Aircraft Component Repair Frequently Asked Questions
does my “details” column answer this Question??Write detailed specifications for buying a good computer?
A computer, also called a processor, is an electronic device designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations. The main job of a computer is to process data we put in, then either store it or release it as an output for us.
There are three main components of a computer; Hardware, which is the associated physical equipment directly involved in the performance of data-processing or communications functions, Software, which are the programs used to direct the operation of a computer, as well as documentation and Users, who are people that use the software on a computer for various tasks according to their needs.
There are various types of computers, but when one wants to buy a computer for individual use, they should buy a Personal computer (PC). A personal computer is a small computer that can be used independently by an individual user for word-processing, games, e-mail or storage of information. These computers are the kind for everyday use that can be set on a desk, they are very popular. Personal computers range in prices depending on storage and processing abilities and speed. The major components of a PC are:
-system unit (physical apparatus) which consist of the desktop (screen) and the tower (that contains the CPU, RAM, power supply, hard disks and all the slots for connecting all the other components).
- A series of input and output devices and peripherals.
Every pc has a central processing unit (CPU). A CPU is a chip called a microprocessor that’s job is to perform computer processing done by following the instructions of the software or programs to process data and produce information. Every PC has at least one CPU located on the motherboard, which connects all the parts of the computer together. A CPU is also divided into more main parts; ALU, registers or immediate access memory and Control unit. The Control unit directs electronic signals between the main memory and the input and output devices. Input devices allow one to put information into the computer. Some of the many input devices needed for a good computer are a keyboard, Mouse (either laser or ball), a trackball, a touchpad, a touch screen, a light pen, a scanner, a joystick, a microphone, disk drives (including CD-ROMs, DVD-ROMs, floppy disk), a Digital camera and a Video camera. Output devices allow you to view information on your PC or extract information from your PC. Some of the most important products needed in order to be able to see things on your computer screen to the best of your ability are VDU (video display units, or monitors). These monitors allow the work being done on the computer to be displayed, as well as the results of processing, displaying texts, graphics and image forms. The best type of monitor for your personal computer is a flat screen, or flat panel display. This type of monitor is most popular these days. The characteristics of these monitors are color, size and resolution. The more colors it has the better the clarity of the images on your PC will be. The bigger your screen is, the better you will be able to do your work (most screens currently are about 17’’ to 21’’). The higher the resolution, the better quality and clarity of the display or screen will be. The LED Displays (light emitting diodes) is the light that turns on when you press the button to start the computer, this feature is also important in figuring out when there is a problem; the light will trigger a specific flicker showing the presence of an error. Another output device important for a good home computer is a printer. The kinds of printers vary, but the best kind of printer for a personal computer is the colored laser printer. This printer, though expensive, can produce a variety of images and texts. Speakers (or headphones) are another feature that is available for a PC in order for the user to be able to hear sounds. Yet another feature is the removable media devices used to transfer data or documents onto other devices. Examples of these devices are CD-writers, DVD-writers or USB- flash memory cards. Of the devices that are considered both input and output devices are modems and speech synthesizers. Modems are important for access to the internet, the World Wide Web, which connects users to people from all over the world. Each of these devices (both input and output) will allow you to use your personal computer to the best of its ability. It is also important that one buy a good brand name of each of these devices as well as the computer itself, in order to assure warranty and to have the best products available.
I think that your document here does a good job of detailing what you can expect in any good computer. Keep in mind who your audience is, the reader of this may not understand all the terms, you may want to consider rewording some of the more technical parts. For even more help, you may want to post this quesiton in the “education & reference” section.
Some Computer Questions? Computer Geeks only!?
True or False?…..First to get all right will get 10 points….This is for people who have nothing to do….
1.Just as you can learn to drive a car without knowing much about car engines, you can learn to use a computer without understanding the technical details of how a computer works.
2.Computer literacy is the knowing about and understanding computers and their uses.
3.A computer does not always do whatever the instructions, or program, tell it to do.
4.Information processing is a vital activity today because the success of many businesses depends heavily on the wise use of information.
5.The slide rule is considered by many to be the earliest recorded calculating device.
6.Fourth-generation computers witnessed the development of computer networks, wireless technologies, and the Internet.
7.The external hardware components are located inside the main box or system unit of the computer.
8.Storage devices are hardware used to store data on or access data from storage media, such as floppy disks, CD discs, DVD discs, or flash memory cards.
9.To begin to use a computer, the user first turns on the power by pressing the power button, and then the computer displays a prompt for the user to decide the next course of action.
10.There are application programs that help users write their own programs using a programming language.
11.In addition to hardware, software, data, and procedures, the fourth major component of a computer system are codes.
12.Systems analysts design computer systems to be used within their companies.
13.The accompanying figure shows a notebook computer.
14.Notebook computers (also called laptops) are fully functioning computers that open to reveal a screen and keyboard.
15.Tablet PCs can use either a slate or a convertible tablet PC design.
16.A mainframe computer is the standard choice for large organizations that need to manage large amounts of centralized data.
17.Many networks use a network server to manage the data flowing through the network devices and the resources on a network.
18.Once you have an Internet connection, you are ready to begin programming the Web—that is, using a Web browser to view Web pages.
19.Most browsers maintain a History list, which is a record of all Web pages visited in the last few weeks.
20.Satellite communication (more commonly called s-com) is the process of exchanging electronic messages between computers over a network—usually the Internet.
Open ended statements.
5. The slide rule is considered by many to be the earliest recorded calculating device.
There is an Abacus, around long before slide rules.
We have 10 digits on our hands, that is why numbering is base 10. You calculate with fingers.
The slide rule is considered by many to be the earliest recorded calculating device is only considered by some but not all.
2. Computer literacy is the knowing about and understanding computers and their uses.
Literacy is knowing how to spell correctly.
The other statements are the same.
perhaps electrical system problem 1984 Mercedes-Benz 300 DT?
I seem to be having some kind of electrical problem with my car.
I hear a sort of clicking/shocking noise from near the firewall middle while inside the car; it sounds similar to a stun gun being discharged, and only occurs when I have the front defroster/main heater turned off. when i turn the defroster on, it goes away.
I have checked the battery cables and inspected the battery while the car is running, and i don’t see any electrical discharge, and cannot hear it while outside the car.
occasionally while driving, the seat belt light will come on, and sometimes just before i start it up. the dashboard information lights will go off, while they usually stay on for about 5 seconds after the car is started. also, i occasionally get a little shock while closing the door after exiting the vehicle, suggesting that something is expelling electricity into the frame or something metallic connected to the frame.
i believe it may be associated with water damage to an electrical component; it started happening about a week ago after i degreased and power-washed my engine well (i accidentally left a half-empty bottle of oil open in the space behind the headlight after topping off all my fluids).
does anyone know what component may be damaged, or how to solve this problem?
I have never had any electrical problems (haven’t had any problems with this car at all) before, and the problem seems to be either associated with and/or effecting the heat system.
From the sounds of your problem there is a relay cycling in your heating/defrosting system when not in use. It is very hard to do electrical trouble shooting over the computer, my best advice is take it to the dealer and have it looked at, like i said it sounds like a relay and there only 10 or 20 bucks. I’m sorry i couldn’t answer any farther, just too little information.
What are the functions of the limbic system?
4.Where is the integration between motor and sensory information the greatest?
5.What is the roles of the astrocytes?
6.What forms the myelin sheet within the PNS & CNS?
7.What are the different types of synapses present within the ANS in the body?
8.What are the general functions of the ANS , Somatic sensory and motor divisions, and the peripheral nervous system?
9.Where are the nerve plexuses in the body & what is their functions?
10.What are the connective tissue coverings around the nerves from superficial to deep?
11.How are the somatic reflexes set up, especially their synapses?
12.What are the functions of cerebrospinal fluid?
13.What are the different processes that the medulla oblongata is responsible for.
14.Where is vision processed in the brain?
15.What is the main structure that sensory signals pass through on the way to the cerebrum?
16.What connects different regions within the same cerebral hemisphere?
17.What does the substantia nigra do?
18.What are the functions of the limbic system?
19.What are the symptoms & signs of Alzheimer’s disease?
20.What is the presentation & symptoms of Spina Bifida?
21.What are the thalamus & hypothalamus responsible for?
22.Define the blood-brain barrier.
23.What are the 5th & 7th cranial nerves and what, specifically, do they do?
24.What are the 10th & 12TH cranial nerves and what are they responsible for?
25.Give the components of a simple reflex arc & describe the steps involved.
26.What are the cerebral lobes with their functions?
Wow you have a lot of questions. You can try breaking them down into different questions here so you would get a more productive response.
Anyway I can only answer for #19:
Alzheimer’s is a disease that commonly causes dementia. It is when the brain rapidly ages than the normal rate. We all go through the stages of aging – we forget things, we ask the same questions over and over, etc. But if you have Alzheimer’s this happens to your brain very radically. And then one of the causes would be having dementia.
Some signs that you might want to look out for (normal vs. Experiencing early stages of alzheimer’s)
- having troubles balancing your check vs not being able to solve problems or anything that involves figures
- forgetting where you put things vs putting things where they don’t belong (ie slippers in the fridge)
- make wrong turns while driving vs being lost in places that are supposedly familiar to you
- feeling sad vs always feeling down and not wanting to socialize with anyone
What Network Structure (database,webserver,mail server and software) should I choose?
Looking for a network infrastructure design:
Overview: Need an intranet where 40 people are able to communicate and share files (including videos), should be able to access the internet. Its an ecommerce business, so customers will purchase products through the internet. The product information should be stored on some kind of database. Workers should be able to access the data (text, audio, video) from the database to work on it, and the website should be able to access the text, audio, video files for the webpage content. The workers should also be able to communicate with each other through email. An estimated number of customers visiting the website: 1000/day
At the moment there is no intranet, no network structure. Could You suggest to me what kind of hardware I would require apart from the 40 PC’s for the employees. E.g. Routers, Hubs? Webserver?Email Server? What Kind of database system would you propose? What software would you recommend for each of the main components? THANKS
You need to hire a consultant to get this information. This is a bit involved to just give you a brain dump of sorts on yahoo answers. Not to mention you would need help actually setting up the systems and the physical hardware. Not to mention we have no idea of your actual office layout and this makes a difference when you order hardware.
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