12. Computer Evolution
Early 1800’s
Jacquard – uses
punch cards to
control the pattern
of the weaving
loom.
Sunday, October 31, 2010
13. Computer Evolution
Early 1800’s
Jacquard – uses
punch cards to
control the pattern
of the weaving
loom.
1832 Charles
Babbage - invents
the Difference
Engine
Sunday, October 31, 2010
14. Computer Evolution
Early 1800’s
Jacquard – uses
punch cards to
control the pattern
of the weaving
loom.
1832 Charles
Babbage - invents
the Difference
Engine
Sunday, October 31, 2010
16. The Punch Card
1890 Herman
Hollerith – invents a
machine using
punch card to
tabulate info for the
Census. He starts
the company that
would later be IBM.
Sunday, October 31, 2010
17. The Punch Card
1890 Herman
Hollerith – invents a
machine using
punch card to
tabulate info for the
Census. He starts
the company that
would later be IBM.
Sunday, October 31, 2010
19. Evolution (continued)
1946 – Mauchly and Eckert created the
ENIAC computer, first electronic
computer is unveiled at University of
Pennsylvania (shown on next slide)
Sunday, October 31, 2010
24. ENIAC Computer
Miles of wiring
18,000 vacuum tubes
Thousands of resistors and switches
Sunday, October 31, 2010
25. ENIAC Computer
Miles of wiring
18,000 vacuum tubes
Thousands of resistors and switches
No monitor
Sunday, October 31, 2010
26. ENIAC Computer
Miles of wiring
18,000 vacuum tubes
Thousands of resistors and switches
No monitor
3,000 blinking lights
Sunday, October 31, 2010
27. ENIAC Computer
Miles of wiring
18,000 vacuum tubes
Thousands of resistors and switches
No monitor
3,000 blinking lights
Cost $486,000
Sunday, October 31, 2010
28. ENIAC Computer
Miles of wiring
18,000 vacuum tubes
Thousands of resistors and switches
No monitor
3,000 blinking lights
Cost $486,000
100,000 additions per second
Sunday, October 31, 2010
29. ENIAC Computer
Miles of wiring
18,000 vacuum tubes
Thousands of resistors and switches
No monitor
3,000 blinking lights
Cost $486,000
100,000 additions per second
Weighed 30 tons
Sunday, October 31, 2010
31. 1943
Base codes develop by Grace
Hopper while working on the Mark I
programming project.
Sunday, October 31, 2010
32. 1943
Base codes develop by Grace
Hopper while working on the Mark I
programming project.
She invented the phrase “bug” – an
error in a program that causes a
program to malfunction.
Sunday, October 31, 2010
34. 1950s
Vacuum Tubes were the components
for the electronic circuitry
Sunday, October 31, 2010
35. 1950s
Vacuum Tubes were the components
for the electronic circuitry
Punch Cards main source of input
Sunday, October 31, 2010
36. 1950s
Vacuum Tubes were the components
for the electronic circuitry
Punch Cards main source of input
Speeds in milliseconds (thousands/
sec)
Sunday, October 31, 2010
37. 1950s
Vacuum Tubes were the components
for the electronic circuitry
Punch Cards main source of input
Speeds in milliseconds (thousands/
sec)
100,000 additions/sec.
Sunday, October 31, 2010
38. 1950s
Vacuum Tubes were the components
for the electronic circuitry
Punch Cards main source of input
Speeds in milliseconds (thousands/
sec)
100,000 additions/sec.
Used for scientific calculations
Sunday, October 31, 2010
39. 1950s
Vacuum Tubes were the components
for the electronic circuitry
Punch Cards main source of input
Speeds in milliseconds (thousands/
sec)
100,000 additions/sec.
Used for scientific calculations
New computers were the rule, cost
effectiveness wasn’t’
Sunday, October 31, 2010
41. Transistors were electronic circuitry
(smaller, faster, more reliable than
vacuum tubes)
1960s
Sunday, October 31, 2010
42. Transistors were electronic circuitry
(smaller, faster, more reliable than
vacuum tubes)
Speeds in microseconds (millionth/sec)
1960s
Sunday, October 31, 2010
43. Transistors were electronic circuitry
(smaller, faster, more reliable than
vacuum tubes)
Speeds in microseconds (millionth/sec)
200,000 additions/sec.
1960s
Sunday, October 31, 2010
44. Transistors were electronic circuitry
(smaller, faster, more reliable than
vacuum tubes)
Speeds in microseconds (millionth/sec)
200,000 additions/sec.
Computers In Businesses: Emphasis on
marketing of computers to businesses
1960s
Sunday, October 31, 2010
45. Transistors were electronic circuitry
(smaller, faster, more reliable than
vacuum tubes)
Speeds in microseconds (millionth/sec)
200,000 additions/sec.
Computers In Businesses: Emphasis on
marketing of computers to businesses
Data files stored on magnetic tape
1960s
Sunday, October 31, 2010
46. Transistors were electronic circuitry
(smaller, faster, more reliable than
vacuum tubes)
Speeds in microseconds (millionth/sec)
200,000 additions/sec.
Computers In Businesses: Emphasis on
marketing of computers to businesses
Data files stored on magnetic tape
Computer Scientists controlled
operations
1960s
Sunday, October 31, 2010
47. Transistors were electronic circuitry
(smaller, faster, more reliable than
vacuum tubes)
Speeds in microseconds (millionth/sec)
200,000 additions/sec.
Computers In Businesses: Emphasis on
marketing of computers to businesses
Data files stored on magnetic tape
Computer Scientists controlled
operations
1960s
Sunday, October 31, 2010
49. Late 60’s Early 70’s
Integrated circuit boards
Sunday, October 31, 2010
50. Late 60’s Early 70’s
Integrated circuit boards
New input methods such as plotters,
scanners
Sunday, October 31, 2010
51. Late 60’s Early 70’s
Integrated circuit boards
New input methods such as plotters,
scanners
Software became more important
Sunday, October 31, 2010
52. Late 60’s Early 70’s
Integrated circuit boards
New input methods such as plotters,
scanners
Software became more important
Sophisticated operating systems
Sunday, October 31, 2010
53. Late 60’s Early 70’s
Integrated circuit boards
New input methods such as plotters,
scanners
Software became more important
Sophisticated operating systems
Improved programming languages
Sunday, October 31, 2010
54. Late 60’s Early 70’s
Integrated circuit boards
New input methods such as plotters,
scanners
Software became more important
Sophisticated operating systems
Improved programming languages
Storage capabilities expanded (disks)
Sunday, October 31, 2010
57. Late 80’s to Current
Improved circuitry – several thousand
transistors placed on a tiny silicon chip.
Sunday, October 31, 2010
58. Late 80’s to Current
Improved circuitry – several thousand
transistors placed on a tiny silicon chip.
Pentium chip named by Intel
Sunday, October 31, 2010
59. Late 80’s to Current
Improved circuitry – several thousand
transistors placed on a tiny silicon chip.
Pentium chip named by Intel
Modems – communication along telephone
wires
Sunday, October 31, 2010
60. Late 80’s to Current
Improved circuitry – several thousand
transistors placed on a tiny silicon chip.
Pentium chip named by Intel
Modems – communication along telephone
wires
Portable computers: laptops
Sunday, October 31, 2010
61. Late 80’s to Current
Improved circuitry – several thousand
transistors placed on a tiny silicon chip.
Pentium chip named by Intel
Modems – communication along telephone
wires
Portable computers: laptops
Increased storage capabilities: gigabytes
Sunday, October 31, 2010
62. Late 80’s to Current
Improved circuitry – several thousand
transistors placed on a tiny silicon chip.
Pentium chip named by Intel
Modems – communication along telephone
wires
Portable computers: laptops
Increased storage capabilities: gigabytes
Emphasis on information needed by the
decision maker.
Sunday, October 31, 2010
85. Central Processing Unit: CPU
PROCESSINGPROCESSING
HARDWARE
Sunday, October 31, 2010
86. Central Processing Unit: CPU
The Brains or Intelligence of the
computer. Controls input and
output
PROCESSINGPROCESSING
HARDWARE
Sunday, October 31, 2010
87. Central Processing Unit: CPU
The Brains or Intelligence of the
computer. Controls input and
output
The part of the computer that
interprets and executes
instructions.
Silicon chip: integrated circuit
board
Pentium: name give to a particular
chip
PROCESSINGPROCESSING
HARDWARE
Sunday, October 31, 2010
88. Central Processing Unit: CPU
The Brains or Intelligence of the
computer. Controls input and
output
The part of the computer that
interprets and executes
instructions.
Silicon chip: integrated circuit
board
Pentium: name give to a particular
chip
PROCESSINGPROCESSING
HARDWARE
Sunday, October 31, 2010
89. What two numbers are
used in Binary Code?
Sunday, October 31, 2010
90. What two numbers are
used in Binary Code?
0 and 1
Sunday, October 31, 2010
91. What two numbers are
used in Binary Code?
0 and 1
They are each called a BIT
Sunday, October 31, 2010
92. What two numbers are
used in Binary Code?
0 and 1
They are each called a BIT
8 BITS make a BYTE
Sunday, October 31, 2010
93. What two numbers are
used in Binary Code?
0 and 1
They are each called a BIT
8 BITS make a BYTE
1 BYTE makes a letter or
number
Sunday, October 31, 2010
94. What two numbers are
used in Binary Code?
0 and 1
They are each called a BIT
8 BITS make a BYTE
1 BYTE makes a letter or
number
KILOBYTE = 1,024 bytes
Sunday, October 31, 2010
95. What two numbers are
used in Binary Code?
0 and 1
They are each called a BIT
8 BITS make a BYTE
1 BYTE makes a letter or
number
KILOBYTE = 1,024 bytes
MEGABYTE = 1,048,576 bytes
Sunday, October 31, 2010
96. What two numbers are
used in Binary Code?
0 and 1
They are each called a BIT
8 BITS make a BYTE
1 BYTE makes a letter or
number
KILOBYTE = 1,024 bytes
MEGABYTE = 1,048,576 bytes
GIGABYTE = 1,024 megabytes
Sunday, October 31, 2010
97. What two numbers are
used in Binary Code?
0 and 1
They are each called a BIT
8 BITS make a BYTE
1 BYTE makes a letter or
number
KILOBYTE = 1,024 bytes
MEGABYTE = 1,048,576 bytes
GIGABYTE = 1,024 megabytes
TERABYTE = 1,024 gigabytes
Sunday, October 31, 2010
104. MEMORY
PROCESSING HARDWARE
ROM
READ ONLY MEMORY
Small
Instructions are
installed permanently
at the factory
Cannot be changed
MEMORY
Sunday, October 31, 2010
105. MEMORY
PROCESSING HARDWARE
ROM
READ ONLY MEMORY
Small
Instructions are
installed permanently
at the factory
Cannot be changed
These instructions
check the computer’s
resources and looks
for Operating System
MEMORY
Sunday, October 31, 2010
106. MEMORY
PROCESSING HARDWARE
ROM
READ ONLY MEMORY
Small
Instructions are
installed permanently
at the factory
Cannot be changed
These instructions
check the computer’s
resources and looks
for Operating System
RAM
MEMORY
Sunday, October 31, 2010
107. MEMORY
PROCESSING HARDWARE
ROM
READ ONLY MEMORY
Small
Instructions are
installed permanently
at the factory
Cannot be changed
These instructions
check the computer’s
resources and looks
for Operating System
RAM
RANDOM ACCESS
MEMORY
MEMORY
Sunday, October 31, 2010
108. MEMORY
PROCESSING HARDWARE
ROM
READ ONLY MEMORY
Small
Instructions are
installed permanently
at the factory
Cannot be changed
These instructions
check the computer’s
resources and looks
for Operating System
RAM
RANDOM ACCESS
MEMORY
Main Memory
MEMORY
Sunday, October 31, 2010
109. MEMORY
PROCESSING HARDWARE
ROM
READ ONLY MEMORY
Small
Instructions are
installed permanently
at the factory
Cannot be changed
These instructions
check the computer’s
resources and looks
for Operating System
RAM
RANDOM ACCESS
MEMORY
Main Memory
Temporary—it is erased
when turned off.
MEMORY
Sunday, October 31, 2010
110. MEMORY
PROCESSING HARDWARE
ROM
READ ONLY MEMORY
Small
Instructions are
installed permanently
at the factory
Cannot be changed
These instructions
check the computer’s
resources and looks
for Operating System
RAM
RANDOM ACCESS
MEMORY
Main Memory
Temporary—it is erased
when turned off.
It is where programs and
data is stored while being
processed
MEMORY
Sunday, October 31, 2010
114. OUTPUT DEVICES
Useful information that leaves the system
Output Hardware includes:
OUTPUT
Sunday, October 31, 2010
115. OUTPUT DEVICES
Useful information that leaves the system
Output Hardware includes:
•Monitor: soft copy
•Printers: hard copy
•Flat Panel displays
•Voice and music -
speakers
•Synthesizers
•Plotters OUTPUT
Sunday, October 31, 2010
120. AUXILIARY STORAGE
DEVICES
Network Drive (H: drive)
Hard Disk Drive (C:drive)
Floppy Disk Drive with 3
½” Floppy Disk (A:drive)
AUXILIARY
STORAGE
Sunday, October 31, 2010
121. AUXILIARY STORAGE
DEVICES
Network Drive (H: drive)
Hard Disk Drive (C:drive)
Floppy Disk Drive with 3
½” Floppy Disk (A:drive)
Smart card
AUXILIARY
STORAGE
Sunday, October 31, 2010
122. AUXILIARY STORAGE
DEVICES
Network Drive (H: drive)
Hard Disk Drive (C:drive)
Floppy Disk Drive with 3
½” Floppy Disk (A:drive)
Smart card
CD Read/Write Drive
AUXILIARY
STORAGE
Sunday, October 31, 2010
123. AUXILIARY STORAGE
DEVICES
Network Drive (H: drive)
Hard Disk Drive (C:drive)
Floppy Disk Drive with 3
½” Floppy Disk (A:drive)
Smart card
CD Read/Write Drive
Zip Drive
AUXILIARY
STORAGE
Sunday, October 31, 2010
124. AUXILIARY STORAGE
DEVICES
Network Drive (H: drive)
Hard Disk Drive (C:drive)
Floppy Disk Drive with 3
½” Floppy Disk (A:drive)
Smart card
CD Read/Write Drive
Zip Drive
Digital Audio Tape
AUXILIARY
STORAGE
Sunday, October 31, 2010
127. Hardware
Includes the electronic and mechanical
devices that process the data; refers to
the computer as well as peripheral
devices
Sunday, October 31, 2010
134. Circuits
The path from one
component of a
computer to
another that data
uses to travel.
Sunday, October 31, 2010
135. Circuits
The path from one
component of a
computer to
another that data
uses to travel.
Circuits run
between
RAM and the
microprocessor
RAM and various
storage devices
Sunday, October 31, 2010
136. Circuits
The path from one
component of a
computer to
another that data
uses to travel.
Circuits run
between
RAM and the
microprocessor
RAM and various
storage devices
Sunday, October 31, 2010
137. Circuits
The path from one
component of a
computer to
another that data
uses to travel.
Circuits run
between
RAM and the
microprocessor
RAM and various
storage devices
Sunday, October 31, 2010
144. Peripheral Devices
Devices connected by cable to the
CPU.
Used to expand the computer’s input,
output and storage capabilities.
Sunday, October 31, 2010
146. Input Devices
Units that gather
information and
transform that
information into a
series of electronic
signals for the
computer.
Sunday, October 31, 2010
147. Input Devices
Units that gather
information and
transform that
information into a
series of electronic
signals for the
computer.
Sunday, October 31, 2010
149. Keyboard
An arrangement of
letters, numbers,
and special function
keys that act as the
primary input
device to the
computer.
Sunday, October 31, 2010
150. Keyboard
An arrangement of
letters, numbers,
and special function
keys that act as the
primary input
device to the
computer.
Sunday, October 31, 2010
152. Mouse
An input device that
allows the user to
manipulate objects
on the screen by
moving the mouse
along the surface of
the desk.
Sunday, October 31, 2010
153. Mouse
An input device that
allows the user to
manipulate objects
on the screen by
moving the mouse
along the surface of
the desk.
Sunday, October 31, 2010
155. Sound Card
A circuit board that
gives the computer
the ability to accept
audio input, play
sound files, and
produce audio
output through
speakers or
headphones.
Sunday, October 31, 2010
156. Sound Card
A circuit board that
gives the computer
the ability to accept
audio input, play
sound files, and
produce audio
output through
speakers or
headphones.
Sunday, October 31, 2010
158. Modem
A device that sends
and receives data to
and from
computers over
telephone lines.
Sunday, October 31, 2010
159. Modem
A device that sends
and receives data to
and from
computers over
telephone lines.
Means (Modulate –
Demodulate).
Sunday, October 31, 2010
160. Modem
A device that sends
and receives data to
and from
computers over
telephone lines.
Means (Modulate –
Demodulate).
Sunday, October 31, 2010
161. Modem
A device that sends
and receives data to
and from
computers over
telephone lines.
Means (Modulate –
Demodulate).
Sunday, October 31, 2010
166. Monitor
Display device that forms an image by
converting electronic signals from the
computer into points of colored light
on the screen.
Sunday, October 31, 2010
168. Resolution
The density of the grid used to display
or print text and graphics; the greater
the horizontal and vertical density, the
higher the resolution.
Sunday, October 31, 2010
169. Resolution
The density of the grid used to display
or print text and graphics; the greater
the horizontal and vertical density, the
higher the resolution.
The amount of Pixels on the screen.
The more pixels the better the
resolution.
Sunday, October 31, 2010
171. Pixels
The smallest unit in a graphic image;
computer display devices use a matrix
of pixels to display text and graphics.
Sunday, October 31, 2010
172. Pixels
The smallest unit in a graphic image;
computer display devices use a matrix
of pixels to display text and graphics.
Basic unit of composition of an image
on a TV screen, Computer monitor, or
similar display
Sunday, October 31, 2010
177. Speakers
Output devices that receive signals
from the computer’s sound card to
play music, narration, or sound
effects.
Sunday, October 31, 2010
178. Speakers
Output devices that receive signals
from the computer’s sound card to
play music, narration, or sound
effects.
Sunday, October 31, 2010
180. Storage Devices
Used to keep data
when the power to
the computer is
turned off.
Sunday, October 31, 2010
181. Storage Devices
Used to keep data
when the power to
the computer is
turned off.
Different forms
Hard disk
Floppy or zip disks
CD-Writer
Sunday, October 31, 2010
182. Storage Devices
Used to keep data
when the power to
the computer is
turned off.
Different forms
Hard disk
Floppy or zip disks
CD-Writer
Sunday, October 31, 2010
183. Storage Devices
Used to keep data
when the power to
the computer is
turned off.
Different forms
Hard disk
Floppy or zip disks
CD-Writer
Sunday, October 31, 2010
193. Compact Discs
CD-ROM
Compact disk with read only memory
CD-R
Compact disk which you can write to only
one time. It then becomes a read only
disk.
Sunday, October 31, 2010
194. Compact Discs
CD-ROM
Compact disk with read only memory
CD-R
Compact disk which you can write to only
one time. It then becomes a read only
disk.
CD-RW
Compact disk which you may rewrite to.
Sunday, October 31, 2010
196. DVD
DVD ROM
Digital Video Disk which is read only.
Sunday, October 31, 2010
197. DVD
DVD ROM
Digital Video Disk which is read only.
DVD-R
Digital Video Disk which can be written to
one time. It then becomes read only.
Sunday, October 31, 2010
198. DVD
DVD ROM
Digital Video Disk which is read only.
DVD-R
Digital Video Disk which can be written to
one time. It then becomes read only.
DVD-RW
Digital Video Disk which can be rewritten
to.
Sunday, October 31, 2010
200. Flash or Jump Drives
External storage devices that can be
used like a external hard drive.
Sunday, October 31, 2010
201. Flash or Jump Drives
External storage devices that can be
used like a external hard drive.
They have the capability to be saved
to, deleted from, and files can be
renamed just like with a normal hard
drive.
Sunday, October 31, 2010