What is pc: Definition and 276 Discussions

The PC-9800 series (Japanese: PC-9800シリーズ, Hepburn: Pī Shī Kyūsen Happyaku Shirīzu), commonly shortened to PC-98 or 98 (キューハチ, Kyū-hachi), is a lineup of Japanese 16-bit and 32-bit personal computers manufactured by NEC from 1982 to 2000. The platform established NEC's dominance in the Japanese personal computer market, and, by 1999, more than 18 million units had been sold. While NEC did not market these specific machines in the West, it sold the NEC APC series, which had similar hardware to early PC-98 models.
The PC-98 was initially released as a business-oriented personal computer which had backward compatibility with the successful PC-8800 series. The range of the series has expanded, and in the 1990s it was used in a variety of industry fields including education and hobbies. NEC succeeded in attracting third-party suppliers and a wide range of users, and the PC-98 dominated the Japanese PC market with more than 60% market share by 1991. IBM clones lacked sufficient graphics capabilities to easily handle Japan's multiple writing systems, in particular kanji with its thousands of characters. In addition, Japanese computer manufacturers marketed personal computers that were based on each proprietary architecture for the domestic market. Global PC manufacturers, with the exception of Apple, had failed to overcome the language barrier, and the Japanese PC market was isolated from the global market.By 1990, average CPUs and graphics capabilities were sufficiently improved. The DOS/V operating system enabled IBM clones to display Japanese text by using a software font only, giving a chance for global PC manufacturers to enter the Japanese PC market. The PC-98 is a non-IBM compatible x86-based computer and is thus capable of running ported (and localized) versions of MS-DOS and Microsoft Windows. However, as Windows spread, software developers no longer had to code their software separately for each specific platform, and the PC-98 became regarded as one of the Windows-based machines like other IBM clones. The PC-98 adopted non-proprietary parts developed for IBM clones to reduce manufacturing costs. Due to the popularity of Windows 95, the demand for the PC-98 on which legacy applications depend had declined. In 1997, NEC abandoned compatibility with the PC-98 and released the PC98-NX series based on the PC System Design Guide.

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  1. M

    Spectrum Analyzer + PC: Interface & Contact Info

    Hi everyone, i want to operate spectrum analyzer by pc or laptop. Is there such interface of spectrum analyzer and pc possible? If yes, then how? Tell me the name and contact detail of person who have make such interface..
  2. S

    Calculating Power Usage of PC Pump for Oil Well Setting

    Hi I am trying to determine the power usage of a progressive cavity pump in an oil well setting. I have some data to analyze, where I know the amount of viscous rod torque (ft lbs) per 1000 ft of rod length, I can use various rod lengths, and I know the RPM. Calculating the total Rod Torque I...
  3. Spinnor

    Could a PC calabrate a cheap PC mic?

    Say we have a cheap PC microphone attached to our computer. If our computer could produce a test sound that varied intensity and frequency with some degree of precision then our cheap microphone input signal could be calibrated in some sense? Once the mic was calibrated software could correct...
  4. D

    Cosmic Rays a problem for PC reliability in near future?

    Is it to become a major problem as transitors get smaller & RAM amount goes up? A blog on NS said "This problem is projected to become a major limiter of computer reliability in the next decade." Will it be like moore's law with transistors size being a limitation? My comp has 4GB RAM &...
  5. D

    Part Marking Populated PC Board

    Gents, I have populated boards which a white box screen printed onto the board where a part number or serial number can be written in with a magic marker. I am looking for something more permanent for configuration control reasons and wanted to know if anyone has any successful experience...
  6. Helios

    Help! My PC is Infected with Conficker Virus - How Can I Remove It for Free?”

    My computer is obviously infected with the Conficker virus. It's the darndest thing, it blocks websites that offer virus removal stuffs. Does anyone know how to get rid of it ( for free )?
  7. L

    Best computer for aerospace engineer: mac or pc?

    Hello, I am currently in my early school phases on my path to becoming an aerospace major. I know there are programs which engineers use for design purposes and other programs as well which they need for their profession. Since i am still in school i have not had the experience of finding...
  8. K

    Error injection using PC based modulator

    Injecting error in the transport stream using the pc based modulator whether will affect the BER of the stream. Because while my testing the BER is not even varying but Transport stream error packet count will increase. Any one could you please the above beghaviour.
  9. G

    Why is E=pc with Light's Zero Rest Mass?

    I was reading the derivation of this equation on hyperphysics.com and after searching all over the internet it seems that eveywhere seems to just accept this equation is valid for light, even though a rest mass of 0 would make p equal to 0. Sorry if I'm being stupid or if this has been asked...
  10. T

    When comparing these Two PC builds, which would you recommend?

    The AMD "Katharine" computer Processor - AMD Phenom II X4 965 BE 185.99 Motherboard - ASUS Crosshair III Formula AM3 socket motherboard $199.99 RAM - Kingston HyperX 4GB 2x2 GB DDR3 1333 MHz $133.99 Graphics card - Sapphire HD 5870 Vapor-X $439.99 Power supply - Corsair HX850 $199.99 Hard drive...
  11. Astronuc

    News RIP H. Edward Roberts, PC Pioneer

    H. Edward Roberts, PC Pioneer, Dies at 68 http://www.nytimes.com/2010/04/03/business/03roberts.html I remember some of the first PCs, like the Altair, and Tandy's version, Commodore-64, and the first IBM PC (based on an 8086 processor). I bought my first PC in 1985 and added an 8087 math...
  12. H

    Using phone w/ PC VOIP application

    This may be ridiculous, but here goes... I have a VOIP application on my desktop (for work) that I use at home with a simple headset with red and green speaker / microphone jacks. My standard 2-line speakerphone sitting next to my laptop at home obviously has a speaker and a microphone. Is...
  13. rhody

    Cool PC to Cell Phone Text Utliity

    Go to: http://www.txt2day.com/" Enter the 10 digit phone number, no dashes Return e-mail (optional) You select the destination cell phone's provider Normal tweet text message Answer the anti-spam question (don't forget or the message won't be sent) Press send... That's it... Rhody...
  14. B

    Connect electric guitar pickup to PC

    Hello, I would like to connect my guitar pickup directly to my PC, is it possible? I've wired an electric guitar pickup to a cable, which plugs directly to my sound card (where a microphone ought to be plugged): Sound Card -> Cable -> Electric Guitar Pickup. But it does not work...
  15. T

    Is my graphics card causing my PC to shut off during gaming?

    I've owned my Gateway FX6710-01 gaming desktop for a little over a year. I used to be able to play games such as Crysis, STALKER Clear Sky, Far Cry 2, CoD 5 World at War, for as long as I wanted without having to worry about my computer shutting itself down because my graphics card is reaching...
  16. T

    My PC shuts itself off after long periods of gaming.

    I played Crysis on all of the "optimal" graphical settings for my Radeon HD 4850 (512 MB) and I got to the point in the game where you enter the frozen alien hive, after killing that North Korean general, and then my PC just shut off by itself. I'm not talking about a crash back to desktop, I'm...
  17. T

    Would removing the side panel of my PC help with airflow/cooling?

    Would removing the side panel of my PC case help with cooling at all? Every component in my computer is running on it's factory clock speeds. My Radeon HD 4850 (512 MB) tops off at almost 110 *C when playing graphically intensive games like Crysis. I've been told that my Gateway FX 6710-01...
  18. Z

    Some serious connections from PC to several TV-s

    Does anyone have an idea what device to use to connect a PC with about 25 TV-s? The problem is that the whole building connection is based on a analog (COX) cable and i need a device that transfers a Digital signal from a PC to a several analog signals that goes thro the cable into the TV-s...
  19. S

    Mac or PC? Deciding the Best System for an EE Student

    So I am an EE student, just getting ready to buy a system for my career... should i buy a mac or a pc?
  20. T

    Screenshot of the PC version of Crysis 2?

    I find it utterly impossible to believe that this is an actual in-game screen shot from the PC version of Crysis 2. Using the CryEngine 3 and DirectX11. The PC version of Crysis 2 will look dramatically better graphics-wise, as opposed to the versions of the XBOX 360 and Playstation 3. Due to...
  21. T

    Power consumption of PC case fans.

    I just bought a Coolermaster HAF 932 full tower PC case for my gaming rig. It has about Five or Six, large case fans in it. I also bought a Coolermaster V8 CPU air cooler. It say's on the box of the V8, that the cooler itself can consume a maximum of 180 watts of electricity. I find it utterly...
  22. S

    Small, Lightweight Voltage Measurement Device for PC via USB

    I'm looking for a device I can use to measure analog voltage (up to 25V) and send the data to a PC via USB. Only really need one input, though it wouldn't hurt to have more. My main concern is that it needs to be pretty small and light - any ideas? The few I've seen online are either too...
  23. M

    What would be an outcome after i reformat my pc?

    my brother installed a new video card and a new RAM... i have three hard drives... drive c, drive d and drive e i am aware about the outcome after i reformat my pc and i freshly knew in how to reformat a pc and i haven't try it in actual... i learned only on youtube my drive e is empty...
  24. T

    Your opinion about buying a new desktop PC case?

    Use this link to see hardware specifications for my desktop PC. http://reviews.cnet.com/desktops/gateway-f...?tag=mncol;rnav Due to a misunderstanding concerning the store warranty which was cleared up today, I discovered that buying a new case for my PC will not void the warranty of my...
  25. R

    PC Cell Efficiency: Find Power (in W)

    Homework Statement A photovoltaic cell has area 80 sq cm and efficiency converting energy in the form of sunlight to electricity of 7%. The sun's intensity is 800 W / sq m and the rays are perpendicular to the cell's surface. What power will be produced by this cell (in W)? Take care in...
  26. Saladsamurai

    PC Users What do you use to create FREE PDF files?

    How can I create a PDF file w/out buying anything? Why does adobe try to swindle you into buying something? It's cake on my Mac, but on my PC not so much. So what do you guys use? Thanks, Casey
  27. T

    Deleting old and unused programs makes your PC run faster?

    I was wondering if deleting a few video games which I have mastered and do not play anymore which in all amounts to, and frees about 22 GB of space on my 700 GB hard drive, will make my computer boot and run slightly faster?
  28. A

    PC Case Thermodynamics/Air Flow?

    S-FLEX = 1900RPM high CFM | 120mm fans CM Stock = 1000 RPM low CFM | 120mm fans Yellow = Intake Blue = Exhaust This is my PC Case and I'm buying 5 new fans. I overclock my computer, so I need as low temperatures as possible :) Speaking from a scientific stand-point. Does it make sense...
  29. D

    Question about water flow through a PC watercooling system

    So I decided that I want to machine my own water cooling system from scratch. I know it's going to take a lot of time for virtually no money saved, but I want some experience machining and it'd be really cool to make something that I'd actually use. So anyway, I can't figure out why all CPU...
  30. W

    Choosing the Right Device for Grad School: PC or Laptop?

    I'll be starting grad school in July and my current PC is a good 3+ years old. I will leave it here so the family can use it, but that means I'll have to buy something for myself. I don't know if I should buy a laptop or PC, though. I prefer PC's, as I can customize them how I want and when...
  31. B

    Relay to control appliances connected to pc

    when my pc shuts off, i want to shut off a bunch of other things too-speakers, light, monitor. to do this i need a relay but am a little perplexed on the correct wiring. (Please ignore the periods. they are necessary to make this drawing look right but have no meaning) Voltage_____| . ...
  32. R

    If I install stronger PC power supply in terms of watts

    ...than my current unit,is there danger that some component in my PC will be destroyed?
  33. Saladsamurai

    Can You Easily Upgrade the RAM in an Older Desktop PC?

    Okay; so here is a screenshot of my PCs (it is a desktop) info. Here is what I want to know: 1) 256 MB is pretty small isn't it? My Macbook has 4GB 2.) Where can I look to see if I can fit more RAM in my PC? I assume that is not the max I can fit? 3.) Assuming I am not 100%...
  34. D

    Vacuum cleaner with pc fan possible?

    Hi! I would like to ask for some help regarding a project I am thinking of making. Well, the thing is, I would like to make a vacuum cleaner with just a couple of tupperware "boxes" 8sorry, I don't know how you english people refer them to...:P), some tape to prevent air leak and a 63 CFM pc...
  35. A

    PC Power Consumption: Can I Use a UPS to Supply Voltage?

    can anyone tell me my quote is feasible? Electronic devices requires 1 to 12v approx to function. Indian Electricity board supplies us 230v for domestic & official appliances; so additionally we need an AC adapter to convert into DC (a sort of stepping down the power) . we cannot ask...
  36. T

    Problems with newly purchased desktop PC.

    tried setting up my Gateway FX6710-01 today, and everything was plugged in correctly.. But when I turned it on, the Gateway HD LCD monitor said there was no video singal. I had the mouse, keyboard, speakers, computer power plug, and the monitor power plug and monitor imput wire plugged into the...
  37. V

    Internet Security Recommendations (PC)

    Hey guys, I was wondering what brand of internet security software would you recommend for the PC? I am currently using Norton Internet Security 2009, however, I hear some of the other brands are better such as McAfee and Trend Micro? What do you guys think of Norton 360? Its just that I have...
  38. S

    One click worth of 0,1% of a PC for a boy

    Dear PF members, this is completely off-topic, but I ask you for a vote in an internet contest. You should go to http://www.piesledzieslatvija.lv/stasti/851/ and press "Blasot par šo stāstu" (="Vote for this story"). This is a special charity site set up by our telecom operator...
  39. P

    PC Water Cooling Benefits: Pros & Cons Explained

    hey guys i'm thinking of building myself a pc next year and I've been reading a bit about water cooling. now every search i do tells me how great it is but the bit of me that spent 4yrs doing a mechanical engineering degree is a bit of a sceptic. firstly, sure, watercooling can deliver...
  40. S

    Teaching my kids TRUE science, not PC garbage

    Dear Everyone, I need help and advice, please:rolleyes: I am a retired teacher who is appalled at the nonsense the current crop of PC baloney my grandsons are being brainwashed with every day. My field was Social Studies, so I am at a disadvantage when it comes to hard science and physics...
  41. G

    PC Parallel Bus for CNC Machine: Is it Possible?

    Hi I have a project to do it in my final year, the project is to develope a program to drive motors in a CNC machine, the problem is this CNC machine has it's own card (hardware&software) to be installed in a PC bus to comunacte with the CNC machine but this card is missing and the company...
  42. H

    Fallout 3: PC Game Review - Is it Insanely Fun?

    Is this game insane or what? I love this game, its Balling! :smile: :approve: Watch it in High Quality mode: http://www.youtube.com/watch?v=EX3yJRXpSOQ&feature=related
  43. edward

    Is Magicjack VoIP PC Phone Really That Cost-Effective?

    I haven't seen this infomercial before, but then I am not usually watching TV at 3:00AM It sounds too easy?
  44. Math Jeans

    Mac vs PC: Debunking the Myths and Examining the Facts

    I've been hearing numerous claims that Macs are hands down better than PCs. People say that Windows even runs faster on a Mac Discounting the OS (which can be switched around freely), I have found different information. The Mac website has the new Mac Pro desktop that they state on the...
  45. O

    Transferring Files From PC to Mac - Tips & Tricks

    yes, i just got a nice new macbook pro... how do i get all my music, important files, pics, etc from my pc to my mac?! lol sorry i came here to ask but any info would be great !
  46. M

    Alternative to Tablet PC for ELN (electronic lab notebook)

    For those afraid of computers or so attached to pen and paper they can't change to an all electronic lab notebook, there is a review on a magic pen that gives you the Onenote benefits (organization, searchability,...) while still letting you doodle away with paper and pen...
  47. E

    PC restarts everytime I watch a video

    My pc restarts everytime I watch a video after 5 minutes (e.g. on youtube or if I watch a video with the windows media player) . a) I've already done a memory test (the memtest ran for 6 hours and didn't show any errors) b) I formatted the hard drive and reinstalled windows XP...
  48. P

    Medical Is the monitor (of your PC) destroying your eyes?

    Is the monitor (of your PC) "destroying" your eyes? Hello! :smile: I have one question for you. Is the monitor (of your PC) "destroying" your eyes? Are there any research or statistics relating this question? Thank you.
  49. U

    Booting off a usb drive on a pc that does not support it

    I would like to boot off a usb drive on a pc that does not support it. Has anyone thought of booting off a cd and transferring the start-up to the usb drive?
  50. R

    Is there such software, that I can use the PC for graphing?

    Like, there are somethings that take too long to graph on ti-89, especially with accuracy. I would like to know how to use my PC to graph. Thank you.
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