Historia y evolución de la computadora

Historia y Evolución de la Computadora

Definición de Computadora

• La computadora es una máquina electrónica que recibe y procesa datos para convertirlos en información útil, que luego se envía a unidades de salida para su análisis por humanos.

Componentes Físicos

• Un ordenador está compuesto por numerosos circuitos integrados y componentes auxiliares que permiten ejecutar diversas tareas rápidamente bajo el control de un programa.

Hitos Históricos en la Computación

Abaco y Primeras Herramientas

• Año 500 a.C.: Se utiliza el ábaco en civilizaciones antiguas como China y Sumeria, siendo la primera herramienta para realizar sumas y restas.

Avances Matemáticos

• Año 830: Musa al-Juarismi inventa el algoritmo, resolviendo problemas algebraicos mediante una lista ordenada de operaciones.

• Año 1614: John Napier inventa el logaritmo neperiano, simplificando cálculos de multiplicaciones y divisiones.

Máquinas Calculadoras

• Año 1620: Edmund Hunter crea la regla de cálculo, utilizada hasta la llegada de calculadoras electrónicas.

• Año 1642: Blaise Pascal inventa la pascalina, una máquina sumadora con ruedas dentadas.

Innovaciones Mecánicas y Electrónicas

Desarrollo Temprano

• Año 1801: Joseph Marie Jacquard introduce tarjetas perforadas para controlar patrones en máquinas tejedoras, precursor del uso en computadoras.

• Año 1833: Charles Babbage diseña la máquina analítica, considerada como el primer concepto de computadora mecánica aunque no se construyó debido a limitaciones tecnológicas.

Primeras Computadoras Electrónicas

• Año 1944: IBM construye Harvard Mark I, la primera computadora electro-mecánica creada en EE.UU., diseñada por Howard Aiken.

• Año 1947: Se desarrolla ENIAC, considerada la primera computadora electrónica de propósito general; ocupaba un sótano completo y utilizaba tubos de vacío.

Transistores y Segunda Generación

Avances Tecnológicos Clave

• Año 1948: Se inventa el transistor por John Bardeen et al., revolucionando las computadoras al reemplazar válvulas por transistores más eficientes.

Comercialización

History of Computing: From Early Machines to Modern PCs

Early Developments in Computing

• In 1950, IBM introduced the IBM 701, marking the beginning of a series of successful computers that established IBM as a leading company in sales.

• The second generation of computers (1956-1963) replaced vacuum tubes with transistors, resulting in smaller machines that consumed less electricity.

• Advanced communication with these new computers was facilitated by high-level programming languages, moving beyond machine language.

Innovations and Milestones

• In 1956, IBM sold its first magnetic disk system for $1.23 million, which could store 5 megabytes using metal disks.

• The development of Fortran marked the creation of the first general-purpose high-level programming language during this period.

Advancements in Mainframe Technology

• By 1959, IBM released the mainframe model 1400 based on transistors; it became highly successful with over 12,000 units sold.

• The introduction of the IBM 1620 in 1960 proved popular for scientific computing and utilized magnetic core memory.

Transition to Integrated Circuits

• The third generation (1964-1970), initiated by the announcement of the IBM System/360, allowed software compatibility across various models.

• This era saw significant advancements with integrated circuits replacing circuit boards and enabling more compact designs.

Emergence of Personal Computing

• By introducing mini-computers like the IBM System/360 and System/370, costs were reduced while processing power increased significantly.

• The development of silicon chips led to complex devices being built more efficiently than ever before.

Microprocessors and Personal Computers

• In 1971, Intel launched its first microprocessor (4004), paving the way for modern computing architectures.

• Notable developments included scientific computers like Nicolette's model designed for specific calculations.

Rise of Microsoft and Home Computing Revolution

• Microsoft was founded by Paul Allen and Bill Gates in 1975; they later developed software that would dominate personal computing markets.

• The launch of the IBM PC in 1981 revolutionized personal computing standards alongside Microsoft's MS-DOS operating system.

Evolution into Modern Operating Systems

History of Windows Operating Systems

Early Developments in Computing

• In 1991, Tim Berners-Lee conceptualized hypertext, leading to the creation of the World Wide Web (WWW), revolutionizing internet interaction.

• IBM developed OS/2 as a successor to DOS, initially in collaboration with Microsoft until Microsoft shifted focus to Windows 3.0.

Major Releases and Innovations

• Windows 98 was launched on June 25, 1998, featuring new hardware drivers and the FAT32 file system for improved storage management.

• The release of Windows 98 Second Edition on May 5, 1999, introduced internet connection sharing among multiple computers via a single phone line.

Advancements in System Functionality

• In the year 2000, Microsoft released Windows 2000 aimed at system administrators with enhanced networking services and compatibility with various devices.

• Windows XP debuted in 2001 by merging NT and 9x families; it featured a new interface and multimedia capabilities across several editions.

Evolution of User Experience

• By 2007, Microsoft launched Windows Vista alongside the first iPhone; Vista introduced significant changes but faced mixed reviews from users.

• In October 2009, Windows 7 was released as a successor to Vista with improvements like faster boot times and better user account control.

Modern Era of Operating Systems

• The introduction of Windows 8 in 2012 aimed for cross-platform functionality across PCs, tablets, and smartphones using HTML5 and JavaScript.

• A year later, Windows 8.1 was released as an update focusing on performance enhancements and user interface improvements including a start button.

Current Trends in Computing Technology