History and Generations of Computers.

Von Neumann architecture links program and data with memory. For exams connect it with the stored program concept.

Harvard architecture may use separate arrangements for instructions and data. For exams identify architecture by memory arrangement.

Von Neumann bottleneck is linked with the limit between processor and memory. For exams remember it as a performance limitation.

Separate instruction and data paths can improve efficiency in some systems. For exams connect the advantage with memory arrangement.

Jacquard Loom gave early inspiration for card based control. For exams see it as a historical clue for program control.

In the Analytical Engine cards were linked with input and instruction ideas. For exams do not limit punch cards only to census.

The mill was like the calculating part. For exams connect mill with processor and store with memory like ideas.

Store had the idea of holding values, so it resembles memory. For exams match Babbage's terms with modern components.

Difference Engine was linked with mathematical tables. For exams remember the different aims of Babbage's two machines.

Ada Lovelace considered instructions related to the Analytical Engine. For exams link her with early programming, not microprocessors.

Hollerith machine is famous for processing census data using punch cards. In exams identify the census clue quickly.

Hollerith's tabulating machine influenced the data processing industry. For exams connect IBM roots with tabulating.

Zuse Z3 is part of early computer history. For exams separate old program controlled machines from modern PCs.

ABC is important in digital electronic computing but was not a general purpose PC. For exams distinguish importance and use limit.

Colossus was a special purpose computer linked with wartime code breaking. For exams keep it separate from normal PCs.

ENIAC used vacuum tube technology and was a large electronic computer. For exams remember first generation clues.

Manchester Baby showed the direction of running a program stored in memory. For exams identify the importance of the idea.

Both appear in stored program computer history. For exams connect them with the direction of von Neumann ideas.

EDSAC was an early stored program computer linked with Cambridge and Britain. For exams remember both place and concept.

UNIVAC I was linked with business and government data work. For exams identify commercial computing clues.

First generation was linked with vacuum tubes and difficult machine language. For exams treat large size and high heat as clues.

Second generation is linked with transistors and was more reliable than first generation. For exams keep the transistor clue strong.

Third generation is identified by integrated circuits. In exams also notice clues of operating system development.

Microprocessors promoted small and affordable computers. For exams keep fourth generation and PC revolution together.

Fifth generation is linked with intelligent systems and AI. For exams keep AI clues separate from microprocessor clues.