
|| This version only has Non-linear Systems listed as the brand.
|-
|
[[File:KII NLS w- kaypro label.jpg|400px]]
|| The later version as the addition of KAYPRO to the label and "Made in the U.S.A." under the serial number box.
|-
| There is a lot of back and forth between the two labels as you go through the serial numbers.
|}
===Handle Mount Color===
There are a few black handle mounts amoung the earliest machines.
{|
|-
|
[[File:KII Handle Mount Chrome.jpg|400px]]
|| An example of the standard chrome plated handle mount.
|-
|
[[File:KII Handle Mount Black.jpg|400px]]
|| The black mount is found on: #3249, #3590, and #3892
|}


Main Serial Number Range: #3309 - 56111
Main Serial Number Range: #3309 - 56111

Latest revision as of 20:35, 26 September 2025


This early marketing photo has black numerical keys.


Notice that this machine has a white bordered power switch. Before serial #20,000 there were many different switches used. See Early power switches for detailed information.

Processor: Z80, 2.5 MHz
Memory: 64K
Disk Storage: Two Double Density Single Sided Tandem floppy drives (195K)
Ports: Modem/RS232C Interface, Centronics parallel printer interface
Keyboard: Detachable full typewriter keyboard with 14 key numeric pad and 4 cursor control keys. Upper and lower case.

These were the first machines produced by Kaypro. They include the "Kaycomp" Machines.

News

"Before production got under way June 15 ... The first units were shipped under the name of Kaycomp II, but the product has been renamed Kaypro II because of the protests of a Pasadena software manufacturer with the name of K-Comp." (San Diego Evening Times, September 17, 1982)

This image ran in one of the local papers for the week of June 2-8, 1982 showing the assembly of the 81-110A mainboards. (The Citizen Week, A12)

Machine Changes

Vertical to Horizontal Drives

 The original Vertical Drive arrangement. Also the contrast knob is on the front.

Early on they changed to a Horizontal Drive arrangment with the contrast knob on the rear.
Vertical Drives Horizontal Drives
#4623
#5322
#5484
#5846
#6059
#6072

Power cord connectors

 The original machines had the power cord coming directly out of the back of the machine near the power switch.

The cord was moved to a plate on the lower edge of the back.

The plate was replaced with a EM noise supressing plug. Requiring a removable cord to be used for all later Kaypro machines.
Direct Plate
#4223
#4623
#5322
#5484
#5846
#6059
#6072
#6084
#7954
Plate Plug
#24500
#24746
#25977
#26191
#27007

Labels

These units have 2 labels.

This version only has Non-linear Systems listed as the brand.

The later version as the addition of KAYPRO to the label and "Made in the U.S.A." under the serial number box.
There is a lot of back and forth between the two labels as you go through the serial numbers.

Handle Mount Color

There are a few black handle mounts amoung the earliest machines.

An example of the standard chrome plated handle mount.

The black mount is found on: #3249, #3590, and #3892


Main Serial Number Range: #3309 - 56111 2 Additional Machines: #61029, #76302

This model used the Mainboard 81-110.

Vertical and Horizontal Drives (See Early Vertical Drives)

Various Power Switches (See Early power switches)

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