Computer Operating Systems

Computer Operating Systems

Computer operating systems have evolved over the years to become one of the most integral software components of a computer system. Without the operating system, being able to use a personal computer would be much more difficult. The operating system allows the user to easily and more successfully navigate the computer system without having to know complicated commands and requests.

In the early days of computers, operating systems weren’t part of the overall system configuration. They came about after the super computers had already been invented. Before operating systems, information was input into the computer with punch cards. The system wasn’t very efficient and required knowledge of punch card machines just to get the desired information from the computer.

Then some programmers had a vision. They thought it would be wonderful if everyone could use a computer without having to know about complicated programming language. They began designing the first computer operating systems, and soon found success.

Today, there are many computer operating systems both already developed as well as currently in development. Most of these operating systems are designed solely with the user in mind. They allow computer operators to simply load programs into their computers and then navigate their system with the point of a mouse and the click of a button.

All computer operating systems have certain processes that they perform “behind the scenes” so that the user doesn’t really know that they are happening. This is called multi-tasking and makes it much easier to use a computer without having to manage resources manually. The operating system does it for you!

Your computer operating system will manage your random access memory, your hard disk memory, the scheduling of tasks, and so much more! It will provide a level of security to your computer so that you don’t have to worry about an outside party gaining access to any of the information on your computer. It will also navigate the various programs that are on your computer when you want to open those programs. Just tell the operating system, and it’ll take care of the rest!

The most popular operating systems today are Microsoft Windows and Apple’s Mac OS X. The technology for most computer operating systems came from these two computer giants and other operating systems have evolved from those. Linux and GNU are two other operating systems that are beginning to take hold in popularity, although they are mainly geared toward the mainframe and network system market.

The computer operating system brought personal computers into our homes and businesses and made it easy for anyone to use a computer. Without the computer operating system, using a computer would remain in the dark ages.

Tips For Selecting The Right Notebook Computer

Tips For Selecting The Right Notebook Computer

These days it is very common to find people taking their notebook computers with them everywhere they go. Having one can be very convenient and make working on the go less of a hassle. It can be confusing though to figure out which one you should buy because the market is saturated with different brands and models of notebook computers.

Before you go out and look at notebook computers write down what your needs are. This will help you narrow down your selection. How often will you be taking the notebook computer with you? If you plan to use it often when you travel for work or for other activities you want one with a long battery life and that is very light. You also want one with a good warranty in case it gets damaged.

The size of the screen is important. Nothing is more frustrating than trying to complete work on a screen that is so small you get distracted from what you are trying to accomplish with it. Think about the different features you are going to need for your notebook computer. It doesn’t make sense to pay for features you won’t every use. Some of your options include a memory card and a disk drive.

It is very important to consider the amount of RAM you will need for your notebook computer. You definitely don’t want to be limited in the amount of work you can perform on it because you don’t have enough memory.

Once you have decided all the components of a notebook computer you need you are ready to take a look at what is available on the market that offers those items. You can compare prices as well as read consumer reviews to help you make the right purchase.

Material Requirements Planning (MRP)

Material Requirements Planning (MRP)

The first MRP systems of inventory management evolved in the 1940s and 1950s. They used mainframe computers to explode information from a bill of materials for a certain finished product into a production and purchasing plan for components. Before long, MRP was expanded to include information feedback loops so that production personnel could change and update the inputs into the system as needed. The next generation of MRP, known as manufacturing resources planning or MRP II, also incorporated marketing, finance, accounting, engineering, and human resources aspects into the planning process. A related concept that expands on MRP is enterprise resources planning (ERP), which uses computer technology to link the various functional areas across an entire business enterprise.

MRP works backward from a production plan for finished goods to develop requirements for components and raw materials.MRP begins with a schedule for finished goods that is converted into a schedule of requirements for the subassemblies, component parts, and raw materials needed to produce the finished items in the specified time frame, Thus, MRP is designed to answer three questions: what is needed? how much is needed? and when is it needed?

MRP breaks down inventory requirements into planning periods so that production can be completed in a timely manner while inventory level and related carrying costs are kept to a minimum. Implemented and used properly, it can help production managers plan for capacity needs and allocate production time.