Basics

What’s on the Back of a Computer Case?

The Back of a Computer (Ports)

When you look at the back of a computer, you may feel a bit overwhelmed by all the…

The Inside of a Computer

Now that you know what’s on the outside, let’s crank open that mysterious computer case and look inside.…

Types of Operating System

Real-time Operating System: It is a multitasking operating system that aims at executing real-time applications. Real-time operating systems…

On line Real Time Processing

On Line Processing: In on line processing the transaction data is directly sent to secondary on-line storage devices…

Time Sharing

In time sharing, it is possible for multiple users to run more than one application at the same…

Multiprocessing

In multiprocessing systems, two or more CPUs are connected together. Therefore it is possible to execute instructions from…

Multiprogramming

In multiprogramming the CPU is capable of running more than one program concurrently. More than one programs can…

Testing, Documentation Maintenance

Testing (Validation): The program is tested on a number of suitable test cases. A test plan of the…

Debugging

At this stage the errors in the programs are detected and corrected. This stage of program development is…