Skip to main content

CHKDSK

CHKDSK
The CHKDSK command checks the status of a selected disk. It is an
external DOS command, and it displays several information. These include:
  • The total disk space
  • The total disk space occupied and the number of files
  • The total disk space either lost or considered unusable by the system
  • The amount of disk space available for use
  • The total amount of memory available in your computer
  • The amount of memory occupied by the operating system and memory-resident programs
  • The amount of memory available for use
DOS Version 4.01 also displays the volume serial number, if one
exists, and disk and memory allocation information. The general form
of the CHKDSK command is:
                                                       CHKDSK D:
where D: is the drive letter holding the disk to be checked. For
example, the command CHKDSK B: performs a disk check of the disk
in drive B. If no disk drive is specified, the logged disk drive is
assumed, as is the case with most DOS commands.

The General Form : When CHKDSK is typed and the Enter key
pressed, a message similar to the following is displayed.

A:\>CHKDSK
                     
                                  362496 bytes total disk space
                                  198544 bytes in 15 user files
                                  253952 bytes available on disk
                 
                                1024 bytes in each allocation unit
                                35% total allocation units on disk
                               248 available allocation units on disk

                              655360 total bytes memory
                              525504 bytes free

DOS version 3.00 and later display directory information. DOS 4.01
provides disk allocation information as shown in the following screen
illustration. The number of bytes in each allocation unit varies with the
disk format. For example, a 1.2 MB floppy diskette has 512 bytes in
each allocation unit.

C:\DOS>CHKDSK
                         
                                     30117888 bytes total disk space
                                    53248 bytes in 3 hidden files
                                    51200 bytes in 20 directories
                                   13377536 bytes in 743 user files
                                   16635904 bytes available on disk

                                 2048 bytes in each allocation unit
                                14706 total allocation units on disk
                               8123 available allocation units on disk

                            655360 total bytes memory
                            525504 bytes free
Labels:

Comments

Post a Comment

Popular posts from this blog

MEM

MEM The MEM command was introduced in DOS version 4.01 and memory information. The MEM command is entered alone or with a modified slightly in MS-DOS 5.00. MEM is used to display system memory information. The MEM command is entered alone or with a parameter. MEM-Displays to all system memory values, including expanded and extended memory values. MEM PROGRAM--Displays programs presently loaded in memory with used and unused memory. You may use /P if you are using DOS 5.00 MEM/DEBUG--Dispiays a list of programs, device drivers, install drivers, and used unused memory. You may use / if you are using DOS 5.00. MEM CLASSIFY (or MEM /C)-Displays programs and cor-responding memory usage. The largest available memory block is also displayed. You may use /C if you are using DOS 5.00. Typing MEM and pressing Enter displays information similar to the following (typical of DOS 5.00): C:\>MEM                   655350 bytes total conventional memory        
Post a Comment
Read more

Filenames

It is important to understand DOS file naming conventions and their use. Here, filenames and some special filename "tools" called wild cards and literals are described. What is a File name?   Every program and data file is given a name to differentiate it from other programs and data files. A program is one or more computer instructions collected into a file. A data file is normally a collection of characters (or data) that make up a document, like a letter, or a database, like a collection of accounting transactions or customer records. Descriptive filenames are normally used. For example, if you create and save a letter to Mom, you might give it the filename MOM.LTR. A letter to Dad could be called DAD.LTR. A word processing program file might have the filename WP.COM. Examine these filenames a little closer. First, notice that each filename is meaningful. This is important if you want to know what is in a file by looking at its name. Obscure filenames are of little u
Post a Comment
Read more

Disk Construction

The various parts of standard 5.25- and 3.5-inch disks are contained in Figure 1-2. A description of each part is also provided. Write protect notch--When covered, prevents information from being recorded on the disk; when uncovered, information can be recorded. Temporary label--An adhesive-backed label allowing the contents of a disk to be identified. Permanent label--When used, contains disk manufacturer and capacity information. Exposed recording surface--Metal oxide surface used to magnetically record data. Do not touch! Protective jacket --House magnetic disk; provides protective cover. Disk sleeve (envelope)--Used to store disks;prevents  accidental contact with exposed surface. Protective slide --Protects magnetic media surface; slides open when inserted into a diskette drive (only on 3 1/2-inch diskettes). Figure 1-2 The Parts of a Floppy Disk Construction : Almost everyone is familiar with audio recording tape. The tape is a long, flexible acetate or mylar strip coated with fe
Post a Comment
Read more