What were the main differences between third and fourth-generation
computers?
nrimary change did each generation bring about in th
TALO
Answers
Answer:Third Generation:-
1.They used integrated circuit (I.C) and large scale integration (LSI).
2.They were smaller in size and called as mini computer.
3.They could perform calculation in nano seconds.
4.Main memory was increased in the form of PROM and DRAM.
Fourth Generation:-
1.They used very large scale integration (VLSI) and microprocessor.
2.They were small in size and called as micro computer.
3.They could perform millions of calculations per second.
4.Main memory was increased in the form of EPROM and SRAM.
Q.-- What primary changes did each generation brought about in the development of computers?
Usage of Transistors, and in each generation the size has been reduced with increased processing speed. Vaccum tube, transistors, IC (integrated circuits) and microprocessors.
Explanation:
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Answer:
Third Generation of Computers
The main characteristics of third generation of computers (1960s-1970s)
Main electronic component – integrated circuits (ICs)
Memory – large magnetic core, magnetic tape / disk
Programming language – high level language (FORTRAN, BASIC, Pascal, COBOL, C, etc.)
Size – smaller, cheaper, and more efficient than second generation computers (they were called minicomputers).
Speed – improvement of speed and reliability (in comparison with the second generation computers).
Input / output devices – magnetic tape, keyboard, monitor, printer, etc.
Examples – IBM 360, IBM 370, PDP-11, UNIVAC 1108, etc.
Fourth Generation of Computers
The main characteristics of fourth generation of computers (1970s-present)
Main electronic component – very large-scale integration (VLSI) and microprocessor.
VLSI– thousands of transistors on a single microchip.
Memory – semiconductor memory (such as RAM, ROM, etc.)
RAM (random-access memory) – a type of data storage (memory element) used in computers that temporary stores of programs and data (volatile: its contents are lost when the computer is turned off).
ROM (read-only memory) – a type of data storage used in computers that permanently stores data and programs (non-volatile: its contents are retained even when the computer is turned off).
Programming language – high level language (Python, C#, Java, JavaScript, Rust, Kotlin, etc.).
A mix of both third- and fourth-generation languages
Size – smaller, cheaper and more efficient than third generation computers.
Speed – improvement of speed, accuracy, and reliability (in comparison with the third generation computers).
Input / output devices – keyboard, pointing devices, optical scanning, monitor, printer, etc.
Network – a group of two or more computer systems linked together.
Examples – IBM PC, STAR 1000, APPLE II, Apple Macintosh, etc.