Where are we?
The overall goal of software engineering is
to create high quality software efficiently.
What if you dont though? There are always
pressures and reasons that software isnt
Why do good developers
June 27, 2008
Handout written by Maggie Johnson and Julie Zelenski.
What is a grammar?
A grammar is a powerful tool for describing and analyzing languages. It is a set of rules
by which valid sentences in a lan
Mohamed Zahran (aka Z)
Role of the Lexical Analyzer
Remove comments and white spaces (aka
Read input characters from the source
A process can be thought of as a program
A process execution must progress in sequential fashion
A process will need certain resources-such
as CPU time, memory, files,
MS-DOS written to provide the most functionality in the least
Not divided into modules
Although MS-DOS has some structure, its interfaces and
levels of functionality are not well separated
A process may create several new processes, via a create-process system
call during the course of execution.
Generally, process identified and managed v
The Pthreads API
Initially, your main() program comprises a single, default thread. All
other threads must be explicitly created by the programmer
pthread_create(&threads[t], NULL, PrintHello, (void *)t );
Q2. Suppose that three concurrent processes exist in a system, as described in the following table:
Threads within the Process
T11, T12, T13
Suppose that the system uses round-robin scheduling, and that T11 is runn
Google's next version of Android is called
Google has give a name to its soon-to-be released operating system for its Android
mobile devices: Marshmallow.
The moniker for the 6.0 version of the dominant mobile computing system follows a
CS143 Notes: Introduction and Lexical analysis
David L. Dill
What is a compiler?
The first thing that springs to mind when most people think of a compiler is a programminglanguage translator. For example, the C compiler takes a C progra