Nama fail tak sah 

Dalam OS MS-DOS termasuk MS-windows, ada beberapa
nama simpanan yang pengguna tidak boleh gunakan 
untuk menamakan fail atau folder. Nama2 ini khusus untuk
pemacu alatan2 sistem.
Nama2 tu macam kat bawah ni siap dengan penjelasan sekali.
 
Nama    Fungsi
   ----    --------
   CON     Papan kekunci dan paparan
   PRN     Alatan senarai sistem, biasanya pot bersiri
   AUX     Alatan bersekutu, biasanya pot selari
   CLOCK$  Jam waktu sebenar sistem
   NUL     Alat bit-bucket
   A: - Z: Huruf pemacu
   COM1    Pot perhubungan bersiri pertama
   LPT1    Pot pencetak selari pertama
LPT2    Pot pencetak selari kedua
   LPT3    Pot pencetak selari ketiga
   COM2    Pot perhubungan bersiri kedua
   COM3    Pot perhubungan bersiri ketiga
   COM4    Pot perhubungan bersiri keempat
 
Disamping itu, terdapat juga aksara2 khas yang tidak boleh
digunakan sebagai sebahagian dari nama fail. Senarainya adalah: 
 
\ / * : ? " < > |
 
Aksara2 tersebut mempunyai fungsi tersendiri di dalam perjalanan
sistem pengoperasian.
Kalau nak guna jugak, apa jadi?
Cubalah... Silakan..





































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