Explain the alphabet and string, Operating System

Assignment Help:

Explain the Alphabet and String

A finite set of symbols is known as alphabet. An alphabet is frequently denoted by sigma, yet can be given any name.

B = {0, 1} says B is an alphabet of two symbols, 0 and 1.

C = {a, b, c} says C is an alphabet of three symbols, a, b and c.

Occasionally space and comma are in an alphabet whereas other times they are meta symbols employed for descriptions. A language is determined over an alphabet. For instance binary language is defined over alphabet B. 

A finite sequence of symbols from an alphabet is known as string or word.

01110 and 111 are strings from the alphabet B above.

aaabccc and b are strings from the alphabet C above.

A null string is a string along with no symbols, generally denoted by epsilon has zero length.

 

 


Related Discussions:- Explain the alphabet and string

How is the NTFS namespace planned, Q. How is the NTFS namespace planned? Ex...

Q. How is the NTFS namespace planned? Explain. Answer: The NTFS namespace is prearranged as a hierarchy of directories where every directory uses a B+ tree data structure to

Pthreads, A thread is defined as an independent stream of instructions that...

A thread is defined as an independent stream of instructions that can be scheduled to run as such by the operating system. Each program contains a number of threads which can be ru

Describe the file system architecture, Describe the file system architectur...

Describe the file system architecture. File System Architecture contains the subsequent components:- Device Driver 1 Device Driver 2 Device Driver 3 Basic fi

Define lazy swapper, Define lazy swapper. Rather than swapping the enti...

Define lazy swapper. Rather than swapping the entire process into main memory, a lazy swapper is used. A lazy swapper never swaps a page into memory unless that page will be ne

What is busy waiting?, What is busy waiting? When strict alteration is ...

What is busy waiting? When strict alteration is done there may take place situation like two processes setting their flag as true. Therefore both of the processes have equal pr

Graph - plotting job, This exercise uses a graph-plotting program ( gnuplot...

This exercise uses a graph-plotting program ( gnuplot ) to convert tabular data into an image. This is a technique that is very widely used to visualize scientific data; with app

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd