מערכות וארכיטקטורה

Babbage’s Analytical Engine as a General-Purpose Mechanical Computer Architecture

תוכן האובייקטים עצמם כתוב באנגלית ועדיין לא תורגם.

תקופה ומקור

From the 1830s; documented by Menabrea in 1842 and Lovelace in 1843, and never completed in Babbage’s lifetime

מה הוא נבנה לעשות

To compute anything a sequence of operations could express, rather than the single class of results a difference engine produces.

כיצד המנגנון פועל

The Engine separates a Store for numbers from a Mill for arithmetic. Operation cards select functions, variable cards address operands and destinations, number cards introduce constants. Control mechanisms support sequencing and, in documented designs, repetition and conditional action.

קלט

Card-controlled instructions, and constants.

טרנספורמציה

A state transition over decimal memory and an instruction position - Store and Mill exchanging values under card control.

פלט

Computed values, with iteration and conditional branching available to the programme.

מה מבוסס בראיות

מבוסס: הממצא או התיעוד נושאים זאת במישרין.

מה הוא מדגים

Store and Mill separation, instruction media, addressable variables, iteration and conditional control - direct conceptual antecedents of computer architecture. The project is historically real and materially incomplete, and the comparison to a modern machine is informative rather than an identity.

כל המנגנונים