Imran Zafar

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Basic Components of Computer System and Instruction Execution Cycle

31st January 2012
A computer system consists of various hardware components. Each component plays a specific role in computer system. These components are interconnected to each other in such a way so that the computer can perform its functions. Processor: Processor ... Read >

Batch Operating System and Timesharing Operating System

31st January 2012
Batch Operating System: In early computer systems, the user did not interact directly with the computer system. The data and programs were first prepared on the input media such as punched cards or punched tape. The data and programs prepared on the pu... Read >

Components of Operating System

31st January 2012
A brief description about the components of operating system is given below. 1. Process Management: The most important task of operating system is to manage and monitor different processes executing in the computer. Generally, a program in execution... Read >

Single-User and Multi-Programmed Batch Operating Systems

31st January 2012
Single-User Operating System: Single user operating' system allows a single user to access the computer at a time. This type of operating system is mostly used on computers having single processor such as PCs. In single user operating system, the CPU r... Read >

Introduction to Operating System and Functions of Operating System

31st January 2012
Operating system is the most important system software. It is a collection of system software and is stored on the storage device such as hard disk, CD-ROM, floppy disk (or in ROM). When a computer is switched on, the operating system is transferred from ... Read >

Data Transmission Modes and Its Types

16th January 2012
The way in which data is transmitted from one place to another is called data transmission mode. It is also called the data communication mode. It indicates the direction of flow of information. Sometimes, data transmission modes are also referred to as d... Read >

Data Processing and Processing Activities

16th January 2012
The processing of converting the raw material into finished goods requires some processing. Same way, to convert the data into information, the processing of the data is processing. Data is important because, data is not useful until it is subjected to a ... Read >

Data Communication and Types of Data Transmission

16th January 2012
Communication means the exchange of information or messages. The process of transferring data from one location to another is called Data Communication. In this process, data is transmitted electronically from one location to another by using standard met... Read >