Looking for a Tutor Near You?

Post Learning Requirement » x
Ask a Question
x

Choose Country Code

x

Direction

x

Ask a Question

x

Hire a Tutor
Kolkata

Introduction To Computer

Home > Study Notes > Introduction To Computer
Published in: Basic Computer
1,276 Views

A Brief Introduction To Computer: Definition, Uses, Generations, Types

Gargi S / Kolkata

2 years of teaching experience

Qualification: B.Tech(4th year) in Electronics and Communication

Teaches: Computer, English, Mathematics, Science

Contact this Tutor
  1. a. b. c. INTRODUCTION TO COMPUTER A computer is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem. A computer is a programmable electronic device that receives information or data in a particular form and performs a sequence of operations in accordance with a predetermined but yariable set of _procedural instructions (known as program) to produce a result in the form of information or signals. A computer is a programmable electronic device that stores and retrieves data and performs high speed logical and mathematical operations. Uses of com uter: 1. 2. 3. 4. 5. 6. 7. 8. 9. In education field: In the field of health and medicine: In engineering & scientific research: In commercial & financial application (Business): In office automation: Writers: In publishing work: In drawing, design & manufacturing field: In procedure control application: 10.1n graphics: ll.ln information and communication system: 12.1n robotics & remote sensing:
  2. 13.1n weather forecasting: 14.1n defence: 15.Recreation and Entertainment: 16.Sports (Recording Information, Analysing Movements): Generation of com uter: Generation First generation (1946-1959) Second generation (1959-1965) Example ENIAC EDVAC UNIVAC IBM-701 Hardware technology Software technology The instruction s were written in machine language. It uses only 0 and 1. Assembly language was used. It is much Advantages Only vacuum tubes were required Disadvantages IBM-650 o IBM 1620 IBM 7094 CDC 1604 CDC 3600 UNIVAC 1108 Vacuum tubes were used for circuitry Magnetic drums were used for memory The/nput were given by punched cards and paper tapes Output were displayed as printouts Transistors were used instead of vacuum tubes
  3. Third generation (1965-1971) o IBM-36 series Honeywe 1-6000 series PDP(P" onal bata Processor IBM- 370/168 DC-316 Magnetic core technologies were used in primary memory and magnetic tapes & magnetic disks were used in secondary storage. Inputs were given by punch card Output were given by printouts IC's were used. In the beginning magnetic core memories were used. After they were replaced by semiconductor memories (RAM & ROM) Cache and virtual memories were easier than machine language. Assembly level language use specific command for specific job other than O and 1. (E.g. it N uses ADD a dition, SUB for subtraction Small scale integration and medium scale integration technology were used in CPU, I/o processors etc. High level languages
  4. introduced. (Cache memory makes the main memory appear faster than it actually is and virtual memory makes it appear larger.) were developed FORTRAN, COBOL etc. Micro programmi ng, parallel processing, multiprogr amming, multi user system were introduced Operating system software was used. It had orientation towards sophisticat ed operating systems such as database manageme nt system, multi user application , online
  5. Fourth generation (1971 onwards) DEC 10 ST AR 1000 PDP 11 CRAY- å(Super Computer CRAY-X- MP(Super Computer Large scale integration (LSI) and very large scale integration (VLSI) design were implemented. Microprocessor s were introduced in CPU. Semiconductor systems like closed loop process control, airline reservation interactive, query system, automatic industrial control were introduced in this period. Graphical user interface (GUI) was introduced c language, Unix OS was introduced Parallelism
  6. o memory chips were used as prime memory. Secondary memory was composed of hard-disk. Floppy disk, magnetic tapes were used as backup memory. For input and output more improved device were* introduced. CRT screen, laser and Inkjet printers, scanners etc. wer developed. pipelining, cache memory and virtual memory were used in better way. CRT laser & inkjet printers, scanners etc. were developed. LAN, WAN were developed Fifth generation (Yet to come) Desktop Laptop NoteBook UltraBook ChromeB 00k
  7. N/A

Need a Tutor or Coaching Class?

Post an enquiry and get instant responses from qualified and experienced tutors.

Post Requirement

Related Study Notes

Upload Study Notes

If you have your own Study Notes which you think can benefit others, please upload on LearnPick. For each approved Study Note you will get 50 Credit Points and 50 Activity Score which will increase your profile visibility.

Upload Now