Vacuum tubes were first replaced by transistors, and later by integrated circuits.
First Generation (1940-1956) Everything started with vacuum tubes. These were widely used in the first computer systems for circuitry, while magnetic drums were used for memory. Second Generation (1956-1963) Next, there was the introduction of transistors, which came in to replace vacuum tubes. ... Third Generation (1964-1971) Third-generation computers were where we saw the introduction of integrated circuits (IC), which are still in use today. Fourth Generation (1971-2010) In the fourth generation of computers, the invention of the microprocessor (commonly known as CPU) helped to get computers to the desk and, later, lap-size that we ... Fifth Generation (Present Day) Although we are still using technology from the fourth generation of information technology, we are now going into a new age: the fifth generation.
It is Moor's reference to the ignorance of a society to the capabilities of technology. The people left to write policy for oversight are not literate in technology, therefore a vacuum exits.
Transistors were first developed in 1947 by Bell Telephone laboratories. They replaced vacuum tubes, which were big, bulky, costly, and unreliable. Transistors are most often used to regulate the flow of an electrical current and to switch electricity on and off.
Ancient Technology's Example: 1. Egyptian Dress
Correction, this is WHAT was the greatest contribution, sorry!There could be many different answers to this question... First generation computers used Vacuum Tubes, these computers were very slow and could only handle one process at a time, they were also VERY large and expensive. Vacuum tubes were replaced by Transistors, which were smaller, cheaper, and faster, however transistors produced a lot of heat (these computers used punch cards and ran off of assembly language [Binary Code]). Third generation computers marked the use of Integrated Circuits, there were basically small transistors placed on silicone chips, making computers even smaller and efficient (in this generation we saw the first User Interfaces and use of mouses [mice??] and keyboards). We are currently in the fourth generation of computers, this generation is marked by the placement of thousands of integrated circus onto a silicone chip, making up a Microprocessor. The fifth generation is currently in development and will be based off the principals of Artificial Intelligence (computers with brains!! kind-of except not really..) and Natural Language Recondition (you talk to the computer and it knows what you're saying).So really its your call, Vacuum Tubes, Transistors, Integrated Circuits, or Microprocessors?
vacuum tubestransistorsintegrated circuits
Mostly the machines got smaller and more reliable as transistors replaced vacuum tubes.
Discrete components. Most components were the same as in first generation computers, but vacuum tubes were replaced with transistors. Operating voltages were correspondingly reduced and circuits sped up as a result.
The Second Generation Computer used transistors
vacuum tubes are the switching components in the first generation computers to process data. later they were replaced by transistors.
The integrated circuit replaced vacuum tubes in electronic devices. This improved electronic devices because the two main problems with vacuum tubes were: 1. Heat generation/ power consumption and 2. Fragility
Transistors ran cooler than Vacuum tubes.
The second generation of computers, which spanned from the late 1950s to the mid-1960s, primarily used magnetic core memory for internal storage. This type of memory allowed for faster data access compared to the vacuum tube technology of the first generation. Additionally, magnetic tapes and magnetic disks began to be used for secondary storage, enabling larger data storage capacities. Overall, the second generation marked a significant improvement in speed, reliability, and efficiency in computer memory.
First Generation (1940-1956) Vacuum Tubes Second Generation (1956-1963) Transistors Third Generation (1964-1971) Integrated Circuits Fourth Generation (1971-Present) Microprocessors Fifth Generation (Present and Beyond) Artificial Intelligence The link below has a nice explanation of the generations
* First Generation (1940-1956) - VACUUM TUBES * Second Generation (1956-1963) - TRANSISTORS * Third Generation (1964-1971) - INTEGRATED CIRCUITS * Fourth Generation (1971-Present) - MICROPROCESSORS
Alcatel Vacuum Technology was created in 1952.
Alcatel Vacuum Technology's population is 2,007.