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| | Successful block transfer - encyclopedia article about Successful block transfer. |
 | | of a correct, nonduplicate, user information block between the source user and intended destination user In an information transfer transaction, the destination user is the user that receives information from the source, i.e., from the originating user. | | | Note: Successful block transfer occurs when the last bit bit (sometimes abbreviated b, see below) is the most basic information unit used in computing and information theory. | | | A block transfer attempt begins when the first bit of the block crosses the functional interface between the source user and the telecommunication system. |
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http://encyclopedia.thefreedictionary.com/Successful%20block%20transfer
(489 words)
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| | Adding 64-bit Pointer Support to 32-bit Run-time Library |
| | During the first pass through , we added pointer-size pragmas to ensure that the file saved the user's pointer size, set the pointer size to 32 bits, and then restored the user's pointer size at the end of the header. | | | Since the unmodified function name (strcat, XXX) is to be in the pointer size specified by the /pointer_size qualifier, the pointer size is changed from 64 bits to 32 bits if and only if the user has specified /pointer_size=32. | | | The compiler has a new qualifier called /pointer_size, which sets the default pointer size for the compilation to either 32 bits or 64 bits. |
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http://research.compaq.com/wrl/DECarchives/DTJ/DTJM07/DTJM07HM.HTM
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| | Operating Systems Lecture Notes Lecture 11 MIPS TLB Structure |
| | If the page table for the user process stored in kseg2 takes up most of the used address space, how big can the page table for kseg2 stored in kseg0 be? | | | Used for kernel data structures in which there is one per address space - user page tables, etc. | | | Do mapping by first mapping upper 19 bits of virtual address plus 6 bit process id to a physical page frame, then using lower 12 bits of virtual address as offset within the physical page frame. |
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http://cag-www.lcs.mit.edu/~rinard/osnotes/h11.html
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| | OpenVMS Calling Standard |
| | A variant of the unaligned bit string descriptor is used to specify bit strings where the string is viewed as a one-dimensional bit array with user-specified bounds. | | | A variant of the noncontiguous array descriptor is used to specify an array of unaligned bit strings. | | | bytes of all bytes of storage in the bit array. |
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http://h71000.www7.hp.com/doc/72final/5973/5973pro_012.html
(489 words)
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| | c=hacking14.txt |
| | Ever since Commodore was sold to ESCOM GmbH, Commodore 8-bit users have wondered who owns the intellectual rights to the Commodore 8-bit line of computers. | | | parameters jsr 32768+162 User input is returned in 253 Parameters is a stream of legal parameter bytes followed by the length of the hotkey string, followed by the hotkey string. | | | I like to think we Commodore users have other interests beside our computers, and that we pursue them at this time of year. |
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http://www.ffd2.com/fridge/chacking/c=hacking14.txt
(18098 words)
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| | BitTorrent - Wikipedia, the free encyclopedia |
| | The torrent file tells the client the address of the tracker, which, in turn, maintains a log of which users are downloading the file and where the file and its fragments reside. | | | The torrent file is then distributed to users, often via email or placed on a website. | | | Ultimately, a perfect torrent would leave two end users with only a.50 ratio for the torrent, which means every user would have to provide new content at least equal to the portion of data they did not get to upload in the last torrent to maintain an overall ratio of 1.00. |
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http://en.wikipedia.org/wiki/BitTorrent
(4287 words)
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| | Good Experience - January 2004 |
| | The problem is that the bits are different from paper-based information. | | | Obviously, bits have become more important to the average technology user since then. | | | All of bit literacy can be distilled into a simple philosophy that allows people to regain their life, free from information anxiety, while still living in the bits. |
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http://www.goodexperience.com/blog/archives/2004_01.php
(4287 words)
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| | Ars Technica: RAM Identification - Page 2 (3/99) |
| | If the parity bit does not match up, the machine will experience a "parity error" and shut down, or at least report it to you, the user with a BSOD (blue screen of death). | | | Here's how it works: (warning: this is an oversimplification!) when parity checking is turned on, the computer sends out data in 8-bit packets, attached to each packet is a 1-bit packet which conatins a "checksum." The checksum is a sum of the total of the positive numbers in the byte. | | | The maximum bit-depths available on a 72-pin SIMM are x32 and x36 (x32 being non-parity, x36 is parity.) One other thing which changes is the method used to find the amount of memory (in MB) within a given module. |
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http://arstechnica.com/paedia/r/ram_id-2.html
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| | JSI Tip 1193. Alter application execution on Terminal Server. |
| | bit adds new entries to the system master.ini file and does not alter the users.ini. | | | HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Terminal Server\Compatibility\Applications\Myapp Value name "Flags of" (REG_DWORD): MS-DOS application: 0x00000001 OS/2 application: 0x00000002 Windows 16-bit application: 0x00000004 Windows 32-bit application: 0x00000008 Return user name instead of computer name: 0x00000010 Return Terminal Server build number: 0x00000020 Disable registry mapping for this application: 0x00000100 Do not substitute user Windows directory: 0x00000400 Limit the reported memory: 0x00000800 | | | HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Terminal Server\Compatibility\IniFiles\MyAppINI Value name "Flags of" (REG_DWORD): Windows 16-bit application: 0x00000004 Windows 32-bit application: 0x00000008 Synchronize user.ini file to system version: 0x00000040 Do not substitute user Windows directory: 0x00000080 |
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http://www.jsifaq.com/SUBC/tip1100/rh1193.htm
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| | Tips For Linux - What are the SUID, SGID and the Sticky Bits? |
| | Since the SUID bit tells Linux that the the User ID root is set for this application and whenever this application executes it must execute as if root was executing it (since root owns this file). | | | As a home user (where you are both the normal user and the superuser) the SUID bit helps you do a lot of things easily without having to log in as the superuser every now and then. | | | The concept behind SUID bit is that you as the superuser would be able to allow certain applications / scripts to be run by the users as if they were the superuser for the time being. |
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http://www.codecoffee.com/tipsforlinux/articles/028.html
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| | Planet Sinclair: The Sinclair Industry: Magazines: Your Spectrum / Your Sinclair |
| | The only major British 8-bit magazine to change its name during the 1980s, Your Spectrum / Your Sinclair still retains a special place in the affections of many Sinclair users. | | | The name change was rather mistimed, as it turned out; only a few months later Sinclair sold his computer business to Amstrad. | | | And that was far from being an isolated example. |
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http://www.nvg.ntnu.no/sinclair/industry/mags/ys.htm
(1125 words)
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| | Free software UI |
| | As a software developer, I can tell you that preferences frequently do add quite a bit of code complexity as well; some more than others, but even simple preferences can add a lot of complexity if there are 200 of them. | | | User interface programming is hard to learn how to do well. | | | Issues come up via bugzilla or mailing lists or user testing, and you fix them in some way other than adding a preference, and this means you have to think about the right UI and the right way to fix problems. |
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http://www106.pair.com/rhp/free-software-ui.html
(1125 words)
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| | Bit Torrent |
| | The desired bit torrent file or collection of files is downloaded from the sources provided by the tracker server, and while it is downloaded, it is also uploaded to other sources, with the client utilizing the amount of bandwidth available to it unless a limit is set by the user. | | | It also provides statistics about the number of transfers to allow for faster bit torrent downloads, the number of nodes who have a complete copy of the file and number of nodes who only have a partial copy also allowing the user to resume bit torrent download. | | | Unlike traditional file sharing systems, the primary intention of torrents and the bit torrent client is to provide an efficient way to distribute the same file to a large group of people by having everybody that downloads a file also upload it to others. |
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http://www.gotorrents.com
(793 words)
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| | Linux: mapping driver memory into user space |
| | returned by vmalloc() into user space is a little bit more tricky, since each page has a different address translation. | | | Before a page can be exported into user space, the reserved bit must be set. | | | It implements both mapping methods described above to export the memory to user space. |
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http://www.scs.ch/~frey/linux/memorymap.html
(1354 words)
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| | Security Ahoy! Flying the NX Flag on Windows and AMD64 To Stop Attacks |
| | When a page is loaded into memory, the operating system sets the NX bit for that entry in the table to indicate whether the information on that page is data only, and may not be executed. | | | NX, which stands for "No Execute Bit," is a one-bit flag that goes with each entry in the memory address table. | | | The first version of Windows to support run-time checking of the NX bit was Windows XP Service Pack 2. |
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http://www.devx.com/amd/Article/27809/2907?pf=true
(1178 words)
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| | Making code 64 bit clean |
| | As a Linux/Alpha user I often have the problem of getting code to work on my 64 bit machine. | | | On a 32 bit machine this structure would be a nice convenient 16 bytes in length; however on a 64 bit machine it turns out that it is 24 bytes and actually the best thing would be to leave dummy out. | | | So care must be taken with long's, in addition for pointers %p should always be used rather than %x (since this would have to be %lx on 64 bit systems). |
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http://www.advogato.org/article/97.html
(3240 words)
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| | Personal computer - Wikipedia, the free encyclopedia |
| | A personal computer or PC is generally a microcomputer intended to be used by one person at a time, and suitable for general purpose tasks such as word processing, programming, or game play, usually used to run purchased or other software not written by the user. | | | The user of a modern personal computer may have significant knowledge of the operating environment and application programs, but is not necessarily interested in programming nor even able to write programs for the computer. | | | The eventual result was the purchase of several million IBM compatible personal computers all across the government which encouraged many of the government contractors to buy IBM compatibles “to be compatible with the government.” The result was that the “IBM compatible computers”, Intel processors, and Microsoft became the standard. |
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http://en.wikipedia.org/wiki/Personal_computer
(3240 words)
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| | User space kernel simulator |
| | This is the bit that gets really ugly, and a lot of this is because we need to provide a memory manager and scheduler surrogate which will allow the thing to run in user space. | | | One of these compiles against kernel headers and data structures, the other one compiles against the normal user space headers. | | | Secondly, we change out a couple of instructions (cli, sti, etc) into nops, since these would fault if attempted in a user space program. |
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http://www.andante.org/sim.html
(1468 words)
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| | File security |
| | On a Linux system, every file is owned by a user and a group user. | | | Sticky bit mode: After execution of a job, the command is kept in the system memory. | | | The Linux security model is based on the one used on UNIX systems, and is as rigid, and in some cases even more, as the UNIX security model, which is already quite robust. |
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http://www.faqs.org/docs/linux_intro/sect_03_04.html
(1762 words)
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| | User Datagram Protocol (UDP) |
| | A checksum is calculated using the the 16-bit one's complement of the one's complement sum of data pulled from the IP header, the UDP header, and some of the data. | | | Length is specified as a number of octets, and since it's a 16-bit value, it provides for a datagram of up to 65,535 bytes, including the header and data. | | | This data is padded with zeroes so that it is a multiple of two octets before the checksum algorithm is run. |
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http://www.inetdaemon.com/tutorials/internet/udp
(389 words)
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| | Disk Layout |
| | The surface of a current hard disk that uses "embedded servo" or "sector servo" technology has two kinds of data recorded on it--servo information and user data. | | | Data sectors are currently defined with a fixed size, usually containing 512 bytes of true user data. | | | The number of tracks per zone has to vary a bit to make all the numbers come out even, but most zones have the same number of tracks, again for convenience. |
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http://www.logicsmith.com/disklayout.html
(1312 words)
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| | The UNIX Forums - sticky bit?? |
| | The checking for user bit is as per below: | | | I think that the question involves inode permissions rather than checking for which user is running the program. | | | And I think the OP got the sticky bit, suid bit and sgid bit confused since he set the sgid bit and then posted a question calling it the sticky bit while describing the behavior of the suid bit. |
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http://www.unix.com/showthread.php?t=4383
(324 words)
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| | The Role of root Linux Gazette |
| | One of those permissions is called the set user ID bit. | | | In return, the program checks the user's input and only allows them to | | | The first step is to understand the root user and user |
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http://www.linuxgazette.com/node/view/396
(324 words)
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| | Digital Imaging: Introduction (Microscopy & Imaging, Cellular Imaging Core, SWEHSC) |
| | Comparing these output resolution numbers could cause a user to come to some misleading conclusions, please see the Digital Imaging: Hardware web page for more information on printing technologies.The safest thing to do is to "think pixels first". | | | The word resolution has a specific technical meaning to microscope users, namely the ability to distinguish between two closely adjacent objects at a given magnification. | | | Image resolution is often confused with the resolution of the output device (computer monitor or printer). |
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http://swehsc.pharmacy.arizona.edu/exppath/micro/digimageintro.html
(997 words)
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| | PicLan 32-bit Performance Issues |
| | This application itself is a multi-threaded 32-bit Windows application that does not create any windows (or any user interface of any kind). | | | A thunk refers to a segment of code that transitions from the 16-bit segmented environment of old-style Windows 3.x to the newer flat-model 32-bit environment of Windows 95 and Windows NT. | | | On slower systems, the work to do can be the 32-bit helper application PLAN32S.EXE. |
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http://www.modsoft.com/piclan/speed32.htm
(444 words)
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| | CD |
| | CRC is done on the sync, header, and user data. | | | The 1st 4 bits of the auxilary data field are use for detection, the final 276 for correction. | | | The resulting 24+4=28 bit word is interleaved, each block delayed by a different period, each period an integer multiple of 4 blocks. |
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http://www.andrew.cmu.edu/user/taon/CD.html
(444 words)
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| | Wikipedia: Microsoft Windows |
| | Modern operating systems need to cater for the vastly increased user base with a lower average computer skill level and the increased power and complexity of modern computer systems. | | | Further down the road, there is the "Blackcomb" operating system, which is due sometime around 2008, and will have both a client (for the average user) and server version. | | | Most modern operating systems were designed for security in a multi-user and/or networked environment and have a relatively small number of security issues. |
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http://www.factbook.org/wikipedia/en/m/mi/microsoft_windows.html
(1016 words)
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| | FedoraForum.org - Sticky Bit Help |
| | Sticky Bit: We use Sticky Bit to a directory so that one user can not delete the file of another user but can have read write permissions. | | | However what you CAN do is implement SCCS for these documents, and have users "check out", or "Check in" documents as they edit/change them. | | | Linux doesn't have a "file version control" feature built into the filesystem (one of the many things I love about OpenVMS, but that's a different topic entirely!). |
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http://www.fedoraforum.org/forum/showthread.php?t=29807
(335 words)
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| | The Unix Command Line: Single-User Mode |
| | This part of the process works a bit differently depending on what version of Mac OS X you're using. | | | Single-user mode starts you with an extremely minimal environment -- not only is the normal graphical interface not running, neither are most of the normal system daemons (init and mach-init are the only ones), and the boot disk isn't even fully mounted! | | | Also, the keyboard may not be fully configured in single-user mode, so the arrow keys don't work for command line editing (or in text editors, either); but you can use control characters (i.e. |
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http://www.westwind.com/reference/OS-X/commandline/single-user.html
(335 words)
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| | CodeGuru: Full-Featured 24-bit Color Toolbar |
| | Loading the bitmaps as 24 bits per pixel even when the user's screen is set to a different bit depth requires extra work, too. | | | CBitmap::LoadBitmap() converts the bitmap to the screen's bit depth, so the Win32 function ::LoadImage() is used instead to create a 24 bit DIBSECTION, which is then attached to a CBitmap so it can be passed to CImageList::Add(). | | | Since the Visual Studio graphics editor can't handle 24 bit images, you must edit the images in another program that can, such as GIMP or Adobe Photoshop. |
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http://codeguru.earthweb.com/toolbar/HiColorToolbar.shtml
(335 words)
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