IBM 101
| Company type | Machine |
|---|---|
| Industry | Data processing equipment |
| Founded | 1952 |
| Products | Electronic statistical machine for sorting, counting, accumulating, balancing, editing, and printing IBM punched cards |
| Parent | IBM |
The IBM 101 Electronic Statistical Machine, launched in 1952, combines the capabilities of sorting, counting, accumulating, balancing, editing, and printing summarized results from IBM cards within a unified device.
This machine was capable of sorting cards by multiple columns and executing intricate logic constrained solely by the number of relays installed. For instance, it could distribute cards containing several 3-column test scores into different compartments based on predefined score criteria.
According to A. Ross Eckler, the development of the 101 was shaped by Lawrence Wilson’s move from the Census Bureau to IBM, bringing valuable knowledge from his experience with earlier multicolumn sorters and unit counters.
Functions
Operating at a speed of 450 cards per minute, the 101 can:
- Sort IBM cards in numeric or alphabetic order
- Organize cards into designated patterns
- Validate the consistency of encoded data
- Confirm the accuracy of sorting operations
- Search for particular data combinations
- Count cards across as many as 60 categories
- Produce printed reports using one or two printers
- Print group identifiers and verification symbols for cross-checking totals
- Perform summary punching when connected to one or two summary punches
The machine’s functions are managed through a detachable control panel.
Related Equipment
Devices frequently used alongside the IBM 101 include:
Capabilities table
| Capability | 514 Repro Punch |
519 Doc Mach. |
521 Punch Unit |
523 Gang Punch |
524 Dup Punch |
526 Summ |
528 Accum Repro |
529 Punch Unit |
541 Read Punch |
542 Read Punch |
549 Ticket Conv. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Accumulating | Yes | ||||||||||
| Comparing | Yes | Yes | Yes | ||||||||
| Editing | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ||
| End Printing | Yes | ||||||||||
| Gangpunching | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |||
| Input-Output for a System |
Yes | Yes | Yes | Yes | |||||||
| Mark-Sense Punching |
Yes | Yes | |||||||||
| Reproducing | Yes | Yes | Yes | Yes | |||||||
| Summary Punching | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
IBM 524
The IBM 524, known as a Duplicating Summary Punch, can be connected in pairs to an IBM 101 to expand its data processing functions.
Additional units
- IBM 514 (Reproducing Punch)
- IBM 519 Document-Originating Machine
- IBM 521 Punch Unit
- IBM 523 Gang Summary Punch
- IBM 526 Printing Summary Punch
- IBM 528 Accumulating Reproducer
- IBM 529 Punch Unit
- IBM 541 Card Read Punch
- IBM 542 Card Read Punch
- IBM 549 Ticket Converter
Gangpunch
The term Gangpunch describes the process of copying information from a master punched card onto subsequent cards, streamlining data duplication in business operations.