You need to Register First!

Before you Log-in...

HomePortalCalendarGalleryFAQSearchMemberlistUsergroupsRegisterLog in
Sample design and thinking of Something new Graphical design.... To all member's of this website please Fill up the form of your Personal Information for Special Reference of our Forum thank you!
For non-member just post your comment in the chatbox. Thanks for Visiting our site.
Log in
Log in automatically: 
:: I forgot my password
Latest topics
» Adobe Photoshop CS6 portable
Mon Nov 28, 2016 7:06 pm by Kuteshikimi

» Adobe Photoshop CS3 portable
Mon Nov 28, 2016 7:04 pm by Kuteshikimi

» ADODC Datagrid
Fri Jul 06, 2012 8:22 am by Kuteshikimi

» Programming Language
Fri Jul 06, 2012 8:12 am by Kuteshikimi

» History of C++
Fri Jul 06, 2012 8:11 am by Kuteshikimi

» Part of a C++ Syntax
Fri Jul 06, 2012 8:09 am by Kuteshikimi

» TURBO C++ Operators
Fri Jul 06, 2012 8:08 am by Kuteshikimi

» Adding 3 Number
Fri Jul 06, 2012 8:05 am by Kuteshikimi

» C++ Sample System
Fri Jul 06, 2012 8:03 am by Kuteshikimi

Top 100 Games
Game Site Top 100

Most active topic starters
Top posters
Top posting users this month
Top posting users this week
Visitor’s Unique Page-View
Visitor Counter
Visitor Counter
free counters
Similar topics

Share | 

 The History of Computer

Go down 

Posts : 41
Join date : 2011-09-01
Age : 28
Location : Cavite City, Philippines

PostSubject: The History of Computer   Fri Sep 16, 2011 4:24 am

The history of Computer

1. Abacus - 3,000 BC, it was invented in Babylonia.
- Device that has a frame with beads string on wires or rods.
Arithmetic calculations are performed by manipulating the
- Developed in Chine 12th Century

2. Napier's Bone - Developed by John Napier(Scottish Mathematician)
- It is composed of a set eleven rods with numbers marked on
them in such a way that by simply placing the rods side by
side, products and quotient of large numbers can be obtained.

3. Oughtred's Slide Rule - Developed by William Oughtred(English
- Consists of 2 movable rules placed side by side.

4. Pascal's Calculator - Develop by Blaise Pascal (French Mathematician and
Experimental Physicist) Who was one of the First Modern
Scientist to developed and build calculator
- It was operated by dialing a series of wheels.
- It was capable of adding and subtracting.

5. Leibniz's Calculator - Invented by Gottfried Wilhelm Leibniz(German
- It utilized the same techniques for addition and subtraction
as Pascal's Device but could also perform multiplication and
division, as well as extracting square roots.

6. Babbage's Difference and Analytical Engine - Invented by Charles
Babbage(English Mathematician)
- Who is known as the Father of Modern Computer.

* Difference Engine - Designed to automate a standard procedure
for calculating polynomials.

* Analytical Engine - Uses two type of Cards.

- Operation Card - Uses to indicate a specific function to be
- Variable Card - Used to specify the actual data used
command or print.

7. Hollerith Punched Card/ tabulating Machine - Developed by Herman
- Used by US Berequ of Census in 1890.
- It uses 3 by 5 inches punched card to record data stored.

"ABA Augusta Love Lace" also know as Lady ADA Byron"
-Is the First Computer Programmer.
Back to top Go down
View user profile
The History of Computer
Back to top 
Page 1 of 1
 Similar topics
» 1st Canadian Armoured Carrier Regiment: The History of the Kangaroos
» Leather Necks: A Little History.
» Boat Movements
» How justice and forensics are changing today
» For all animal lovers

Permissions in this forum:You cannot reply to topics in this forum
 :: FORUM :: Datacom Institute of Computer Technology :: Window's Operating System-
Jump to: