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- Crash course on PCs and DOS
- ===============================
-
- BOOTING UP
- ------------------
- When the PC is switched on it needs to load the operating system
- (such as MS-DOS) into memory, this is called the boot-up sequence.
- The operating system is a special computer program, and without it,
- the PC just won't work. Dos is loaded either from a floppy disk in
- drive A or most commenly from the hard disk.
-
- If you have one floppy disk drive it will be called drive A, if you
- have two, then they are A and B. They can be the same size or different
- sizes. Built into most PCs is a hard disk - a special kind of high
- capacity disk drive that can store a lot of information. You can't take
- this disk out like a floppy, it's fixed. It's called a fixed disk or
- hard disk or hard drive.
-
- If you have two floppies and a hard disk, then the hard disk is C.
- However, if you have only one floppy and a hard disk then they are
- normally A and C - there's no B. When you switch the PC on, it looks to
- see if there is a disk in drive A, and if there is, it tries to load Dos
- from it. If Dos isn't on the floppy disk, you'll see an error message on
- the screen, something like "Please insert a system disk in drive A and
- press a key". You have two options here, either insert a floppy disk
- that contains Dos or remove the floppy disk that is in the drive. If
- there isn't a floppy disk in drive A when you switch on the PC it looks for
- Dos on the hard disk - if you have one. Eventually, you'll end up with
- what's called the Dos prompt.
-
- DIRECTORIES
- -------------------
- You can tell what files (programs, or other information) are stored on
- your disk by typing (in upper or lower case):
-
- DIR
-
- or:
-
- DIR /W
-
- The name of a file can be up to eight characters long, followed by a full
- stop and then three more characters, like TREE.COM. Some characters on the
- keyboard are special and can't be used in names, * and ? are two.
-
- Generally speaking, any file which ends in .EXE, .COM or .BAT is a program
- that can be run by typing in its name. You don't need to enter the .EXE, .COM
- or .BAT - just the first part of the name.
-
- If you think of the disk as a filing cabinet into which you can put files,
- you can imagine how untidy it would become if you just threw everything in.
- You can make drawers and put files of a similar nature in specific drawers.
- They aren't called drawers, of course, but directories (sometimes called
- folders). There are probably some directories already on you disk and these
- are shown when you type DIR with a <DIR> after their name. DOS is a very
- common directory as it is used to hold many files and programs that both you
- and the operating system need to work.
-
- To change to a directory type CD followed by its name like this:
-
- CD DOS
-
- and to find out what files are in it, type:
-
- DIR
-
- To change back to the directory you just came from, (what's called the
- parent directory) type:
-
- CD ..
-
-
-
- There can be directories within directories. To change to the parent of all
- directories, type:
-
- CD \
-
- To make a new directory you use the MD command followed by the name (up to
- eight letters), like this:
-
- MD GAMES
-
- This will create a directory called GAMES into which you could put all your
- games. You can change to this new directory with:
-
- CD GAMES
-
- BASIC DOS COMMANDS
- ===================
-
- BEFORE floppy disks can be used with a PC they have to be specially prepared,
- this is called formatting. You format a disk by typing FORMAT at the Dos
- prompt followed by the drive letter, like this:
-
- FORMAT A:
-
- or:
-
- FORMAT B:
-
- Never use C:, only A: or B:. You can copy Dos to the disk so you can boot up
- from it by adding a /S to the line, like this:
-
- FORMAT A: /S
-
- This then often called a system disk. You can copy files from one disk to
- another, such as from C to A using the COPY command. Suppose you wanted to
- copy LETTER.TXT, assuming that you're on drive C, you would type:
-
- COPY LETTER.TXT A:
-
- If the letter was on drive B and you wanted it on drive A, you would type:
-
- COPY B:\LETTER.TXT A:
-
- And if the letter was stored in the DATA directory on drive B and you wanted
- to copy it to drive A and call it MYLETTER.DOC, you would type:
-
- COPY B:\DATA\LETTER.TXT A:\MYLETTER.DOC
-
- A special form of the command is:
-
- COPY A:\*.* C:\
-
- The *.* means every file, so the line above would copy every file on drive A
- (actually the root directory), to drive C.
-
- Text files often end .TXT or .DOC. You can often display these on the screen
- with the TYPE command. It's best used with MORE which s after each
- screenful of text. So, if there's a text file called README.TXT, you could
- read it onscreen by typing:
-
- TYPE README.TXT
-
-
- To delete a file you use the DEL command followed by the filename. If you
- wanted to delete LETTER.TXT, you would type:
-
- DEL LETTER.TXT
-
- Remember that LETTER.TXT might be stored in a directory, and if that's the
- case, you would have to change to that directory. Instead of a name you could
- put *.* and this means every file. It's a dangerous command, but if you
- really do want to delete everything in the current directory, type:
-
- DEL *.*
-
- Because it's so dangerous, you are asked if you are sure you want to do this.
- Type Y if you are, otherwise N to stop immediately.
-
- What to do if the programs on this disk don't work
- ===================================================
-
- DISK SPACE
- ------------
- All the programs on this disk have been thoroughly tested on a variety of
- different PCs, but for one reason or another, they may not work on your
- computer.
-
- One reason is lack of space. When extracted from their highly compressed
- archives the programs on this disk can occupy as much as 4Mb of disk space.
- Before extracting the programs make sure you have sufficient disk space by
- typing at the Dos prompt:
-
- CHKDSK C: /F
-
- The /F parameter will ensure any errors on your hard disk are fixed. One
- point to bear in mind is that SuperStor, Stacker and other disk compression
- utilities fool CHKDSK into reporting more free space than there really is.
- For instance, they may say you have 5Mb free when, in fact, you have only
- 1Mb.
-
- If you don't have a hard disk drive, just twin floppies, format a system
- disk with:
-
- FORMAT A: /S
-
- and switch on your PC with that in drive A (don't worry about being asked
- for the time or date). Put the MegaDisk in drive B, change to drive B with:
-
- B:
-
- and run this menu program again. Many programs require a hard disk drive as
- they are very big, but some programs are small enough to run from floppy
- disks, even low density 5.25in ones.
-
- MEMORY
- -------
-
- Some programs need a lot of free memory. Even though you may have a PC with
- 4Mb or more, the amount free for Dos programs is less than 640k (0.64Mb).
- It's all to do with the way the PC was designed many years ago.
-
- You may need to change AUTOEXEC.BAT and CONFIG.SYS to take out all
- unnecessary drivers, TSRs and other stuff which generally bungs up the
- memory. First copy these two files to somewhere safe, like this:
-
- COPY AUTOEXEC.BAT AUTOEXEC.TMP
- COPY CONFIG.SYS CONFIG.TMP
-
- Now run a text editor like MS-DOS 5's EDIT and load each file in turn.
- Delete any lines which aren't important then save them. Reboot the PC.
- Generally speaking, most lines can be removed, however, don't take out any
- lines to do with disk compression, such as a SuperStor driver.
-
- With MS-DOS 5 and later Dos can be loaded high and drivers and TSRs can be
- put in upper memory. To use these facilities make these three lines the
- first three in CONFIG.SYS:
-
- DEVICE=C:\DOS\HIMEM.SYS
- DEVICE=C:\DOS\EMM386.EXE NOEMS
- DOS=HIGH,UMB
-
- Now replace any DEVICE= commands in CONFIG.SYS with DEVICEHIGH= and if any
- TSRs are loaded in AUTOEXEC.BAT, add an LH followed by a space to the start
- of the line, like this to load a mouse driver:
-
- LH C:\MOUSE.COM
-
- While on the subject of mouse drivers, make sure your is up to date,
- otherwise some software won't work properly. Unless the software
- specifically says don't load a mouse driver, it's a good idea to try it
- with the driver loaded. Many programs benefit from mouse control. It is
- also a good idea to have the mouse line near the start of the file,
- especially if you wish to load it high.
-
- Some programs - mainly games - require expanded memory. You can simulate
- this on 386/486 PCs by changing the EMM386.EXE or EMM386.SYS line in
- CONFIG.SYS. If you want 512k of EMS memory change the line to this:
-
- DEVICE=C:\DOS\EMM386.EXE 512
-
- If you can't get the memory management right, format a system disk in
- drive A with:
-
- FORMAT A: /S
-
- and reboot the PC.
-
- Some programs, like databases and contact managers, need the BUFFERS and
- FILES settings changed. You'll need to edit CONFIG.SYS and either change
- the existing lines or add new ones if they aren't there. These settings
- should be sufficient:
-
- BUFFERS=40
- FILES=49
-
- You'll need to reboot for these changes to take effect.
-
- After fiddling about with CONFIG.SYS AND AUTOEXEC.BAT you may want to
- restore things as they were before. This is easy if you made a backup:
-
- COPY AUTOEXEC.TMP AUTOEXEC.BAT
- COPY CONFIG.TMP CONFIG.SYS
-
- INSTALLATION
- -------------
-
- Some programs can be run as soon as they have been extracted from their
- archives on this disk. Others may need further installation. You'll be told
- in the instructions what's required. Look for a file called INSTALL and
- run it if necessary.
-
- Windows programs nearly always need further installation. You should run
- Windows and then click on Run on the File menu. Type in the drive,
- directory and filename of the program to run - usually SETUP.EXE or
- INSTALL.EXE. Alternatively, click on the Browse button and use the file
- selector to locate the file.
-
- You will sometimes need to install the program icon into a group window on
- the desktop. Click on File,New,Program Item,OK,Browse and then use the file
- selector to find the file. Double click on it then on OK to get back to the
- desktop. You should then see the program icon.
-
- VIRUSES
- ---------
-
- This disk has been thoroughly tested at all stages of production for all
- known viruses. Dr Solomon's Anti Virus Toolkit, Norton Anti Virus, McAfee
- Anti Virus Utilities and Microsoft Anti Virus are always used. It has been
- passed as clear by all of them. However, putting this disk in a PC that is
- already infected with a virus will infect this disk too and may activate a
- virus that has been lying dormant for some time.
-
- DOCUMENTATION
- ---------------
-
- Please set aside some time to read all the available documentation - on disk
- such as README.TXT, MANUAL.DOC, ORDER.FRM or whatever, and in the magazine
- in the disk tutorial pages.
-
- Many programs come with large manuals which contain detailed instructions,
- tutorials and troubleshooting guides. They are often essential if you are
- using these programs for any serious application. A small charge is normally
- made for printed documentation. See the magazine for manual offers.
-
- IF ALL ELSE FAILS
- ------------------
-
- If you really can't get the software working, ring our technical support
- hotline on 01625 858084 out of office hours or ring 01625 878888 between
- 9am and 5pm and ask for the PC HOME Disk Editor.
-
-
- THE DIFFERENT TYPES OF SOFTWARE
- ================================
-
- Public Domain
- ------------------
-
- These are free and you don't have to pay for them. You can copy them and
- pass on the copies to friends. There is nearly always a text file,
- sometimes called README.TXT or just READ.ME, which gives the programmer's
- name and address. Write to him for the latest version or to pass on any
- constructive comments, good or bad.
-
- Shareware
- ----------
-
- Some programs are shareware. They are free for a short period of time,
- usually about a month. If you like the program and intend to carry on using
- it after a month, then you must pay for it. This usually takes the form of a
- registration fee, which also entitles you to the latest version and
- sometimes a printed manual. There is normally a text file, sometimes called
- README.TXT or just READ.ME, which gives the programmer's name and address.
- There may also be a file called ORDER.FRM which you can print out and fill
- in. Use it to order the latest version or manual or whatever is being
- offered. Feel free to copy and pass on the program in it's unregistered form.
-
- Commercial
- -----------
-
- The third type of program is a commercial package - either the full program
- or a special demonstration version. This is copyright and you must not pass
- on copies to friends or sell it. The full package is normally sold with one
- or more manuals, which are sometimes quite large. It's often essential to get
- the documentation as it contains full instructions describing how to use the
- program.
-
- If you have a demonstration version, or a full package that isn't the latest
- version on offer, you can usually upgrade and buy the latest version complete
- with manuals, tutorials and other printed material. We try to negotiate
- special discounts on your behalf. Detail of such offers are usually displayed
- when you either run or install the software in question.
-
-