THE HISTORY OF
COMPUTERS
WHAT IS A COMPUTER?
                                              Monitor




  System Unit                                     Floppy Disk
                                                     Drive


                                                   CD-ROM /
       Keyboard                                  DVD-ROM Drive

                                                 Mouse


A computer is an electronic machine that accepts information
(Data), processes it according to specific instructions, and
provides the results as new information.
III- ELECTRICAL COUNTING MACHINES
9- The US census of the
  1880 took 9 years to                      1888
  compile and led to
  inaccurate figures. To
  solve the problem,
  Herman Hollerith
  invented a calculating
  machine that used
  electricity
 along with punched
 cards instead of mechanical gears.
III- ELECTRICAL COUNTING MACHINES




                                                            1943
            51 feet long and weighed over 5 tons



     11- MARK I was built by a team from IBM and Harvard
      University. Mark I used mechanical telephone switches
      to store information. It accepted data on punched cards,
      processed it and then output the new data.
IV- ELECTRONIC COUNTING MACHINES




                                                    1946




12- The ENIAC was the first US-built all-
  electronic computer built to perform ballistics
  calculations. (Away from IBM)
TRANSISTORS ON A CIRCUIT BOARD

                                    Resistors




                                    Transistors




                        Capacitor
TWO INVENTIONS THAT CHANGED
THE WAY COMPUTERS ARE BUILT!!



 2- The (IC) Integrated Circuit                           1961




                           The IC revolutionized the
                           entire electronic technology.
                           Ex: The Pentium Processor
                           contains 3.1 Million Transistors
                           in 1.5 inch square!
HOW THE PROCESSOR (CPU) IS PLACED ON
THE MOTHERBOARD

                                  RAM




  Intel 486 CPU
1975 - 1981




The Altair   The Apple I   The Floppy   The Hard   MS-DOS
                              Disk        Disk
1981 - 1993




The IBM PC     The Compaq      The Apple MS-Windows 3.0     The
             portable Computer Macintosh                  Pentium
                                                           Chip
INTEL PENTIUM PROCESSORS




    PENTIUM                PENTIUM Pro




                           PENTIUM II
The boy walks quickly.

            “quickly” is an
               adverb
            because it tells
             us how the
             man walks.
The boy walks quickly.

            A word adding
                to the
            meaning of a
             verb is called
              an adverb.
The boy walks quickly.

            Most adverbs
            are formed by
            adding ‘ly’ to
            an adjective.
brave   bravely
fortunate
            fortunately
noisy




        noisily
soft




       softly
skilful




          skilfully
careful

carefully
anxious   anxiously

 bitter    bitterly

brutal    brutally
careful    carefully

fearless   fearlessly

 noble      nobly
Underline those
words which are
 not adverbs:
Underline the
adverbs in the
  following
 sentences.
Underline the adverbs:
           In a library we
             should talk
               quietly.

Unidad 1

  • 2.
  • 3.
    WHAT IS ACOMPUTER? Monitor System Unit Floppy Disk Drive CD-ROM / Keyboard DVD-ROM Drive Mouse A computer is an electronic machine that accepts information (Data), processes it according to specific instructions, and provides the results as new information.
  • 4.
    III- ELECTRICAL COUNTINGMACHINES 9- The US census of the 1880 took 9 years to 1888 compile and led to inaccurate figures. To solve the problem, Herman Hollerith invented a calculating machine that used electricity along with punched cards instead of mechanical gears.
  • 5.
    III- ELECTRICAL COUNTINGMACHINES 1943 51 feet long and weighed over 5 tons  11- MARK I was built by a team from IBM and Harvard University. Mark I used mechanical telephone switches to store information. It accepted data on punched cards, processed it and then output the new data.
  • 6.
    IV- ELECTRONIC COUNTINGMACHINES 1946 12- The ENIAC was the first US-built all- electronic computer built to perform ballistics calculations. (Away from IBM)
  • 7.
    TRANSISTORS ON ACIRCUIT BOARD Resistors Transistors Capacitor
  • 8.
    TWO INVENTIONS THATCHANGED THE WAY COMPUTERS ARE BUILT!! 2- The (IC) Integrated Circuit 1961 The IC revolutionized the entire electronic technology. Ex: The Pentium Processor contains 3.1 Million Transistors in 1.5 inch square!
  • 9.
    HOW THE PROCESSOR(CPU) IS PLACED ON THE MOTHERBOARD RAM Intel 486 CPU
  • 10.
    1975 - 1981 TheAltair The Apple I The Floppy The Hard MS-DOS Disk Disk
  • 11.
    1981 - 1993 TheIBM PC The Compaq The Apple MS-Windows 3.0 The portable Computer Macintosh Pentium Chip
  • 12.
    INTEL PENTIUM PROCESSORS PENTIUM PENTIUM Pro PENTIUM II
  • 59.
    The boy walksquickly. “quickly” is an adverb because it tells us how the man walks.
  • 60.
    The boy walksquickly. A word adding to the meaning of a verb is called an adverb.
  • 61.
    The boy walksquickly. Most adverbs are formed by adding ‘ly’ to an adjective.
  • 62.
    brave bravely
  • 63.
    fortunate fortunately
  • 64.
    noisy noisily
  • 65.
    soft softly
  • 66.
    skilful skilfully
  • 67.
  • 68.
    anxious anxiously bitter bitterly brutal brutally
  • 69.
    careful carefully fearless fearlessly noble nobly
  • 70.
  • 71.
    Underline the adverbs inthe following sentences.
  • 72.
    Underline the adverbs: In a library we should talk quietly.