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Introduction to Operating System by 13745 on Mon Mar 30, 2015 1:58 pm
Introduction to Operating system


Operating system is software that works as an interface between a user and the computer hardware.

There are following some examples of OS.
d) MS WINDOWS -98/XP/Vista
e) Windows NT/2000,
f) Window 7 & 8 etc.

•OS performs the basics tasks such as receiving input from keyboard, processing instructions and sending output to the screen.
•OS manages overall activities of computer and input/output devices attached to it.
•It is software that is required in order to run application programs and utilities.
•It works as a bridge to perform better interaction between application programs and hardware of computer.
•It manages t...

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What a programmer should know about memory? by 13745 on Tue Mar 31, 2015 4:07 pm
The computer memory is a temporary storage area. It holds the data and instructions that the Central Processing Unit (CPU) needs. Before a program can be run, the program is loaded from some storage medium into the memory. This allows the CPU direct access to the program. Memory is a need for any computer.
Memory is primarily of three types.
a) Cache Memory
b) Primary Memory/Main Memory
c) Secondary Memory


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Practical approach to Object Oriented Programming by 13745 on Wed Apr 01, 2015 1:57 pm

Object-oriented programming:-
Object-oriented programming language (OOPL) is a high-level programming language based on the object-oriented programming (OOP) model.
OOPL incorporates logical classes, objects, methods, relationships and other processes with the design of software and applications.
2.C language
5.PHP etc.


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SCHEDULERS AND ITS TYPES by bina satti on Wed Apr 01, 2015 7:44 pm
Scheduler is a computer programming system consisting of software design pattern. It helps in execution of concurrent assigned helps in multitasking because now a days due to increase in advancement such multitasks are acquired. The read/write lock pattern is implemented using scheduler pattern to make sure fair scheduling, Schedule is basically completeness of execution per unit time known as throughput, latency (specifically the turnaround time, as a total time between submission of a process and its completion and the response time, as a time from submission of a process to the first time it is scheduled. fairness (equal CPU time to each process
Process scheduler
The process scheduler is a part of the operating system that decides which process runs at a certain point in is a cooperative scheduler as we can pause, move on and can start new process....

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خونی چاندوں کی نمود، صہیونیوں کا پانچ صدیوں سے انتظار غلام محی ا by UCERD.COM on Wed Oct 08, 2014 4:24 pm
زمیں، سورج اور مریخ ایک ہی قطار میں آ جاتے ہیں۔ اس ترتیب کے نتیجے میں چاند کا رنگ خون کی طرح سرخ ہو جاتا ہے۔ فوٹو: فائل
اسلام آباد: سالِ رواں کے آغاز میں جب ماہرین فلکیات نے پیش گوئی کی کہ 15 اپریل سے آسمان پرسرخ چاند گرہن کا آغاز ہونے والا ہے تو ساتھ ہی کار پوریٹ عالمی میڈیا میں نجوم کے ماہرین کے بیانات بھی آنے لگے۔

ان کا کہنا ہے کہ اس طرح کا گرہن اس وقت وقوع پذیر ہوتا ہے جب زمیں، سورج اور مریخ ایک ہی قطار میں آ جاتے ہیں۔ اس ترتیب کے نتیجے میں چاند کا رنگ خون کی طرح سرخ ہو جاتا ہے۔ بعض لوگ اس طرح کی خونی رنگت والے چاند کے نظارے کو دنیا کے خاتمے اور حضرت عیسیٰ ؑ کے ظہور کی نشانی قرار دیتے ہیں لیکن ایسے گرہن کے بعد جب چاند سرخ ہو جاتا ہے تو اہل یہود اس کو دنیا کی بادشاہت حاصل ہونے کی سنہری نوید قرار دیتے ہیں۔ خونی چاند گرہن مکمل چاند گرہن کو کہا جاتا ہے۔

امریکی خلائی ادارے ناسا نے بھی سال 2014 اور 2015 میں ’’بلڈ مون‘‘...

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