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History of Computer
SLIDE 03
History of computer
 The computer as we know it today had its beginning
with a 19th century English mathematics professor
name Charles Babbage. He designed the Analytical
Engine and it was this design that the basic
framework of the computers of today are based on.
 Generally speaking, computers can be classified into
three generations. Each generation lasted for a certain
period of time and each gave us either a new and
improved computer or an improvement to the existing
computer.
First Generation: (1937 – 1946)
 In 1937 the first electronic digital computer was built by Dr.
John V. Atanasoff and Clifford Berry. It was called the
Atanasoff-Berry Computer (ABC).
 In 1943 an electronic computer name the Colossus was built for
the military. Other developments continued until in 1946 the
first general purpose digital computer, the Electronic Numerical
Integrator and Computer (ENIAC) was built.
 It is said that this computer weighed 30 tons, and had 18,000
vacuum tubes which was used for processing. When this
computer was turned on for the first-time lights dim in sections
of Philadelphia. Computers of this generation could only
perform single
 task, and they had no operating system.
First Generation: (1937 – 1946)
Second generation: (1947 – 1962)
 This generation of computers used transistors instead of
vacuum tubes which were more reliable. In 1951 the first
computer for commercial use was introduced to the public:
The Universal Automatic Computer (UNIVAC I).
 In 1953 the International Business Machine (IBM) 650 and
700 series computers made their mark in the computer
world. During this generation of computers over 100
computer programming languages were developed,
computers had memory and operating systems. Storage
media such as tape and disk were in use also were printers
for output.
Third generation: 1963 -
Present
 The invention of integrated circuit brought us the third
generation of computers. With this invention computers
became smaller, more powerful more reliable and they are
able to run many different programs at the same time. In
1980 Microsoft Disk Operating System (MS - DOS) was
born and in 1981 IBM introduced the personal computer
(PC) for home and office use. Three years later Apple gave
us the Macintosh computer with its icon driven interface
and the 90s gave us Windows operating system.
 As a result of the various improvements to the development
of the computer we have seen the computer being used in
all areas of life. It is a very useful tool that wilt continue to
experience new development as time passes.
Folder, Copy, Cut and Past
Multiple folders
Folder
Step 1:
Right click (blank place) on display
Step 02:
Click on new
Step 03:
Click on folder/ new folder
Your folder is created successfully
Rename Your Folder
Once your folder is created the right click on it
Then click and press backspace and write your file
name
Copy, Cut, Paste
Click on black pace where you want to copy
your file
History of Computers from Early Development to Modern Era

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History of Computers from Early Development to Modern Era

  • 2. History of computer  The computer as we know it today had its beginning with a 19th century English mathematics professor name Charles Babbage. He designed the Analytical Engine and it was this design that the basic framework of the computers of today are based on.  Generally speaking, computers can be classified into three generations. Each generation lasted for a certain period of time and each gave us either a new and improved computer or an improvement to the existing computer.
  • 3. First Generation: (1937 – 1946)  In 1937 the first electronic digital computer was built by Dr. John V. Atanasoff and Clifford Berry. It was called the Atanasoff-Berry Computer (ABC).  In 1943 an electronic computer name the Colossus was built for the military. Other developments continued until in 1946 the first general purpose digital computer, the Electronic Numerical Integrator and Computer (ENIAC) was built.  It is said that this computer weighed 30 tons, and had 18,000 vacuum tubes which was used for processing. When this computer was turned on for the first-time lights dim in sections of Philadelphia. Computers of this generation could only perform single  task, and they had no operating system.
  • 5. Second generation: (1947 – 1962)  This generation of computers used transistors instead of vacuum tubes which were more reliable. In 1951 the first computer for commercial use was introduced to the public: The Universal Automatic Computer (UNIVAC I).  In 1953 the International Business Machine (IBM) 650 and 700 series computers made their mark in the computer world. During this generation of computers over 100 computer programming languages were developed, computers had memory and operating systems. Storage media such as tape and disk were in use also were printers for output.
  • 6.
  • 7. Third generation: 1963 - Present  The invention of integrated circuit brought us the third generation of computers. With this invention computers became smaller, more powerful more reliable and they are able to run many different programs at the same time. In 1980 Microsoft Disk Operating System (MS - DOS) was born and in 1981 IBM introduced the personal computer (PC) for home and office use. Three years later Apple gave us the Macintosh computer with its icon driven interface and the 90s gave us Windows operating system.  As a result of the various improvements to the development of the computer we have seen the computer being used in all areas of life. It is a very useful tool that wilt continue to experience new development as time passes.
  • 8.
  • 9.
  • 10. Folder, Copy, Cut and Past Multiple folders
  • 11. Folder Step 1: Right click (blank place) on display
  • 13. Step 03: Click on folder/ new folder
  • 14. Your folder is created successfully
  • 15. Rename Your Folder Once your folder is created the right click on it
  • 16. Then click and press backspace and write your file name
  • 18. Click on black pace where you want to copy your file