Learning Computer Skill Blog

PORTS WORLD  A Computer   Port is an interface or a point of connection between the computer and its peripheral devices. Some of the common peripherals are mouse, keyboard, monitor or display unit, printer, speaker, flash drive etc. The main function of a computer port is to act as a point of attachment , where the cable from the peripheral can be plugged in and allows data to flow from and to the device. In Computers, communication ports can be divided into two types based on the type or protocol used for communication. They are Serial Ports and Parallel Ports . 👉A serial port is an interface through which peripherals can be connected using a serial protocol which involves the transmission of data one bit at a time over a single communication line. The most common type of serial port is a D-Subminiature or a D-sub connector that carry RS-232 signals . 👉A parallel port , on the other hand, is an interface through which the communicat...

                                HISTORY OF THE COMPUTER As we know Earlier Computers were very Costly and only large organisations could afford them. But in recent years, new technologies and advancements in the fields of Information Technology(IT) have made computers within reach of small organisations  and individuals also.  It is hard to believe that there was a time when computers did not exist.Even more so, that the first computers were as big as entire rooms . However, as time progressed, computers  became more powerful and much smaller. The computers are divided into five generations.These are described has follow. 1. First Generation (1940-1956) 2.Second Generation (1956-1963) 3.Third Generation (1964-1971) 4.Fourth Generation(1971-1980) 5.Fifth Generation(Artificial Intelligence) EBEES INFOTRAIN CONSULTANCY SERVICES PVT. LTD.  👉 First Generation ...

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

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 ...

                                                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...