Inventors related to computer 

(1) Key board — Herman Hollerith, first keypunch device in 1930’s

(2) Transistor — John Bardeen, Walter Brattain & William 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 (1963)

(8) Laser printer— Gary Stark weather at XEROX in 1969.

(9) Floppy Disk— Alan Shugart & IBM( 1970)

Source: Internet

Comments

Post a Comment

Popular posts from this blog

Laptop Problems & Solutions 1.Basic Hints & Tips Many of the following may seem like the obvious, but they are often the solution to a problem when your computer appears not to be working. 2.Power Is the computer actually plugged into a working electrical outlet? If plugged into a power strip, make sure it is actually working. Check the LED Power Indicators to see the computer's power status. 3. Connections Check all the cables to make sure that there are no loose connections anywhere. 4. Laptop won't boot up properly. There are many things that can go wrong with the operating system and other software on laptops. Many laptops have customised software installed according to a persons needs. One easy trick is to try to go into Safemode by pressing the F8 key on your keyboard during startup and try to clean up your laptop using antivirus. If the need arises to reformat the laptop, reinstall the operating system from the CDs that were supplied with the laptop. You wi...
Read more
- Computer Awareness Bits - 1) The code for a Web page is written using Hypertext Markup language 2) The first computers were programmed using Machine language 3) A filename is a unique name that you give to a file of information 4) This can be another word for program software 5) Any data or instruction entered into the memory of a computer is considered as storage 6) Which part of the computer displays the work done monitor 7) A series of instructions that tells a computer what to do and how to do it is called a program Hardware is the part of a computer that one can touch and feel . 9) The role of a computer sales representative generally is to determine a buyer’s needs and match it to the correct hardware and software. 10) Supercomputers refers to the fastest, biggest and most expensive computers 11) Executing is the process of carrying out commands 12) The rectangular area of the screen that displays a program, data, and or information is a window 13) The process of a computer...
Read more
12 Most Interesting Facts related to Computer World When the Computer Power is OFF then the time and date is maintains by  CMOS  Battery which is in build located on the mother-board Microsoft founder Mr  Bill Gate  Is using Linux Operating system in his own Personal Laptop . Steve  jobs  and stephen Wozniak previously worked at HP before Apple was founded For every normal web Page there are five Porn Page links ( this is usually called as Linking tree). The very first youtube video was uploaded on april 23rd 2005. The first Computer Mouse was invented by doug engelbart in around 1964 and was made of wood. The memory of first Ram was 46 KB. There are approx. 1.06 billion instant messaging accounts worldwide. Bill gate’s house was designed using a  Macintosh Computer . The more you use the computer machine and faster the  performance . There is more possibilities of harms the PC with dush more than the virus . Viruses only harms ...
Read more