Saturday, November 26, 2011

1. Describe about the types of computers?
A. A computer is simply a tool to use for people.
            It is a machine that can solve any problem by accepting data, perform, certain operations on the data and presenting result of those operations.
            Depending on the logic it uses.
A computer is generally classified into two types.   

1.      Analog computers
2.  Digital computers

personal computers


IBM Personal Computer:  IBM developed PC “personal Computer” in 1981. A personal computer is small in size and can be used anywhere and by anyone.

Definition of Computer System: Now, you would hardly find an area of modern living that is not yet touched by the      computer. If it has become indispensable for critical areas of information technology, telecommunication, defense preparedness, medical and space research, it is equally adept at handling with lightning speed mundane tasks like railway booking, electricity billing and online shopping. 

about generations of computers

1. What are the five generations of computers?
A. Generation of Computers
      Five generation of computers
1)                  1st generation [1951-58]: - 1st generation of computers uses the vacuum tubes, low memory of the computer and slow processing.
2)                  2nd generation [1958-64]: - vacuum tubes replaced with transistors. To improve the computer memory and speed.
3)                  3rd generation [1964-71]: - Transistors replaced with IC (Instigated circuits) to improve the computer memory and speed and install computer languages.
4)                  4th Generation [1971-82]: - IC replaced with LSIC (Large scale instigated circuits).
5)                  5th Generation [1982-onwords]: - LSIC replaced with VLSIC (very large scale instigated circuits). To improve the computer memory and speed.

Friday, November 25, 2011

  1. Step 1
Unplug the computer from all electrical sources.

HISTORY OF COMPUTER FATHER


Who Invented Computers?

Charles Babbage, an English mathematician, 
computers
CHARLES BABBAGE 
philosopher and inventor, is considered as the father of ‘programmable computers’. His first computer, which was completed, was the Difference Engine. It came out in the 1820s. The word ‘computer’ was used in the 16th century to denote a person who performed calculations. It was only in the 19th century that ‘computer’ got its modern sense of meaning.
Babbage was orn in London, England on 25 December, 1792 to Benjamin Babbage and Betsy Plumleigh. He was sent to a country school in Alphington at the age of eight. He also attended King Edward VI Grammar School and Holmwood Academy. In 1812, he was transferred to Peterhouse, Cambridge. He was a top mathematician there. It is said that he received his honoree degree without passing an examination. Babbage was married to Georgiana Whitmore on 25 July, 1814. The couple had eight children.
To define a computer is a complex phenomenon and therefore, some critics argue why a abacus or slide rule or astrolabe or William Schikard’s calculator etc. is not considered as the first computer. Those devices could also perform calculations, the critics say. The debate is endless but experts normally agree on the Difference Engine as the first computer in the modern sense of the word. Babbage worked for ten years on his ‘Difference Engine’ but gave up the idea later. It is said that he lost interest because he had a better computer ‘Analytical Engine’ in mind. Most of his designs were never materialized. The main reasons included funding problems and lack of enthusiasm and support from contemporaries.CHARLES BABBAGE: The real beginning of computers, as we know them today, started with the efforts of mathematics professor Charles Babbage of Britain. Son of a banker father, Babbage was very intelligent in his childhood itself. He was excellent in mathematics.  In 1821, Babbage invented a machine known as the Difference Engine to perform mathematical calculations.  Soon, he began to work on the new Machine, and in1856 he succeeded in developing it.  The new machine was named the Analytical Engine. Due to his contribution in the field of computers, Charles Babbage is also known as father of Modern Compute

computers meaning

1. Abbreviation of Computer?
A. Expancation of Computer: -
C à Commonly
O à Operating
M à Machine
P à Particularly
U à Used for
T à Teaching and Training
E à Educational
R à Research

Commonly Operating Machine Particularly used for Teaching and Training Educational Research Leads to Computer

tally courses demo through online videos