History of ComputerAbacus(500 B.C.) started in China - was probably that original mechanical counting device.ABACUS

History of ComputerPascaline(1642) by Blaise Pascal - used gear-driven counting wheels to do addition. Pascaline

History of ComputerJacquard Weaving Loom(1805) by Joseph-Marie Jacquard - a device which is still used at present, is controlled by cards in which holes are strategically punched.

Jacquard Weaving Loom

History of ComputerDifference Engine(1822-33) by Charles Babbage - was capable of computing mathematical tables. Unfortunately, he failed to complete his invention.

Difference Engine

History of ComputerAnalytical Engine (1833) by Charles Babbage - an engine that could add, subtract, multiply, and divide in automatic sequence at a rate of 60 calculations a minute.Analytical Engine

Punch-card Tabulating Machine(1884) by Dr. Herman Hollerith it was used by the Bureau of Census in completing a 10-year census in 3 years.Punch-card Tabulating Machine

International Business Machine/IBM(1924) one of the most recognizable institution in the field of computers.International Business Machine

Electromechanical Accounting Machine/EAM(1920-1950) it was dubbed as the EAM era. It was used to perform a particular operation by insertion of a prewired control panel.Electromechanical Accounting Machine

Atanasoff-Berry Computer/ABC(1942) by Dr. John V. Atanasoff/Clifford E. Berry first electronic digital computer.Atanasoff-Berry Computer

MARK I(1944) by Howard Aiken it was the first electromechanical computer.MARK I

1st Generation of Computer (Vacuum Tube-based Computer)1. Electronic Numerical Integrator and Computer/ ENIAC(1946) by John W. Mauchly/John Prespert Eckert Jr. it was commissioned by the U.S. Army for military purposes that was cost $3 Million. ENIAC was a special-purpose computer.Vacuum Tube consisting of a glass or steel vacuum envelope and two or more electrodes between which electrons can move freelyENIAC

1st Generation of Computer (Vacuum Tube-based Computer)2. Universal Automatic Computer/UNIVAC I(1951) by John W. Mauchly/John Prespert Eckert Jr. first functional general-purpose computer. It was used by the U.S. Bureau of Census to tabulateCensus Statistics and to predict the outcome of the 1952 U.S. Presidential Elections. UNIVAC I

2nd Generation of Computer (Transistor-based Computer)1. Honeywell 400(later part 1950s early part 1960s) - became a popular transistor-based computer. Its mainframe computer, were very expensive for small and medium-scale enterprises to afford during that time. Transistor/Transfer Resistor is a solid-state circuit components usually composed of three leads.Honeywell 400

2nd Generation of Computer (Transistor-based Computer)2. PDP-8(1963) by Digital Company - it is now regarded as the first successful minicomputer.PDP-8

3rd Generation of Computer (Integrated Circuit-based Computer) 1. SYSTEM/360(April 7, 1964) by International Business Machines Corporation (IBM) - the first mainframe computer that used interchangeable software and equipment.Integrated Circuit/IC a small chunk if silicon semiconductor material that contains hundreds of thousands of millions of electronics device that is placed in an area the size of a postage stamp. Built by Jack St. Clair Kilby. SYSTEM/360

4th Generation of Computer (Advancement in IC Technology)1. Altair 8800(April 1975) by Micro Instrumentation Telemetry Systems of New Mexico is considered as the first modern PC. It had no monitor and no keyboard, just toggle switches and blinking lights.Intel 4004 it was first microprocessor by Intel Corporation. Altair 8800

4th Generation of Computer (Advancement in IC Technology)2. APPLE I(1976) by Steve Jobs/Steve Wozniak one of the most popular brand of computer was created not in a sophisticated research laboratory but in a garage. It was followed by an improved version that was the APPLE II.APPLE I

3. TRS-80(1977) by Tandy/Radio Shack it became one of the most popular computer during the late 1970s.4th Generation of Computer (Advancement in IC Technology)TRS-80

4. Osborne I(1980) by Adam Osborne it was small enough to fit under an airline seat and it was equipped with all the needed software. It was the ancestor of modern-day laptops and palmtops.4th Generation of Computer (Advancement in IC Technology)Osborne I

5. Apples Newton(1993) by Apple Computer, Inc. the first PDA/Personal Digital Assistant.4th Generation of Computer (Advancement in IC Technology)Apples Newton

5th Generation of Computer (Beyond/Future)1. Artificial Intelligence/AI a system that behave intelligently. Ability to reason through a problem through its logical conclusion. Artificial Intelligence

5th Generation of Computer (Beyond/Future)2. Expert System known as Knowledge-Based System, which captures and uses the knowledge of an expert for solving a problem experienced in a business.Expert System

5th Generation of Computer (Beyond/Future)3. Decision Support System/DSS emphasizes the support in decision-making in all phases, the actual decision is still exclusive to the decision-maker. It is experimental in nature, where the user tries different inputs to see their effects.Decision Support System

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Assignment:What are the 3 major components of computer system? What are the 3 groups of hardware components?Give at least 5 examples of hardware components.