Lotus 1-2-3 1.x (DOS)

System

Lotus 1-2-3 1.x (DOS)

Lotus 1-2-3 was an early spreadsheet application available for MS-DOS. It became extremely popular in the late 1980s, displacing the former leader VisiCalc. Lotus had difficulties adapting 1-2-3 to the Windows environment, and was overtaken by Microsoft Excel. Spreadsheet functionality was also included in Lotus Symphony. Later versions were included in Lotus SmartSuite.

Read the full story here

tarlabnor

Disk 4 (Tutor) from Images\Img_unprotected folder of "Lotus 1-2-3 1.0A-star (7-1-1983) (5.25-320k) (alt) (Different Protection)" has an error on track 20 side 0 sector 1. Luckily it's absolutely the same disk as the one in archive "Lotus 1-2-3 1.0A-star (7-1-1983) (5.25-320k)", so it can be taken from there (or re-created from the KF dump)

ibmpc5150

Lotus 1-2-3 1A have just 2 versions.

1) Original Release (Without Star)
https://forum.winworldpc.com/discussion/comment/141008#Comment_141008

2) Later Release (With Star)

NetCreature

I've been looking for version 1.0 for years. 1A seems to be 99.9% of what's out there.