Which Invention Allowed Computers to Become Smaller in Size and Faster

If you are searching for which invention allowed computers to become smaller in size and shape? You are in the right place.

Various electronic components | computer hardware devices make computers smaller in size and more efficient compared to old-fashioned computers.

Some of such devices and components are mentioned below.
  • Transistors.
  • Integrated Circuit [IC].
  • Microprocessor.

These components or devices play a vital role in making computers compact in shape and size.

The invention of the transistor was a stepping stone in computer and electronic history as it revolutionized the entire computer industry.

The invention of the transistor allowed computers to become smaller in size.

The transistor is a tiny device that controls the flow of electricity through a circuit and makes it possible for electronic devices to operate at low voltages.

The invention of the transistor in 1947 was one of the most critical developments in the history of electronics.

The transistor allowed computers to become smaller, faster, and more powerful.

It enabled them to become miniaturized enough for deployment in mobile devices like smartphones and tablets.5

The tiny chip inside these devices is called a processor or Microprocessor (the name depends on size).

The role of a processor is to take information from memory chips (which store data) and process it into something useful — such as text or images on your screen.

Important Components Launched Date

#ComponentsLaunched Date
1Vacuum Tubes1915 
3Integrated Circuit1958

Which Invention Allowed Computers to Become Smaller in Size

Which Invention Allowed Computers to Become Smaller in Size

What is Transistor

Three physicists, John Bardeen, Walter Brattain, and William Shockley, developed the first transistor at AT&T Bell Labs in 1947. 

They also won a Nobel prize for their contribution in their respective fields.

The invention of transistors allowed computers to become smaller and more powerful.

A transistor is a device that allows electrical current to flow through it, but only when there’s enough voltage on both sides of the device.

Transistors are used and utilized in most electronic devices and applications in the modern world.

The transistor is a critical invention that allowed computers to become smaller and more powerful. Transistors quickly replaced Vacuum tubes due to their significant characteristics and features.

Therefore, second generations of computers used and utilized transistors in their circuitry, making them compact and more powerful than the first generations of computers.

Transistors are small electronic devices used as switches or amplifiers in electronic circuits.

They act like on/off switches when turned on but behave like variable resistors when turned off (like an LED light bulb).

Transistors allow smaller circuit boards and less space between components than previous technologies, making it possible for computers to run faster and more efficiently.

Different Types of Transistors

The transistors are divided into three different types, which are included below.
  1. Bipolar Transistors (Bipolar Junction Transistors: BJTs)
  2. Field-Effect Transistors (FETs)
  3. Insulated-Gate Bipolar Transistors (IGBTs).

What is Integrated Circuit

Jack Kilby designed and developed the Integrated Circuit [IC] on 12th September 1958.

He was an electrical engineer by profession from Texas Instruments Company.

The ICs are installed on PCB {Printed Circuit Board}, also called a circuit board.

The PCB comprises a thin sheet of non-conductive material from plastic, copper, and aluminium foil.

The PCB holds all components attached to it together on a single sheet. They are also responsible for connecting all electronic components through a circuit.

An integrated circuit is a microchip that contains various other electrical components like transistors and capacitors.

The components are connected in a way that allows them to work together synchronously with each other and the outside world.

An integrated circuit (IC) is a piece of hardware that contains multiple electronic components on a single silicon chip.

The most common types include digital and analog circuits, logic circuits, and memory devices like EEPROMs and SRAMs.

Integrated circuits [ICs] are used and utilized in Third Generations of Computer Systems.

Different Types of Integrated Circuits [ICs]

Three different types of Integrated Circuit are mentioned below.
  1. Digital IC
  2. Analog IC
  3. Mixed-signal IC

Uses of Integrated Circuits [ICs]

  1. Integrated circuits are used and utilized in almost all electronic devices.
  2. They are also installed on mobile devices.
  3. They are installed in palmtops, laptops, and desktops.
  4. ICs are compact and hence considerably reduce the size, making the devices small in shape and size.

5 Advantages of Integrated Circuits [ICs]

  1. They are small in shape and size.
  2. ICs are readily available in the market.
  3. They are lightly weighted.
  4. They consume less amount of heat and electricity.
  5. They need less space for installation.

Generations of Integrated Circuits [ICs]

  1. Small Scale Integration [SSI].
  2. Medium Scale Integration [MSI]
  3. Large Scale Integration [LSI].
  4. Very Large Scale Integration [VLSI].
  5. Ultra Large Scale Integration [ULSI].

Explain What Microprocessors are

The Microprocessor is considered the “Brain or Heart of the Computer System”. It is the essential computer device responsible for fantastic speed with almost 100% accuracy.

Ted Hoff invented the Microprocessor.

He is also considered as “Father of Microprocessor“. Intel® 4004 became the first general purpose.

The main parts of the Microprocessor are as follows.
  1. Arithmetic and Logical Unit.
  2. Control Unit.
  3. Cache Memory.

The first single-layer Microprocessor was developed and designed in 1969 by INTEL CORPORATION.

The brain behind it was three engineers, Federico Faggin, Ted Hoff, and Stan Mazo, and they named it Intel 4004 Microprocessor.

Different Types of Microprocessors

Different Types of Processor
Different Types of Processor
  1. Dual Core Processor.
  2. Triple Core Processor.
  3. Quad Core Processor.

Useful Video: Transistor

Generations of Computer Systems

#Computer GenerationsTimelineHardware
1First Generation of Computer1940-1956Vacuum Tubes
2Second Generation of Computer1956-1963Transistor
3Third Generation of Computer1964-1971Integrated Circuit (IC)
4Fourth Generation of Computer1971-1980Microprocessor
5Fifth Generation of Computer1980- Till NowArtificial Intelligence
  • First Generation of Computer (1940-1956)
  • Second Generation of Computers (1956-1963)
  • Third Generation of Computers (1964-1971)
  • Fourth Generations of Computers ( 1971-To 2000)
  • Fifth Generations of Computers (Present and Beyond)

Top Processor Companies

Related Articles

Features and Characteristics of Second Generation of Computer That Uses Transistors

  • The second-generation computer was based on transistors rather than vacuum tubes.
  • They are quite reliable and user-friendly.
  • They can use and process assemblies and high-level languages like FORTRAN and COBOL.
  • They produce fewer amounts of heat and energy.
  • As they produce heat and energy, they require Air conditioners for better cooling and performance.
  • Magnetic Tape and disks are used as secondary storage.
  • The Second Generation Computer System Uses Transistors for enhanced performance.
  • They reduced all operational time required for processing and handling tasks and jobs.

The Second Generation Computer Was Based On

The second-generation computer was based on a transistor that replaced vacuum tubes.

Frequently Asked Questions [FAQs]

Which invention allowed computers to be smaller?

The invention of the transistor revolutionized the electronic and computer industry.

What made computers small?

Transistors and Integrated Circuits.

Who Invented Transistors Used in 2nd Generation Computers

Walter Brattain, John Bardeen, and William Shockley designed and developed the transistor.

Who Invented Integrated Circuit

Jack Kilby invented the Integrated Circuit.

Which invention helped make computers much smaller and faster?

Using and utilizing Integrated circuits [IC] made computers incredibly faster and more accurate.

Which generation of computers was the largest?

The first generation of computers used huge and bulky vacuum tubes.

What were two inventions that made computers better and smaller?

Microprocessor and Operating System.

What invention helped make computers much smaller and faster?


What invention replaced vacuum tubes and allowed computers to get smaller and much faster?

Transistors replaced bulky vacuum tubes.

What invention is a smaller faster cheaper and more durable electronic device that replaced vacuum tubes and mechanical relays?


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