A. The statement is invalid
B. Your file is batch file
C. C drive has command file
D. This is an executable file

A. File name My and drive is A
B. The syntax is not valid
C. File name is A
D. This file is batch file

A. COM
B. Exe
C. Bat
D. All of these

A. pic
B. Picture
C. Picture.pic
D. No extension

A. DOS Shell
B. LAN
C. Novell
D. Windows NT

A. Multitasking
B. Developed by IBM
C. The MS version is XENIX
D. It is modified to be used by supercomputers as well

A. user friendly
B. Single user
C. DOS
D. Time sharing

A. The perform operations on disks only
B. Reside on disks
C. Need 1.4Mb disk
D. Are user friendly

A. Platform
B. Booting
C. GUI
D. Single user

A. Device Driver
B. Anti-Virus tool kit
C. Business Software
D. Operating System