Evolution of Computer A.P.Mohana priyaa Abacus Chinese invented calculating device called ABACUS Ø Also known as “SOROBAN” perform addition and Ø subtraction Wooden rack holding two horizontal wires with beads Ø strung on them. Rules memorized by the user Ø Regular arithmetic problems can be done Ø NAPIER’S DEVICE John Napier a Scottish Mathematician Ø Set of eleven animal bones later it was replaced by Ø rod Number marked on them‚they placed
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------------------------------------------------- HND Computer and Systems Development ------------------------------------------------- ASSIGNMENT ------------------------------------------------- 2012 – 13 COLLEGE | City of Westminster College | PROGRAMME | HND Computer and Systems Development | MODULE NAME & CODE | Computer Systems Unit 2 (L/601/0446) | STUDENT NAME | | ASSESSOR | Anas Ahmed | ASSIGNMENT NUMBER | ONE | | Tasks | Hand in Dates: | | Task 1 – Report | Friday 14th
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believe that computers are more a hindrance than a help in todays’s world. Others feel that they are such indispensable tools that they would not be able to live or work without them. - In what ways are computers a hindrance - What is your opinion? Nowadays we can see computers increase their popularity; however‚ using computer too much may lead to negative results. Some people believe that computers have more adverse effects than their helps while others comment that computers are necessary
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6. ABC Computer e. Herman Hollerith g. 7. ASCC Computer f. John Eckert f. 8. ENIAC g. Grace Hopper h. Howard Alken i. John Atanasoff 3. Give the acronym of the following words: 1. ENIAC – Electronic Numerical Integrator and Calculator 2. UNIVAC – Universal Automatic Computer 3. ABC – Antasoff-Berry Computer 4. SSI – Small-Scale Integrated Circuits 5. LSI – Large-Scale Integrated Circuits 6. EDVAC – Electronic Discrete Variable Automatic Computer 7. ASCC
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of components that work together to realize some objectives forms a system. Basically there are three major components in every system‚ namely input‚ processing and output. Input Output Processing Fig. 1.1: Basic System Components 2 :: Computer Applications In a system the different components are connected with each other and they are interdependent. For example‚ human body represents a complete natural system. We are also bound by many national systems such as political system‚ economic
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Definition of computer and parts of computer. 4th Week: Data and information 5th Week: Input devices & Output devices. 6th Week: Classification and uses of computer. 7th Week: Mid – Term Test. 8th Week: Revision of terms work 9th Week: Computer peripherals‚. 10-11th Week: Revision. 12-13th Week: Examination. COMPUTER SCIENCE SECOND TERM SCHEME OF WORK (JSS 1) 1ST Week Revision of first term work 2nd Week Computer parts. Hardware
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1944(Destroyed) Cost: $6500 Size: Two 6’ x 3’ x1’ Memory racks Technology: Relays Memory : 64 22-bit floating point words Program: 35mm punched film Speed : 0.5 Operations per second Application: Circuit Analysis‚ defense‚ prototype Atanasoff-Berry Computer(ABC) Inventor : John V. Atanasoff Builder : Atanasoff and Berry Operational : 1942 Cost : $ 7000 Size : 6’ x 3’ x 3’ Technology : Tubes‚ capacitors‚ cards Memory : 64 50-bit words Program : Fixed‚ Matrix arithmetic calculator Speed : 32
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Computers in Health Care In all aspects of life—home‚ work‚ socially—a basic understanding of computer operation is by and large a necessity. Even the medical field has become dependent on computers‚ both to record vital patient information‚ but also for billing‚ researching maladies‚ and prescribing medicines. This report takes a look at how and why health care professionals use computers‚ where computers are used in the health care system‚ and how all this new technology is affecting the medical
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Computer Organization & Architecture Lecture #12 Organization and Architecture Computer Architecture Those attributes of the system that are visible to a programmer. Those attributes that have a direct impact on the execution of a program. • • • • Instruction sets Data representation – number of bits used to represent data Input/Output mechanisms Memory addressing techniques Computer Organization The operational units and their interconnections that realize the architectural specifications. Those
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101ED Concept of a Computer System The Computer System Concept. A computer is more than a high-powered collection of electronic devices performing a variety of information processing chores. A computer is a system‚ an interrelated combination of components that performs the basic system functions of input‚ processing‚ output‚ storage‚ and control‚ thus providing end users with a powerful information processing tool. Understanding the computer as a computer system is vital to the effective
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