Computer Tech Info

 A mainframe computer is a powerful, centralized system built with massive memory capacity, extensive storage, and multiple high-grade processors. These machines are engineered for ultra-fast, high-volume data processing—making them far superior to standard computing systems. Mainframes excel at running multiple complex applications simultaneously, making them vital for large-scale organizations and sectors that rely on real-time, secure data handling. This article will help you to learn about the advantages and limitations of mainframe computers Importance of Mainframe Computers Mainframe systems are essential for institutions and enterprises that require rapid, uninterrupted data processing. Their significance continues to grow across: Large enterprises Scientific research organizations Government agencies (e.g., census data) Statistical analytics High-volume transaction environments These systems are built to manage billions of transactions per second with e...

  Personal Area Network (PAN) offers to make connections of multiple devices or other equipment under the single user’s environment within 10 meters to 30 feet. These types of connections can be done wired or wireless. PAN network enables with few   computer devices , telephones, video game consoles, electronic devices, laptop, PDAs, printers, smart phone, and other wearable computer devices. Personal Area Network Diagram Initial PAN a rchitecture  was designed by Thomas Zimmerman of the Massachusetts Institute of Technology (MIT) Media Lab, but after that IBM’s Almaden Research Lab developed PAN (Personal Area Network) concept. Types of Personal Area Network There are two types of  Personal Area Network  such as  Wired PAN and Wireless PAN . In wired PAN (Personal Area Network), physical wires can use like as USB or FireWire. Wireless PAN (Personal Area Network ) — In this network, wireless connections established like as infrared, ZigBee, Bluetooth and...

Multitasking operating system provides the interface for executing the multiple program tasks by single user at a same time on the one computer system. For example, any editing task can be performed while other programs are executing concurrently. Other example, user can open Gmail and Power Point same time. Types of Multitasking Operating System There are three  types of multitasking operating system , including: True Multitasking True multitasking OS is the capable for executing and process multiple tasks concurrently without taking delay instead of switching tasks from one processor to other processor. It can perform couple of tasks in parallel with underlying the H/W or S/W. Preemptive Multitasking Preemptive multitasking is special task that is assigned to  computer operating system , in which it takes decision that how much time spent by one task before assigning other task for using the operating system. Operating system has control for completing this entire process, ...

 Batch processing system works as an operating system . Batch processing system means to grab all types of programs and data in the batch form then proceed to process. Main motive of using batch processing system is to decrease the set up time while submitting the similar jobs to CPU. Batch Processing techniques was implemented in the hard disk and card readers as well. In this, all jobs are saved on the hard disk for making the pool of jobs for their execution as a batch form. Batch monitor is started for executing all pooled jobs, after reading them. These jobs are divided into groups, and finally precede same jobs to similar batch. Now all batched jobs are ready to execution one by one without wasting more time, and due to this system enhance the system utilization while decrease the turnaround time. Diagram of Batch Processing Operating System Functions: All jobs are executed in the “First Come First Serve” nature. When job is completed its processing, then its memory is fre...