- DISADVANTAGES OF SERIAL PROCESSING OPERATING SYSTEM PC
- DISADVANTAGES OF SERIAL PROCESSING OPERATING SYSTEM PLUS
TYPE:- Allows the user to see the contents of a file. File name should not be greater than 11 characters out of which 8 characters are for the name and 3 characters are for the extension.Įxtension is optional : Eg : C : / > copy con ramI am a good boy1. Saves the contents of file by pressing ctrl +z key combination at the last time of the file. copycon : – The purpose of this command is to create a file. Syntax : – C : / > VerMS – Dos version 6 : 20Copy card. VER : It displays the version of DOS being used currently. Syntax : – C : / > timeCurrent time is 12 : 39 – 48 : 36 pEnter new time : –ĥ. Time : – It displays the current systems time user can also change existing time with new time by using this command. Syntax: – C : /> dateCurrent date is: sat 3-25-2015Enter of new date (mm-dd-yy):-Ĥ. User can also change the current date with new date by using this command. doc-will display all files having extension doc and having any first three letters and fourth letter is R.ģ) Date: – It displays the current system date. * ˜- will display all files having any first character and remaining name has given in command.Ģ) C : / > dir ? R.
Question mark: – This wild card represents a single character that a group or files have in common.ġ) C : / > dir ac. C : / > dir R*.* – will display all files stored with first character R.Ģ. C : / > dir *.* – will display list of all files and directories. 2. Asterisk:- (*) The wild word will match all characters. 1.
Wild cards: – It is the set of special characters wild are used with some commonly used DOS commands there are two types of wild cards.ġ. extension – It displays the information of specified file. C : / > dir/d: –It display list of directories or files in drive D d. C: / > dir/w- It displays the list of directories or files width wise c. C : / > dir/p – It displays the list of directories or files page wise b. Copyġ) Cls :- The purpose of this command is to clear the display screen and redisplay the Dos prompt at the top left corner of the screen.Ģ) Dir:- It displays the list of directories and files on the screen. Some commonly used DOS internal commands areġ Cls 2. If you are using an operating system with multiple user accounts, the directory may also be referred to as a home directory.ġ.Internal commands: The internal commands are those commands that are automatically loaded in the memory. When looking at this overview, the C: drive is considered the current directory and root directory because there is nothing beneath it and you can’t go back any further. In the picture to the right is an example of the tree command output that shows all the local and subdirectories (e.g., the “big” directory in the cdn directory). Directories are found in a hierarchical file system, such as Linux, MS-DOS, OS/2, and Unix. The following special characters: $~! # % & – ( ) ‘ _ ^ĭot (apart from the dot that separates the name and the extension)Ī directory is a location for storing files on your computer.
DISADVANTAGES OF SERIAL PROCESSING OPERATING SYSTEM PLUS
In MS-DOS a file can be any size, however the file name is more restricted, it can only have a maximum length of 8 characters plus 3 for the extension.įurthermore, the files can only contain the following characters: When you run a program, MS-DOS processes the data stored in the file and passes it to the system.
DISADVANTAGES OF SERIAL PROCESSING OPERATING SYSTEM PC
MS-DOS was the main operating system for IBM PC compatible personal computers during the 1980s and the early 1990s, when it was gradually superseded by operating systems offering a graphical user interface (GUI), in various generations of the graphical Microsoft Windows operating system.MS-DOS Collectively, MS-DOS, its rebranding as IBM PC DOS, and some operating systems attempting to be compatible with MS-DOS, are sometimes referred to as “DOS” (which is also the generic acronym for disk operating system). MS-DOS acronym for Microsoft Disk Operating System) is an operating system for x86-based personal computers mostly developed by Microsoft.
0 kommentar(er)
