Basic Concepts computer system

1.1 Scheme of computer systems

Four basic components of computer systems:

1. Processing

2. Main Memory

3. Input and output devices

4. Interconnection antarkomponen

1.2 Processing

Processors are known as the CPU, the computer serves to control the operation and data processing to be carried out.

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Xcopy command

Xcopy command

Used to determine the contents of the file file / folder copy. The copy command, if this directory is copied, the contents of the directory is included in a file (destination file). While the DOS xcopy will create a new folder and create a copy of the files that exist in the folder of origin to the newly created directory.

Method of writing:

xcopy [drive:] [path] filename / directory_asal

 [Drive:] [path] filename / directory_ purpose

 

Steps of use:

First, type the xcopy command to the command line use.

Pre-Press Enter.

 

Exercise

xcopy data \ datalama \ Data \ dataold \ <Enter>

 

14 Ren / rename

Use a file / directory rename.

Method of writing:

ren [drive:] [path] filename / directory_lama

/

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Dir command

Dir command

Used to display the contents of a directory to the screen.

Way of writing:

dir [drive:] [path] [file what will be in-listings] [/ p] [/ w] [/ a]

[Drive:]: Displays a list (listing) the contents of files in the drive.

[Path]: Displays a list (listing) the contents of files in the path.

[File what will be dilisting]:

Determination of what files are in-listing can use wildcard characters (? & *).

? : Any one character

*: All characters

Example:

? Oba.txt: All files beginning with any letter, provided followed oba.txt

try .*: All files with the extension named try anything.

[/ P] [/ w]: Appearances dilisting file on the screen.

[/ P]: displayed per page (per screen),

[/ W]: displayed sideways, direct the entire file.

[/ A]: All files, including files with hidden attributes, is shown.

Steps of use:

1. Type the command dir to be used in the command prompt.

2. Press enter.

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Setting the file name in DOS.

DOS is a display graphics, single-user operating system and it's a process.

DOS, the default operating system boot process is complete, and if you are using DOS commands after the user is ready to receive, it might seem, C: \> Command line was. Users of DOS command prompt and press Enter at the rear to create and you can instruct it to something.

Windows95 operating system your computer has the Windows version, if more, the following DOS command line can be obtained by using the words:

 

- First method:

O in Windows 98

•  The MS - DOS to run.
•  You can also enter a command on the Start button, select Run  

 

- The second way:

About Windows XP or 2000 Professional

The Click

A   All Programs Accessories Command Prompt to choose

O or the Start button, select Run, type cmd  

 DOS file name

Two parts, namely the configuration file name

•  Name up to 8 characters (alphanumeric, 0-9 and special characters such as: ~, @, #, $,%, ^, &, (,), {,}, -, _,',').

It starts with the alphabet.

It can not be separated by a space.

are characteristically large and small letters (uppercase and lowercase letters are considered equivalent.)

• File Extension

characteristically choice (optional).

 up to three characters.

 In general, the types of files you want to view and use exactly three jaeul. Some competition and expansion of this type of file, forty to two padanana:

•  night backup file.
•  bat is a batch file.
•  Program COM system.
•  exe is an executable program.
•  DAT data files.
•  DOC document file (MS Word).
•  text TXT file.

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