---
title: "The Preparation of Programs for an Electronic Digital Computer"
authors:
  - "Maurice V. Wilkes"
  - "David J. Wheeler"
  - "Stanley Gill"
year: 1951
venue: "Addison-Wesley (EDSAC)"
arxiv: null
doi: null
source: "https://archive.org/details/programsforelect00wilk"
topics:
  - edsac
  - subroutines
  - library
  - wilkes
seed_rank: 572
seed_batch: "foundations-greats-2026-08-13"
reviewed: "2026-08-13"
pool: "languages"
relevance_score: 9
lineage: foundations-of-computing
cites:
  - title: "The Education of a Computer"
    url: "https://doi.org/10.1145/609784.609798"
    year: 1952
    arxiv: null
    doi: "10.1145/609784.609798"
see:
  - "571-the-education-of-a-computer"
---

# The Preparation of Programs for an Electronic Digital Computer

## One-sentence takeaway

Wilkes, Wheeler, and Gill document EDSAC programming and a closed subroutine library — software as a reusable, call-and-return artifact.

## Why it matters here

This is the first true programming book. Every Broadside library, plugin, and agent tool catalog inherits the closed-subroutine discipline it taught.

## Key ideas

- The EDSAC order code and initial orders (the bootstrap) are specified in enough detail to write real programs.
- Closed subroutines restore the caller; open subroutines are expanded in line. The library is organized around the former.
- Wheeler's calling sequence and the "wheel" of library tapes make relocation and linking a practiced craft.
- Numerical examples (quadrature, differential equations, tables) show a working mathematical service, not a toy.
- Addison-Wesley 1951; the 1982 Tomash/CBI reprint is the standard historical reissue.

## Caveats

## Links

- URL: https://archive.org/details/programsforelect00wilk