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UNIX
An operating system is the program that controls all the other parts of a computer system, both the hardware and the software. It allocates the computer's resources and schedules tasks. It allows you to make use of the facilities provided by the system.
Unix is a multi-user, multi-tasking operating system. Multiple users may have multiple tasks running simultaneously.
Unix is a machine independent operating system. Not specific to just one type of computer hardware. Designed from the beginning to be independent of the computer hardware.
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VAX
(Virtual Address extension) is an established line of mid-range server computers from the Digital Equipment Corporation (DEC). It followed DEC's PDP-11 in 1978 and also introduced a new operating system, VMS. VAX included a 32-bit processor and virtual memory. Historically, VAX has competed with a number of Hewlett-Packard and IBM computers in the Minicomputer marketplace.
VIRUS
Computer viruses are small programs or scripts that can negatively affect
the health of your computer. These programs can create files, move files,
erase files, consume your computer's memory, and cause your computer not
to function correctly. Some viruses can duplicate themselves, attach themselves
to programs, and travel across networks.Opening an infected email attachment
is the most common way to get a virus.
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WORKSTATION
A workstation is a computer intended for individual use that is faster and more capable than a personal computer. It's intended for business or professional use.it also means any individual personal computer location hooked up to a mainframe minicomputer or server.
WORLD WIDE WEB
The World Wide Web is a global networkof computers that are using the Hypertext Transfer Protocol to communicate and share files with each other
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COMPUTERS THROUGH THE COMPUTER AGE
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