History of Computers Pdf Download, History & Generation of Computers pdf, History of Personal Computers PDF.
| PDF Name | History of Computers Pdf Download |
| No. of Pages | 35 |
| PDF Size | 1.83 MB |
| Language | English |
| PDF Category | Education & Jobs |
| Published/Updated | December 13, 2022 |
| Source / Credits | mypdf,in |
| Uploaded By | MyPdf |
History of Computers Pdf Download
If you searching for the History of Computers Pdf Download then you are in right place.
Definition of Computer
- A computer is a programmable machine.
- A computer is a machine that manipulates data according to a list of instructions.
- A computer is any device that aids humans in performing various kinds of computations or calculations.
1. Tally Sticks
A tally stick was an ancient memory aid device to record and document numbers, quantities, or even messages.
2. Abacus
- An abacus is a mechanical device used to aid an individual in performing mathematical calculations.
- The abacus was invented in Babylonia in 2400 B.C.
- The abacus in the form we are most familiar with was first used in China in around 500 B.C.
- It used to perform basic arithmetic operations.
3. Napier’s Bones
- Invented by John Napier in 1614
- Allowed the operator to multiply, divide and calculate square and cube roots by moving the rods around and placing them in specially constructed boards.
4. ENIAC
- ENIAC stands for Electronic Numerical Integrator and Computer.
- It was the first electronic general-purpose computer
- Completed in 1946.
- Developed by John Presper Eckert and John W. Mauchl.
5. UNIVAC 1
- The UNIVAC I (UNIVersal Automatic Computer 1) was the first commercial computer.
- Designed by J. Presper Eckert and John Mauchly.
6. EDVAC
- EDVAC stands for Electronic Discrete Variable Automatic Computer
- The First Stored Program Computer
- Designed by Von Neumann in 1952.
- It has a memory to hold both a stored program as well as data.
7. The First Portable Computer
- Osborne 1 – the first portable computer.
- Released in 1981 by the Osborne Computer Corporation.
8. The First Computer Company
- The first computer company was the Electronic Controls Company.
- Founded in 1949 by J. Presper Eckert and John
Computer Generations
There are five generations of computer:
- First generation – 1946 – 1958
- Second generation – 1959 – 1964
- Third generation – 1965 – 1970
- Fourth generation – 1971 – today
- Fifth generation – Today to future
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