Learning Computer Skill Blog

ABBREVIATIONS EBEESCORP www.ebeescorp.com Inventors Of Computer Hardware  (1) Key board — Herman Hollerith, first keypunch device in 1930 (2) Transistor — John Bardeen, Walter Brattain & Wiliam Shockley (1947 - 1948) (3) RAM —        An Wang and Jay Forrester (1951) (4) Trackball — Tom Cranston and Fred Longstaff (1952) (5) Hard Disk — IBM , The IBM Model 350 Disk File (1956 ) (6) Integrated Circuit — Jack Kilby & Robert Noyce (1958) (7) Computer Mouse — Douglas Engelbart (1964) (8) Laser printer — Gary Stark weather at XEROX in (1969) (9) Floppy Disk — Alan Shugart & IBM( 1970) (10) Microprocessor — Faggin, Hoff&Mazor – Intel 4004 COMPUTER TRAINING CENTER 9717717164

                            PART -2  ( UNKNOWN FACTS) A) Charles Babbage in 1833 invented all the parts that are now used for the modern computer. But the first ‘modern’ computer was invented only 120 years later.   EBEES CORP B)Z1 was the first fully operational digital computer developed by Konrad Zuse in 1936.  In 1939 , he created the Z2 as the first  electro-mechanical computer in the world. While Charles Babbage is being considered as the “ father of the computer ”, Zuse can be considered as the inventor of the “modern computer”. C) The first disk drive to use removable media was the IBM 1311 . You may not believe, but as you can see in the image below, it resembles the look of a washing machine. It was quite big, yet it had a storage capacity of fewer than 5 megabytes.    DISK DRIVE D) Amazon.com did not start ...

UNKNOWN FACTS  1.  WWW   ( Full Form = World Wide Web       Short Form = W3 Consortium ) WWW is invented by " TIM BERNER LEE "  Tim Burner Lee invented the internet in 1989 . By now there are more than 17 billion devices connected to the internet. 2.  It’s believed that the first computer virus released in the world was a boot sector virus, which was created in 1986 by the Farooq Alvi brothers . It was designed to protect their research work. AUTOCAD COURSE /9717717164 3. The first computer mouse was invented by Doug Engelbart in around 1964 and it was made out of wood . 4.   Only 8% of the world’s currency is physical money , the rest only exists on computers. 5.   30,000 websites are hacked every day. 6. The Dirty Dozen was the name of a 12 man engineer group who developed the first IBM computer . 7.  ENIAC was the first electronic computer, which weighed around ...

  OUTPUT DEVICES Output Devices are those devices of the computer system that supplies information or result either in the form of hardcopy (printer) or softcopy (Monitor). Now, What is Hardcopy & Softcopy? A soft copy (sometimes spelled " softcopy ") is an electronic copy of some type of data, such as a file viewed on a computer's display or transmitted as an e-mail attachment. Such material, when printed, is referred to as a hard copy . Some of the common Output Devices are as follow:- 1. Monitor  2.Printers 3.Plotters 4.Multimedia Projector  5.Speech Synthesizer 6.Speakers Project Management Some brief about the above: 1. Monitor (V.D.U) Monitor is also known as V.D.U (Visual Display Unit) .It look alike a television and its size is measured in term of diagonal length of the screen. Monitors are available in 9" , 12", 14" ,15" ,17" , 19" & even in 21" . It shows text , ...

                                                What is Input Devices? Input Devices are used to enter data or information into the computer or other data processing devices. Here are some Devices as follow: Keyboard   Mouse Joystick  Scanner  Voice Input and Recognition  System Optical Mark Reader  Magnetic Ink Character Recognition  Web Camera  Video Camera  AnyProject Management Courses Short Note over Input Devices :  Keyboard Keyboard is the main input device .Programs and any type of data entered into the computer through it . keyboard is attached to the computer, may be it is wired or wireless .A keyboard is similar to the keyboard of the typewriter. It contains alphabets, numbers, special characters ,arrow keys. When keys are pressed it give electric sign...