STUDY FREEVR

COMPUTER  BASIC COURSE  (From Beginner to Advance Level) MicroSoft DOS( Disk Operating System) Single user operating system means one time, one person, one work and one CPU. No graphical Environment. Introduction by Microsoft corporation in 1981. Virgins of DOS -- 1.Q, 2.0, 3.0, 4.0, 5.0, 6.0, 6.22, 7.01, 7.10 . But today's we mostly used simulator of Dos i.e Command Prompt which is similar to DOS. DOS Screen  DOS Commands :-- In MS-DOS, there are two ways commands are executed: Internally and externally. An internal command is embedded into the command.com file, and an external command is not and requires a separate file to operate. For example, if your computer does not have the fdisk.exe file and you try using the fdisk command, you will receive a “Bad command or file name” error message. Fdisk is an external command that only works if fdisk.exe, or in some cases, fdisk.com, is present. However, as long as MS_DOS is running o...

COMPUTER  BASIC COURSE  (From Beginner to Advance Level) Notepad, Wordpad and Ms paint Notepad The Notepad is also one of the products in accessories group of Window operating system. It can be used for writing notes and its also used by programmer to write HTML, JavaScript etc codes. It is useful to for editing and storing all text data. Extension name of Notepad is '.txt' (text) Screen of Notepad Menu Bar Option File Bar                     New   (open new file)                          Open   (open existing file) Save    (save new file) Save As  ( save old file with new name or new place) Print Page   (print your page) Exit (close your current file) Edit Bar Undo (ctrl + z means this command allow you to go back to previous action of file) Cut   ( move you...

COMPUTER  BASIC COURSE  (From Beginner to Advance Level) 1- Fundamental of Computer :-- Difference between 32 and 64 bit Windows 32 bit The 32-bit processor was the primary processor used in all computers until the early 1990s. Intel Pentium processors and early AMD processors were   32-bit, which means the operating system and software work with data units that are 32 bits wide. Windows 95, 98, XP are all 32-bit operating   systems. But later on this also work on windows vista and window 7. Note: A computer with a 32-bit processor cannot have a 64-bit version of an operating system installed. It can only have a 32-bit version of an operating system installed. 64-bit processor The 64-bit computer has been around since 1961 when IBM created the IBM 7030 Stretch supercomputer. However, it was not put into use in home computers until the early 2000s. Microsoft released a 64-bit version of Windows XP to be used on computers with a 64-bit proce...

COMPUTER  BASIC COURSE  (From Beginner to Advance Level) 1- Fundamental of Computer :-- What is Computer ? In Greek word, computer means Calculations Computer is an electronic device which store data information and after processing is gives us a meaning full results.  Or Every device is a computer that is electronic, takes some input, then processes and gives output.. Block Diagram of Computer Full Form of Computer C -- COMMON O -- OPERATING M -- MACHINE P -- PURPOSELY U -- USER T -- TRAINING E -- EDUCATION R -- RESEARCH Note:-- This full may varies but if you write this full form still got full marks. Different between CPU and Cabinet ? CPU Microprocessor(CPU) Full form of CPU is Central Processing Unit and its also called Microprocessor Chip and Brain of computer which performing ALU (Arithmatic Logical Unit) operation and communicate with other device to connect it.The mic...