Category Archives: Computer Parts
Computer Use by Seniors Eases Loneliness
Computer Use by Seniors Eases Loneliness
More and more seniors are catching the ‘computer bug’ and taking the plunge to go online. The active baby boomers have grown up and become active seniors looking to get out and explore the world around them. The Internet and computers in general, have opened the doors to many avenues of entertainment and excitement for these seniors. No longer are they resigned to the playing of shuffleboard or canasta with their friends for their entertainment. Now with the aid of computers and the Internet they can play these games and more over online connections with people from all over the world. While learning to use a computer is still one of the biggest challenges to many seniors, many of them, when they learn to use a computer, cannot believe that they were ever worried about it at all.
Some seniors have expressed nervousness when it comes to learning how to use a computer and interact with others over the Internet. They are doubly proud when they cannot only learn to use a computer but can also manage to send emails and use computer programs without any outside help at all. While some seniors may have had some experience with computers in their past employment, most are learning the basics of computer use for the first time from the ground up. It is quite an ordeal at first for many people who find it all a bit overwhelming. This quickly passes though as they learn the basics very quickly and can see basic results after only a few lessons.
Computer use among seniors has proven to be very beneficial to them in many ways. It gets them active again in something. While using a computer is not the same thing as doing exercise for the body, the use of a computer is a very stimulating way for them to exercise their most important muscle – their brain. By keeping mentally active, many seniors find that they are not lonely any longer and they have much more that they can accomplish with the aid of a computer. Not only can they use computer programs to help them work on any hobbies they have, but the Internet can also help them to stay in touch with others who share in their hobby. Staying in touch with family and friends by way of email is another great way to help seniors feel connected to the lives of others and to the world around them. By staying in close contact, they find more purpose in their old age.
Some seniors even become competent enough with their computer usage that they can take on part time jobs doing simple data entry for businesses. They can also help to teach other seniors about the benefits of learning to use a computer and the amazing world of the Internet. Many seniors may have only heard about the millions of web sites out there that have so much information that they can access easily. For many seniors it is like turning on a light that shows them what they have been missing all these years. They become passionate about their search for knowledge with computers and the Internet. The sense of isolation is immediately lifted the very first time they send and receive their initial email message to someone they know. Whether the person is across the country or just across the street, the excitement is the same. They soon learn to feel part of the world again and can take part in many more conversations as their knowledge about computers and the Internet grows.
Being able to reconnect with old friends that they have not talked to for years is a very big deal for these seniors. They can also encourage each other to learn more as they go through many of the same things together while learning about computers and the Internet. Many seniors with hearing problems find it much easier to email someone rather than try and talk to them on the telephone. Seniors who are grandparents find the Internet a great way to stay a part of their grandkids lives. By sending emails and talking over everyday events, the family grows closer and stays closer as well. By using the Internet, many seniors have found friends with common interests, whether those interests are hobbies or health matters they share, the excitement at being able to message someone and have them chat back to you in nearly real-time is very fun for these seniors.
How Do Computers Work-They Are In Everything
How Do Computers Work-They Are In Everything
The modern is run on computers. While most people may be aware of a home computer, and some idea that cars and a few other things; most people don’t realize that almost anything that runs on electricity or batteries probably has a computer of some kind embedded in it. It’s easy to rely on computers…until they don’t work right. All of a sudden we have a new-found appreciation for them and it’s then that we wonder how do computers work.
Let’s start with your home computer as knowing how that works will help you understand other types of computers. When people talk about their personal computer, they are referring to a machine that is made up of several computer parts and has an operating system that allows a human to make the computer do what they want it to do.
On the surface, your personal computer operates in the same fashion as those found in other devices. It really comes down to the purpose each specific computer is going to be used for. In other words, all computers are basically the same thing but the device they are being used in determines which functions the computers need.
The PC, as one example, is a machine that is built around a microprocessor. This processor tells each component what to do based on the instructions you give it. These instructions can vary from something as simple as clicking the mouse, to something as complicated as programming. So, the microprocessor is the primary answer to the question of how do computers work.
Where a computer professional (or a knowledgeable amateur) will be able to build their own computer from all of the various parts, the vast majority of us want to take it out of the box and plug it in. If everything goes well, then we don’t have any real reason (other than curiosity) to wonder how they operate. That being said, having some idea can help you to troubleshoot problems if any should come up.
Your first hint as to how they work can be noticed when you first take it out of the box. You will have the main unit that you plug your keyboard and monitor into, the software, and the items that allow you to input information. The main unit contains all of the “guts” and this is where the virtual magic takes place.
Here’s a basic rundown of what happens. You input information (either through the keyboard or the mouse) and that sends a signal to the processor. The processor determines what your input is; such as a left-click on the mouse, pressed the shift key, typed in a number, opened a menu, or anything else. It then has to figure this out in the proper context (entering a website address in a text document is not the same as entering it to visit a website). Once it does it sends the commands to the proper parts of the computer. Those parts do their thing and relay their signal back to the processor. The processor then figures out what to do with that information and sends the information to your computer monitor. All of this takes place in milliseconds, making it appear as though it is in real time. This is a somewhat simplified answer to how do computers work, but it’s a good start.
The Past And Present Of Computers
The Past And Present Of Computers
Computer (computador) is an appliance which can manipulate data in accordance with a list of instructions. It is a type of data processing system.
Today the computer (computador) has become indispensable in every household and comes in numerous physical forms. The first modern day computer was developed in the mid-20th century, though the concept of computer (computador) and various similar machines existed before. It actually started in 1837, when `The Analytical Engine`, the first fully programmable mechanical computer, was designed by Charles Babbage.
The Earlier versions were huge and bulky and used up a whole room. The device EDSAC (Electronic Delay Storage Automatic Calculator) was one of the very first computers that could implement the stored program architecture. In comparison to them, modern computers (computador) have tiny integrated circuits and are much better in terms of capacity and speed as well as accuracy. Today`s tinier version can even fit in your wrist watch and are powered from the watch battery. Personal computers can be found in almost every house today and in various forms. They are in fact the icons of the information age.
What makes computers (computador) highly versatile and distinguishable from other appliances is that it can be programmed. A calculator can only calculate, just like a washing machine can only wash, but a computer can be programmed to do any kind of job. Software programs are a list of instructions that can be stored and executed by the computer.
A general computer (computador) has four major sections, the arithmetic and logical unit or ALU, the control unit or CU, memory and the interface for input and output devices. These parts of computer are interconnected by busses. The ALU, control unit, registers, and the interface for input and output devices are collectively known as the central processing unit or CPU. The Early CPUs used to be composed of different separate components, however since the 1975; the CPUs are being constructed on a single integrated circuit, the microprocessor.
The ALU is for arithmetic and logical operations of the computer while the control unit is for directing the various parts of a computer (computador). Its job involves reading and interpreting the instructions of the programs one by one and converting them into control signals for operating other parts of the computer.
The earlier version of computer (computador) used Magnetic core memory but today it has been replaced by the semiconductor memory. The main memory of Computer is divided in two parts, RAM or random access memory and ROM or read-only memory. RAM can be written and read anytime through CPU commands. On the other hand, ROM is pre-loaded with software and data that never changes, and it can be only read by the CPU.
I/O is hardware by the means of which a computer(computador) can receive information from the outside world and also sends back results. Common input devices are the keyboard and mouse. While common output devices include monitor and printer. There are some devices that serve as both input and output devices like Hard disk drives, optical disc drives, floppy disk drives etc.
Internet has literary changed our lives. Today people can search all types of information on various subjects, advertise their company or products pass information to a large group of people and do much more merely by a few clicks of the mouse. Whether you want to search a new home or compare prices of the latest mobile or fill up your college form or read the latest Harry Potter book, everything can be done on the Internet through your computer.
With increase of computers (computador) and its uses, an increasing number of professions involving computers have also developed. Computer-related professions include Electrical engineering, Nanoscale engineering Telecommunications engineering, Software engineering, Web design, Desktop publishing and Optical engineering.
Programming CNC Machines With G-Codes
Programming CNC Machines With G-Codes
Ever since the industrial revolution started, the demand to create precise instruments and products is an important factor in large scale manufacturing. Belts, screws, Drills and all movable parts needed to create other products in the assembly line must all be exact and compatible, thus extra care must be taken in order to ensure that all moving parts match perfectly. Computer Numerical Controlled programming has become an extremely important part of this process.
Computer Numerical Controlled Machines are useless without any programming. CNC’s rely on pure hard codes in order to execute commands that the Machine Operator wants to do, therefore not only is it needed to learn the mechanics of the whole Computer Numerical Controlled Machine but it is also at the utmost importance that the Machine operator knows how to communicate with the machine, and that is by using G-codes.
Preparatory code/ functions or much commonly called as G-codes are functions in the Computer Numerical Control programming language. The G-codes job is to manage the position of the tool as well as control the step by step commands during the actual work. Basically the G-codes are the most important part of the Computer Numerical Control Programming algorithm.
There are other codes involved in the programming of CNC’s such as M-codes that manages the machine, T-codes for managing the tools, and F-codes for the tool feed and tool speed controls. All of these codes are created in a Computer Aided Manufacturing (CAM) software.
G codes as well as the others use the RS-274D as the recommended standard for the Computer Numerical Controlled Machines. This standard was developed by the Electronic Industry association during the 1960’s. These standards provide a basis for the creation of Computer Numerical Controlled Programs.
First designs of these standards came from punched paper tapes as the medium standard for data interchange, but now ASCII character bit patterns are the standard for the representation.
G-Codes
Lets discuss the g-codes further, as what I have said earlier G- codes constitute only a part of the Computer Numerical Control Program, in the whole programming algorithm, they are denoted by the letter G, Basically it is a code telling the machine what kinds of actions to perform in a step by step basis, examples of these actions would be rapid move, controlled feed moves that would bore holes, a work piece cut routed to a specific dimension, change a pallet, and set a tool information such as offset.
After creating each part of the codes, the algorithm is compiled in the Computer Aided Manufacturing (CAM) software. The CAM software basically use translators called post processors to output the code optimized for a certain machine type. Often times, post-processors are often used to allow users to enable further customization.
G-codes can also be used to create outputs for Computer Aided Design systems used to design printed circuit boards (PCB). Any software must be customized for each type of machine tool that it will be used to program. Some G-codes are written by hand for volume production jobs.
Some Computer Numerical Controlled machines use conversational programming. Conversational programming is an easier way to program CNC machines because it is more “user friendly” because it uses a wizard like program that hides the G-codes into plain view. Some Popular examples of this kind of CNC machines are the Southwestern Industries’ Proto TRAK, Mazak’s Mazatrol, and Mori Seiki’s CAPS conversational software.
Conclusion
With these kinds of further sophistication in programming Computer Numerical Controlled Machines, it is expected in the future that programming would be much easier for its machine operators.
Related Computer Part Articles
5 Desktop Computer Hardware Myths Exposed
5 Desktop Computer Hardware Myths Exposed
The big boys in the computer industry want you to continue thinking the way you are. The major desktop computer manufacturers thrive on consumers lack of knowledge and old ideas about desktop computers and computer hardware to drive sales of new desktop computers.
It works in their favor to keep these myths alive, because their business depends on it. So what are they?
Myth 1: You need top of the line computer hardware
Maybe some years ago this might have been true with older computer hardware, but times have changed. When computers were much slower than they are now, the latest version of any computer hardware increased speeds noticeably and allowed new possibilities from your desktop computer.
Those increases from computer hardware no longer yield such a huge increase in performance. With the basic uses of the desktop computer set and been in place for a while now, speed increases no longer result in real world benefits for most desktop computer users.
What was great computer hardware last year is still good enough now.
Myth 2: Computer hardware is the domain of Geeks
When personal computing was coming into its own, you really did need to be a Geek to know what was happening. For those old enough to remember, imagine life without Windows and hacking away at the command line, as used to be the case. Some still do, but I wouldn’t want to do that again.
Desktop computers are such commonplace that the basics of computer hardware can be understood and researched with the minimum of hassle. The ball is on the consumers side of the court. You no longer need to be a geek, just a little knowledge that is now readily available.
Myth 3: A faster desktop computer will speed up the Internet
Possibly. If you are running 5-year-old computer hardware this might be the case. But the real reason for the increase in speed is usually not the computer.
Internet speed is related to your connection speed. If you have a dial up connection, it’s going to be quite slow. When you upgrade your desktop computer and they throw in a cable internet, or DSL package the improved speed is from the faster connection, not the computer. Both cable and DSL can offer more than 10 times the speed of a dial-up connection. The computer has little to do with it.
Myth 4: To speed your computer up, upgrade!
New computer hardware is a very obvious way to speed things up. Even I have gone for new parts purely for this reason.
But it’s definitely not the only way.
Various factors play into overall speed. On a purely physical level, upgrading memory is still a fantastic way to get things to move along a little faster. But apart from this the main things that slows things down on the programs and other stuff you have on the computer.
Over time, as more programs are put on and taken off and changed, things get left behind, and things get forgotten. When your computer starts, many things get loaded into memory and each one of those takes that little bit more of the computers resources. When you switch to a new program and don’t remove the old one, the older one will still use resources.
Myth 5: Big brands are the best
Big brands essentially piece together a computer. They pick and choose the pieces to make a computer package. They also choose some software, give a warranty and then sell it to you.
Dell computer company has become well known for its customer service. This is the best part about Dell computers. The downside is there are limited choices. They pick what goes into the computer, which are often quite expensive parts. They are motivated by the suppliers to put more recent parts into their computers, keeping the prices at the same level and maintaining the “to get more, pay more,” mentality.
You don’t have the power of these big guys, but you have something more. Choice.
Your pick of parts for your desktop computer will allow you to put together something completely tailored to your needs. Put the money where you need it most, into the computer hardware that makes the biggest difference to you, and in the end getting a desktop computer you will fall in love with, rather than despise.