Computer Evolution Practice Questions

Correct answer: Pascaline

The Pascaline was invented by Blaise Pascal in 1642 to perform addition and subtraction. It is considered one of the first mechanical calculators. The abacus is older but not a mechanical calculating machine in the modern sense.

Correct answer: Charles Babbage

Charles Babbage designed the Analytical Engine in the 19th century, which had features similar to modern computers such as memory and a processing unit. Although it was never completed, it laid the foundation for programmable computers. Hence, he is called the Father of the Computer.

Correct answer: Hollerith Tabulator

Herman Hollerith developed the tabulating machine that used punched cards to process census data efficiently. This innovation significantly reduced the time required for data analysis. It later contributed to the formation of IBM.

Correct answer: Vacuum tubes

First-generation computers, developed in the 1940s and 1950s, relied on vacuum tubes for processing and memory. These machines were large, consumed a lot of power, and generated significant heat. ENIAC is a well-known example.

Correct answer: ENIAC

ENIAC, completed in 1945, is widely regarded as the first general-purpose electronic digital computer. It used thousands of vacuum tubes and was primarily developed for military calculations. It marked the beginning of the electronic computing era.

Correct answer: Vacuum tube

The transistor, invented at Bell Labs in 1947, replaced bulky and inefficient vacuum tubes. Transistors were smaller, more reliable, and consumed less power. This advancement led to the development of second-generation computers.

Correct answer: Third generation

Third-generation computers, developed in the 1960s, used integrated circuits instead of individual transistors. This innovation made computers smaller, faster, and more efficient. It significantly improved processing speed and reliability.

Correct answer: Fourth generation

The fourth generation of computers began in the 1970s with the invention of the microprocessor. A microprocessor integrates the CPU onto a single chip. This led to the rise of personal computers.

Correct answer: IBM Corp.

IBM introduced the IBM PC in 1981, which became a standard for personal computers. Its open architecture allowed other manufacturers to create compatible systems. This greatly expanded the PC market.

Correct answer: None of the above

Ada Lovelace is credited with writing the first algorithm intended for Charles Babbage’s Analytical Engine. Although formal programming languages like FORTRAN came much later, her work laid the foundation for programming concepts. She is considered the first computer programmer.

Correct answer: EDVAC

EDVAC was designed based on the stored-program concept, where instructions and data are stored in memory. This architecture became the foundation of modern computers. It improved flexibility and efficiency compared to earlier machines.

Correct answer: Use of vacuum tubes

First-generation computers relied on vacuum tubes, which were bulky, unreliable, and generated excessive heat. This made them large and prone to frequent breakdowns. Their high power consumption was also a major drawback.

Correct answer: Integrated circuit

The integrated circuit enabled multiple transistors and electronic components to be embedded on a single chip. This greatly enhanced computing power while reducing size and cost. It was a major milestone in computer evolution.

Correct answer: Fifth generation

The fifth generation of computers focuses on Artificial Intelligence and advanced technologies like machine learning and natural language processing. It aims to create machines capable of intelligent decision-making. This generation emphasizes parallel processing and AI development.

Correct answer: Zuse Z3

The Z3, built by Konrad Zuse in 1941, is considered the first working programmable computer. It used electromechanical relays and binary arithmetic. It marked a significant step toward modern computing.

Correct answer: Punch cards

Punch cards were widely used in early computers for data input and storage. Each card contained holes representing data. They were used extensively in the early and mid-20th century.

Correct answer: Number of transistors on chip doubling every two years

Moore’s Law states that the number of transistors on a microchip doubles approximately every two years. This leads to increased processing power and efficiency. It has guided semiconductor industry growth for decades.

Correct answer: UNIVAC I

UNIVAC I was the first commercially produced computer in the United States. Delivered in 1951, it was used for business and government applications. It marked the beginning of commercial computing.

Correct answer: Von Neumann architecture

The Von Neumann architecture defines a computer system with a central processing unit and shared memory for data and instructions. Proposed by John von Neumann, it became the standard model for most computers. This design allows stored-program functionality.

Correct answer: VLSI and microprocessor technology

Microprocessors combined with Very Large Scale Integration (VLSI) technology enabled powerful computing components to be miniaturized. This made portable devices like laptops possible. It significantly reduced size, weight, and power consumption.