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Computer Maintenance
Tasks and programs that are necessary for proper computer upkeep including Scandisk and Defrag
1,519 Questions
Functions except gets and puts in c?
printf , scanf , getchar, putchar, getc are the other operators in C except gets and puts..
A white line is on my laptop screen what should you do to get it out?
If the line is constant then it is probably a hardware problem that requires repair. If the line changes or goes away when you change the screen resolution for the desktop then you can probably fix the problem through software.
Your question is vague, but I will try to answer it in the best way I can.
If you are looking for requirements to run an application, which I'm guessing because of the category your question is in.
To make it simple, there's the processor, memory, video, and sound. Another not listed in this example would be the amount of space on the hard drive that you need to have.
Here's an example from a popular game:
PC System Requirements
OS: Windows XP / Windows Vista (with latest Service Packs)
Processor:
Recommended: Dual-core processor, such as the Intel Pentium D or AMD Athlon 64 X2
Memory:Minimum: 512 MB RAM (1GB for Vista users)
Recommended: 1 GB RAM (2 GB for Vista users)Video:Minimum: 3D graphics processor with Hardware Transform and Lighting with 32 MB VRAM Such as an ATI Radeon 7200 or NVIDIA GeForce 2 class card or better
Recommended: 3D graphics processor with Vertex and Pixel Shader capability with 128 MB VRAM Such as an ATI Radeon X1600 or NVIDIA GeForce 7600 GT class card or better
Sound: DirectX-compatible sound card or motherboard sound capability
Mac System Requirements
OS: Mac OS X 10.4.11 or newer
Processor:Minimum: PowerPC G5 1.6 GHz or Intel Core Duo processor
Recommended: Intel 1.8GHz processor or better
Memory:Minimum: 1 GB RAM
Recommended: 2 GB RAM
Video:Minimum: 3D graphics processor with Hardware Transform and Lighting with 64 MB VRAM Such as an ATI Radeon 9600 or NVIDIA GeForce Ti 4600 class card or better
Recommended: 3D graphics processor with Vertex and Pixel Shader capability with 128 MB VRAM Such as an ATI Radeon X1600 or NVIDIA 7600 class card or better
What files constitute the XP registry?
The windows XP registry consists of several files, loaded together they constitute the "registry"/
These files are Software, System, SAM, Security, Default, and UserDiff. They are located in Windows\System32\Config and are usually hidden or considered protected system files.
One other registry file is called NTuser.dat and is located in the users Documents and Settings folder.
What server allows thousands of simultaneous users and perform several task everyday?
A server is an application (software), not a machine. There are many different types of server applications, including e-mail servers, print servers, file servers, DNS servers, web servers, ftp servers and so on. Each server application is dedicated to a single task, so there is no such thing as a server that performs several tasks.
In organisations with many clients requiring access to a variety of services, the servers will typically be split across several machines. The DNS server is by far the most important server and will typically be handled by a single machine dedicated solely to the task of translating domain names into IP addresses. In this sense we may refer to the machine as being "the server", however the server is the application, not the machine.
The machine itself does not need to be particularly powerful because the biggest bottleneck in any client-server application is not the raw speed of the machine running the server but the available bandwidth between the server and its clients. As the number of clients increases, the speed of delivery drops off substantially, so the server spends most of its time simply prioritising data packets so each client is dealt with fairly. For instance, a file server typically delivers files of varying sizes, but will generally prioritise smaller files over larger files. In this way, no single client ends up hogging all the bandwidth downloading large video files at the expense of those downloading a 1 KB text file.
In order to prevent backlogs at the server end, there needs to be sufficient bandwidth available to meet client demands, with a suitable overhead to deal with peak demand. A small network server might use just one network interface card, but a larger network will require several independent interfaces. To support "thousands" of simultaneous users, the server itself may be split across several dedicated machines, creating a "data centre". Many large organisations have buildings dedicated purely to housing data centres, known as "data farms", and the largest organisations have farms all across the world. These are often known as content distribution networks, or CDNs.
You don't need a CDN or indeed a powerful machine in order to connect a mere thousand users simultaneously, but what you will need is bandwidth -- and lots of it.
How do you install bit locker encription?
First, Download Bitlocker.
You can download it on the Softpedia Website.
After downloading, you can now double click the newly downloaded File and start the installation. Follow the steps. If you are propted with EULA (End-User License Agreement), select I agree..
After installing, insert the pendrive and right click it's icon, click the "Bit Locker" encryption icon.
Can a magnet delete everything on a computer by just putting it on the outside?
No. A magnet only interfers with magnetic fields ... lots of old IBMs used magnetic memory cards and that's where the stories started.
It might erase a floppy disk, but an electro-magnet does the job much better than a perminant magnet.
How many states does a transistor have?
A transistor can be in three conditions or states. It can be active (at a voltage higher than the emitter), in saturation or cut off (no current).
google (performance parts for 49cc engine)
Answerturning in the mixture screw will cause a lean burning condition that can severely damage your engine!if your scooter has a restrictor washer on the variator you can remove it to gain a higher gear and gain some speed, some scooters have a restrictor on the exhaust which can be replaced with a new gasket.
also the CDI has a rev limiter, you can get a performance CDI that will not have the limiter which will give you more power.
you can install a performance variator and get lighter roller weights but going too light will cause major loss of top end speed and too heavy will give you poor acceleration.
a light weight rider can go with 7 or 7.5, a heavy rider would do better with 6 gram roller weights.
installing a big bore kit will require changing the carb jets and using a performance air filter and exhaust otherwise you will not see much of a difference, check your local laws, some states make you get a motorcycle license and register anything over 49CC.
Why did your keyboard and laptop touchpad stop working and how can you fix it?
Well it depends.. has the laptop been dropped recently? could be a motherboard issue. Also try opening the laptop and make sure the keyboard is connected to the motherboard.
Most likely it could be a keyboard gone bad in the hardware department which you would have to replace it.
What is the function of mainframe?
The function of the mainframe is to hold all the components and subsystems that make up a large computer.
How do you fix your computer of it doesn't always go through the boot phase?
It depends on what type of computer and what you mean by Boot Phase. All PC's go through a POST check (power on self test). This powers up the hardware and checks the mother board components: hard drive, processor, memory etc. If a component is faulty it might prevent the boot sequence continuing. Check your BIOS for a diagnostic tool, some PC's have self test option if you press a particular key to interrupt the boot sequence.
If it is Windows that is not loading first thing to try is press F8 as soon as Windows loads. Choose Safe mode and see if it boots. Safe mode is where Windows loads but only with the minimum of software and hardware support. If the PC can't boot to Safe Mode try to do a repair using your Windows disk (installation CD or DVD). For XP run through the setup wizard and do not choose repair until the setup program finds there is an existing install, then choose to repair it, there are plenty of guides on repairing different version of Windows on Microsofts website.
The third alternative is to boot from a Windows PE disk. These Windows "Preinstallation Environment" disks can be easily downloaded and are free. They load a stripped down version of Windows from CD and can be used to look at various system logs, registry, files and folders on the host PC. They can also be used to reset passwords on machines where the local admin account password is lost. Barts PE is my favorite for XP although there are plenty going around.
The solution for securing private data traveling over a public network is a?
the answer is virtual private network
When removing screws while working on a laptop what should be done with the screws?
- Put screws (and other parts) in a safe tray or container so they won't roll away, blow away, get lost.
- Keep track of which size screw came from which screw hole so you don't put it into the wrong size hole leaving a loose screw or a stripped plastic screw hole.
- It may even be a good idea to keep track of where each screw came from as some screws are very close in size.
How can I fix my built in mic on my desktop?
When you say "fix" does that mean it used to work at some point and then it stopped working all of a sudden? This can be due to a recent upgrade. Maybe you upgraded to Windows 10, which in such case it's common to run into such internal mic issues.
There are three things you can try:
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Update all driver: The issue may be due to some conflict with the drivers. You can update manually or download and install a software called "driver easy." The driver easy automatically recognizes your windows version and will install the best drivers for it. It's easy to use as well.
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Also, you can try setting your mic as the default. In some cases, this helps. All you need to do is right-click on the speaker icon at the bottom right, select "recording devices," then in the sound dialog, click the recording tab and select your mic as default.
Digitizing an image involves capturing it from paper using a scanner for presentation and storage on the computer. On the computer, the now-digital image can be improved image processing tools.
What is the role of the power supply in a computer?
it distributes the electrical curent to the different components of the PC such as DVD rom, external lights, , and the parallel ports where you hook the monitor and keyboards and mouse and of course to the hard drive.
The POST is a program essentially and it's "located" on the motherboard. The software gets run when you first turn the computer on.
Why should a technician that is working with a computers hardware wear an anti-static wrist strap?
the wrist strap will prevent computer components from being damaged by static electricity.
The latest input and output devices?
The latest input devices include: Point of sale, Touch pad, Smart card and Touch screen. The latest output devices include: Terminals, Plotters
How do you disable overclocking on an Nvidia Geforce card?
You should have some kind of "control panel" for your card look around in there. -- Actually, a really nice control panel for those sorts of things is "ntune". http://www.nvidia.com/object/ntune_5.05.54.00.html It's a control panel for pretty much anything with graphics... not just overclocking.
Five generation of the operating system?
First Generation (1940-1956) Vacuum Tubes Sponsored
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The first computers used vacuum tubes for circuitry and magnetic drums formemory, and were often enormous, taking up entire rooms. They were very expensive to operate and in addition to using a great deal of electricity, generated a lot of heat, which was often the cause of malfunctions.
First generation computers relied on machine language, the lowest-level programming language understood by computers, to perform operations, and they could only solve one problem at a time. Input was based on punched cards and paper tape, and output was displayed on printouts.
The UNIVAC and ENIAC computers are examples of first-generation computing devices. The UNIVAC was the first commercial computer delivered to a business client, the U.S. Census Bureau in 1951. Second Generation (1956-1963) Transistors Transistors replaced vacuum tubes and ushered in the second generation of computers. The transistor was invented in 1947 but did not see widespread use in computers until the late 1950s. The transistor was far superior to the vacuum tube, allowing computers to become smaller, faster, cheaper, more energy-efficient and more reliable than their first-generation predecessors. Though the transistor still generated a great deal of heat that subjected the computer to damage, it was a vast improvement over the vacuum tube. Second-generation computers still relied on punched cards for input and printouts for output.
Second-generation computers moved from cryptic binary machine language to symbolic, or assembly, languages, which allowed programmers to specify instructions in words. High-level programming languages were also being developed at this time, such as early versions of COBOL and FORTRAN. These were also the first computers that stored their instructions in their memory, which moved from a magnetic drum to magnetic core technology.
The first computers of this generation were developed for the atomic energy industry. Third Generation (1964-1971) Integrated Circuits The development of the integrated circuit was the hallmark of the third generation of computers. Transistors were miniaturized and placed on silicon chips, called semiconductors, which drastically increased the speed and efficiency of computers.
Instead of punched cards and printouts, users interacted with third generation computers through keyboards and monitorsand interfaced with an operating system, which allowed the device to run many different applications at one time with a central program that monitored the memory. Computers for the first time became accessible to a mass audience because they were smaller and cheaper than their predecessors. Fourth Generation (1971-Present) Microprocessors The microprocessor brought the fourth generation of computers, as thousands of integrated circuits were built onto a single silicon chip. What in the first generation filled an entire room could now fit in the palm of the hand. The Intel 4004 chip, developed in 1971, located all the components of the computer-from the central processing unit and memory to input/output controls-on a single chip.
In 1981 IBM introduced its first computer for the home user, and in 1984 Apple introduced the Macintosh. Microprocessors also moved out of the realm of desktop computers and into many areas of life as more and more everyday products began to use microprocessors.
As these small computers became more powerful, they could be linked together to form networks, which eventually led to the development of the Internet. Fourth generation computers also saw the development of GUIs, the mouse and handhelddevices. Fifth Generation (Present and Beyond) Artificial Intelligence Fifth generation computing devices, based on artificial intelligence, are still in development, though there are some applications, such as voice recognition, that are being used today. The use of parallel processing and superconductors is helping to make artificial intelligence a reality. Quantum computation and molecular and nanotechnology will radically change the face of computers in years to come. The goal of fifth-generation computing is to develop devices that respond to natural language input and are capable of learning and self-organization.
Read more: What_are_the_five_generations_of_operating_systems_in_history
A senior programmer is the person in charge of all the other programmers. Normally they have been with the company for a long time, hence the name "Senior" programmer. They usually watch over whatever project the computer programmers are working on to make sure it is correct and on time.
