This document provides an introduction to the history of computing machines and computer basics. It discusses early calculating devices like the abacus and mechanical calculators. The four generations of computers are outlined, from the first generation using vacuum tubes to the modern fourth generation using microprocessors. Key early computers like ENIAC, the IBM PC, and Apple Macintosh are mentioned. The document also provides an overview of computer hardware components like the processor, RAM, ROM, and factors that impact performance. It concludes with a discussion of parallel processing and the goals of fifth generation computing.
The presentation given at MSBTE sponsored content updating program on 'PC Maintenance and Troubleshooting' for Diploma Engineering teachers of Maharashtra.
Venue: Government Polytechnic, Nashik
Date: 17/01/2011
Session-1: Introduction to Computers.
Basic Computer Operations. Input: Information and programs are entered into the computer through Input devices such as the keyboard, disks, or through other computers via network connections or modems connected to the Internet.
The presentation given at MSBTE sponsored content updating program on 'PC Maintenance and Troubleshooting' for Diploma Engineering teachers of Maharashtra.
Venue: Government Polytechnic, Nashik
Date: 17/01/2011
Session-1: Introduction to Computers.
Basic Computer Operations. Input: Information and programs are entered into the computer through Input devices such as the keyboard, disks, or through other computers via network connections or modems connected to the Internet.
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Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
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This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
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The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
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Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
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Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
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Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
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2. Computer Science: A foundation
• Programming
• Game
Development
• Software
Engineering
2
A computer science foundation
Software
Development
Networking
and IT
Digital
Media
General
Education
• Web design and
development
• Animation
• Modeling
• Networking
• Security
• System
Administration
• Information
Technology
• History
• Perspective
• Social issues
• Economic issues
• Ethic issues
• Consumer issues
3. 3
Role of Algorithms
• Algorithm: A set of steps that defines how a task is performed
• Program: A representation of an algorithm
• Programming: The process of developing a program
• Software: Programs and algorithms
• Hardware: Equipment used to input information (data) and output the
results of the programs, algorithms.
Algorithm
Program
Programming
Software
Hardware
4. 4
Origins of Computing Machines:
Early computing devices
– Abacus: positions of beads represent numbers
Abacus
300 BC by Babylonians
around 1200 A.D. in China and Japan
5. Early computing devices
5
Pascal’s mechanical calculator - 1645
Gear-based machines (1600s-1800s)
Positions of gears represent numbers
Inventors: Blaise Pascal, Wilhelm Leibniz,
Charles Babbage
6. 6
Early Data Storage
• Punched cards
– First used in Jacquard Loom (1801) to store patterns for weaving
cloth
– Storage of programs in Babbage’s Analytical Engine
– Popular through the 1970’s
7. 7
Early programming
• Augusta Ada King (Byron), Countess
of Lovelace (1815-1852)
• She is known as the "first
programmer".
• The computer language Ada,
created by the U.S. Defense
Department, was named after Ada
Lovelace.
8. 8
Babbage’s Difference Engine (1822)
• Babbage is credited with inventing the first mechanical computer that
eventually led to more complex designs. (1822)
• The first difference engine was composed of around 25,000 parts, weighed
fifteen tons (13,600 kg), and stood 8 ft (2.4 m) high. Although he received
ample funding for the project, it was never completed. (Wikipedia)
Part of the Difference Engine (below)
9. 9
Early Computers
• Here is a brief overview of some of the early computers and trends in
computing.
Vacuum
tube
Transistor Microchip
10. 10
First Generation – Vacuum Tubes
• 1930’s – Vacuum tubes were used as electronic circuits
or electronic switches.
11. 11
1946 - ENIAC
• First large-scale electronic digital computer was ENIAC (Electronic
Numerical Integrator and Calculator)
• 30 feet long, 8 feet wide, and 8 feet high
• 3 additions every second, (incredibly slow by today’s standards).
• http://www.youtube.com/watch?v=VAnhFNJgNYY
12. 12
Second Generation – Transistors
• 1947 - Walter Brittain and Willaim Shockley invented the
transistor at Bell Laboratories
• Replaced the vacuum tube as an electronic switch
13. 13
Third Generation – Integrated Circuits
• 1959, Jack Kirby and Robert Noyce (who later became the cofounder
of Intel Corp.) developed the first integrated circuit (silicon chip or
microchip).
• An integrated circuit (IC) is a system of interrelated circuits packaged
together on a single sliver of silicon.
• It is a way of placing multiple (millions) transistor devices into as single,
smaller device, the “microchip.”
• http://www.youtube.com/watch?v=aWVywhzuHnQ&feature=related
14. 14
Fourth Generation - Microprocessor
• A microprocessor is a Central Processing Unit (CPU) on
a single chip.
• 1971, Intel Corp. introduced the first microprocessor chip.
– Intel 4004
• 108 kHz and contained (equivalent of) 2300 transistors
15. IBM Personal Computer
• On August 12, 1981,
IBM released their new
computer, named the
IBM PC
• 2004 – IBM sells PC
business to Lenovo
15
16. Apple Computers
• 1975 – Steve Jobs and
Steve Wozniak starts
Apple Computer
• 1984 – Apple
Macintosh with
Graphical User
Interface (GUI)
16
17. Laptops
• 1981 - Adam Osborne,
produced the Osborne 1
• 1988 - Compaq laptop with
color screen
• 2008 – Macbook Air –
thinnest laptop
• 2011 – Dell XPS 15Z –
thinnest Windows laptop
17
18. 18
Trends from 1990 to today…
• Microsoft continues to update Windows
with latest version Windows called
“Windows 8”
• LINUX operating system, an open
source version of UNIX, is taking on
MS Windows and gaining in popularity
• IBM has stopped making small
computers; sold their business to
Lenovo
• HP, the largest maker of PC is
planning to sell their PC division
• Apple continues to be a major player in
personal computers, especially for the
“creative market”, iPods, iPads,
iPhones, etc.
• Google has become a major player in
the Internet solutions
19. 19
Trends from 1990 to today…
• Faster
• Smaller
• More reliable
• Less
expensive
• Easier to use
20. Fifth Generation
• Fifth generation computing devices, based on artificial
intelligence, are continuing to be in development.
• Parallel Processing is coming and showing the possibility
that the power of many CPU's can be used side by side,
and computers will be more powerful than those under
central processing.
• The goal of fifth-generation computing is to develop
devices that respond to natural language input and are
capable of learning and self-organization.
20
22. 2222
What is a computer?
• A computer is a digital device which can be programmed
to change (process) information from one form to another.
– Do exactly as they are told.
– Digital devices: Understand only two different states
(OFF and ON - 0 and 1)
23. 2323
Traditional Types of Computers
• General purpose computers
–Super computer
–Mainframe
–Personal Computer
24. Traditional types of computers:
• Super computers
– fast processing power
– used by NASA and similar organizations
– Example: CRAY supercomputers
24
25. 2525
Traditional Types of Computers:
• First computers, introduced in 1950s
• Used by large businesses
• Typically supported thousands of users
• Very expensive
• Used for very large processing tasks
• IBM’s new Mainframe
– http://www.youtube.com/watch?v=LN4J4mClckA
• Mainframe
Computers
26. 2626
Traditional Types of Computers:
Personal Computers
• Small, self-contained computers
with their own CPUs
• Uses a microprocessor, a CPU
(Central Processing Unit) on a
single chip.
29. 2929
Hardware versus Software
• Software = The
programs (instructions)
that tell the computer
what to do.
– System Software
– Application Software
– Stored on a storage
media such as hard
disk, CD-ROM, floppy
disk, tape, etc.
32. 3232
The Processor
circuit board = a board with
integrated circuits
(microchips)
• system board or
motherboard
• interface boards or expansion
boards
system board or motherboard
= a single circuit board with
the components which make
up the computer’s processor
for a microcomputer, including
the:
• CPU (Central Processing
Unit)
• Memory
– RAM
– ROM or ROM BIOS
• expansion slots
34. 34Rick Graziani graziani@cabrillo.edu 34
The Processor: The CPU
CPU (Central Processing Unit) = A complex collection of electronic
circuits on one or more integrated circuits (chips) which:
1. executes the instructions in a software program
2. communicates with other parts of the computer system, especially
RAM and input devices
The CPU is the computer!
35. 3535
RAM
RAM is TEMPORARY memory
RAM is volatile
• stores ON and OFF bits (software and data) electrically
• when power goes off, everything in RAM is lost
36. 3636
ROM (Read Only Memory)
ROM (Read Only Memory) = integrated circuits (microchips) that are used
to permanently store start-up (boot) instructions and other critical
information
Read Only = information which:
• Cannot be changed
• Cannot be removed
• Fixed by manufacturer
37. 3737
ROM (Read Only Memory)
ROM is sometimes known as ROM BIOS (Basic Input Output System
software)
ROM contains:
• start-up (boot) instructions
• instructions to do “low level” processing of input and output devices,
such as the communications with the keyboard and the monitor