Generations of Computers

• How were the generations of computer classified? By the device used in memory & processor

• In how many generations a computer can be classified? 5

• A digital cellular phone belongs to which generation? 2G

• In latest generation computers, the instructions are executed______: Both sequentially and parallel

1. First Generation of Computers (1940–1956)

• The first generation lasted approximately from______: 1940 to 1956

• The first generation of computers used ______ as their main electronic component: Vacuum tubes

• The first generation computers were______: Very large and expensive

• The first generation computers used ______ for programming: Machine

• Machine language consists only of______: 0s and 1s

• Input in the first generation computers was mainly through______: Punched cards and paper tape

• Which was the most popular first generation computer? IBM 650

• What difference does the first generation computer have from other generation computers? Technological advancement

• Which is the first generation computer? EDSAC

• The main electronic component used in first generation computers was ______: Vacuum Tubes and Valves

• Which is not a feature of first generation computers? They used machine language and assembly language to program the machine

• Most of the first generation computers were______: Special purpose computers

• What language was used by first-generation computers? Machine language

• Which is not a computer of first generation? IBM 1401

• Computers built before the First Generation of computers were______: Electro-mechanical

• Which generation computers had expensive operation cost? First

• The processing speed of first generation computers was______: Milliseconds

• First generation computers used______ for memory: Magnetic drum

• The computer size was very large in______: First Generation

• Chief component of first generation computer was______: Vacuum Tubes and Valves

• Which is the first generation computer? UNIVAC

• Output in first generation computers were produced using______: Printouts

• First generation computers were unreliable due to______: Frequent vacuum tube failures

• ______ required constant maintenance: First generation computers

• First-generation computers were mainly used for______: Scientific and military calculations

• Vacuum tubes were invented by______: John Ambrose Fleming

2. Second Generation of Computers (1956–1963)

• Second generation computers were developed during______: 1956 to 1965

• The second generation computers were based on______: Transistors

• From which generation computers the printers were used? Second

• Which programming language started from second generation? Cobol

• IBM 1401 is the first computer to enter in Nepal. It belonged to______: second generation computers

• Which programming language started from second generation? FORTRAN

• Assembly language started to be used from______: Second generation computers