Byte Chaser Mac OS

(Redirected from Giga-byte)
  1. Mac Os Mojave
  2. Byte Chaser Mac Os Catalina
  3. Byte Chaser Mac Os X

How is byte significance defined for an Ethernet frame? Does we count the byte starting from the MAC destination the most significance byte? I think that should be the case because I read that network byte ordering is big Endian, so the most significance byte gets transmitted first, which should be the MAC destination address. Identifier / type Contents / file system Name (typical) Remarks AppleBoot: bootloader: MOSXOF3Booter, eXternal booter: This boot partition is used by Mac OS X on New World Macs (Open Firmware 3.0 and greater) when the file system on the main partition is not supported by Open Firmware, like in a software RAID configuration or when using a HFS+ case-sensitive or a UFS file system. Jun 21, 2019 Download Sugar Bytes – Looperator for Mac Free. Click on below button to start Sugar Bytes – Looperator Download for Mac OS X. This is completely Tested and Working Latest Version Mac OS App of Sugar Bytes – Looperator. It is offline installer and standalone setup for Sugar Bytes – Looperator for Apple Macbook Macintosh. The first immersive worlds we all lock ourselves into, the 3D internet, the worlds we create will be full of errors, lonely affairs. Byte Chaser is a meditation on that inevitable direction of our technological progress. I woke up in the night. The light seemed dimmer than usual. My sister had died. Six months had past.

Multiple-byte units
Decimal
ValueMetric
1000kBkilobyte
10002MBmegabyte
10003GBgigabyte
10004TBterabyte
10005PBpetabyte
10006EBexabyte
10007ZBzettabyte
10008YByottabyte
Binary
ValueIECJEDEC
1024KiBkibibyteKBkilobyte
10242MiBmebibyteMBmegabyte
10243GiBgibibyteGBgigabyte
10244TiBtebibyte–
10245PiBpebibyte–
10246EiBexbibyte–
10247ZiBzebibyte–
10248YiByobibyte–
Orders of magnitude of data

The gigabyte (/ˈɡɪɡəbaɪt,ˈdʒɪɡə-/)[1] is a multiple of the unit byte for digital information. The prefixgiga- means 109 in the International System of Units (SI). Therefore, one gigabyte is one billion bytes. The unit symbol for the gigabyte is GB.

This definition is used in all contexts of science, engineering, business, and many areas of computing, including hard drive, solid state drive, and tape capacities, as well as data transmission speeds. However, the term is also used in some fields of computer science and information technology to denote 1073741824 (10243 or 230) bytes, particularly for sizes of RAM. The use of gigabyte may thus be ambiguous. Hard disk capacities are described and marketed by drive manufacturers using the standard metric definition of the gigabyte, but when a 400 GB drive's capacity is displayed by, for example, Microsoft Windows, it is reported as 372 GB, using a binary interpretation. To address this ambiguity, the International System of Quantities standardizes the binary prefixes which denote a series of integer powers of 1024. With these prefixes, a memory module that is labeled as having the size '1GB' has one gibibyte (1GiB) of storage capacity. Using the ISQ definitions, the '372 GB' reported for the hard drive is actually 372 GiB (400 GB).

Definition[edit]

Mac Os Mojave

This 2.5 inch hard drive can hold 500 GB (i.e., 500 billion bytes) of data.

The term gigabyte has a standard definition of 10003 bytes, as well as a discouraged meaning of 10243 bytes. The latter binary usage originated as compromise technical jargon for byte multiples that needed to be expressed in a power of 2, but lacked a convenient name. As 1024 (210) is approximately 1000 (103), roughly corresponding to SI multiples, it was used for binary multiples as well.

In 1998 the International Electrotechnical Commission (IEC) published standards for binary prefixes, requiring that the gigabyte strictly denote 10003bytes and gibibyte denote 10243 bytes. By the end of 2007, the IEC Standard had been adopted by the IEEE, EU, and NIST, and in 2009 it was incorporated in the International System of Quantities. Nevertheless, the term gigabyte continues to be widely used with the following two different meanings:

Base 10 (decimal)[edit]

Byte Chaser Mac Os Catalina

  • 1 GB = 1000000000 bytes (= 10003 B = 109 B)

Based on powers of 10, this definition uses the prefix giga- as defined in the International System of Units (SI). This is the recommended definition by the International Electrotechnical Commission (IEC).[2] This definition is used in networking contexts and most storage media, particularly hard drives, flash-based storage,[3][4][5] and DVDs, and is also consistent with the other uses of the SI prefix in computing, such as CPU clock speeds or measures of performance. The file manager of Mac OS X version 10.6 and later versions are a notable example of this usage in software, which report files sizes in decimal units.[6]

Base 2 (binary)[edit]

  • 1 GiB = 1073741824 bytes (= 10243 B = 230 B).

The binary definition uses powers of the base 2, as does the architectural principle of binarycomputers.This usage is widely promulgated by some operating systems, such as Microsoft Windows in reference to computer memory (e.g., RAM). This definition is synonymous with the unambiguous unit gibibyte.

Consumer confusion[edit]

Since the first disk drive, the IBM 350, disk drive manufacturers expressed hard drive capacities using decimal prefixes. With the advent of gigabyte-range drive capacities, manufacturers based most consumer hard drive capacities in certain size classes expressed in decimal gigabytes, such as '500 GB'. The exact capacity of a given drive model is usually slightly larger than the class designation. Practically all manufacturers of hard disk drives and flash-memory disk devices[3][4] continue to define one gigabyte as 1000000000bytes, which is displayed on the packaging. Some operating systems such as OS X[7] express hard drive capacity or file size using decimal multipliers, while others such as Microsoft Windows report size using binary multipliers. This discrepancy causes confusion, as a disk with an advertised capacity of, for example, 400 GB (meaning 400000000000bytes, equal to 372 GiB) might be reported by the operating system as '372 GB'.

The JEDEC memory standards use IEEE 100 nomenclature which quote the gigabyte as 1073741824bytes (230 bytes).[8]

The difference between units based on decimal and binary prefixes increases as a semi-logarithmic (linear-log) function—for example, the decimal kilobyte value is nearly 98% of the kibibyte, a megabyte is under 96% of a mebibyte, and a gigabyte is just over 93% of a gibibyte value. This means that a 300 GB (279 GiB) hard disk might be indicated variously as '300 GB', '279 GB' or '279 GiB', depending on the operating system. As storage sizes increase and larger units are used, these differences become more pronounced.

US lawsuits[edit]

The most recent lawsuits arising from alleged consumer confusion over the binary and decimal definitions used for 'gigabyte' have ended in favor of the manufacturers, with courts holding that the legal definition of gigabyte or GB is 1 GB = 1,000,000,000 (109) bytes (the decimal definition) rather than the binary definition (230) for commercial transactions. Specifically, the courts held that 'the U.S. Congress has deemed the decimal definition of gigabyte to be the 'preferred' one for the purposes of 'U.S. trade and commerce' .... The California Legislature has likewise adopted the decimal system for all 'transactions in this state.'”[9]

Earlier lawsuits had ended in settlement with no court ruling on the question, such as a lawsuit against drive manufacturer Western Digital.[10][11] Western Digital settled the challenge and added explicit disclaimers to products that the usable capacity may differ from the advertised capacity.[10]Seagate was sued on similar grounds and also settled.[10][12]

Other contexts[edit]

Because of their physical design, the capacity of modern computer random access memory devices, such as DIMM modules, is always a multiple of a power of 1024. It is thus convenient to use prefixes denoting powers of 1024, known as binary prefixes, in describing them. For example, a memory capacity of 1073741824bytes is conveniently expressed as 1 GiB rather than as 1.074 GB. The former specification is, however, often quoted as '1 GB' when applied to random access memory.[13]

Software allocates memory in varying degrees of granularity as needed to fulfill data structure requirements and binary multiples are usually not required. Other computer capacities and rates, like storage hardware size, data transfer rates, clock speeds, operations per second, etc., do not depend on an inherent base, and are usually presented in decimal units. For example, the manufacturer of a '300 GB' hard drive is claiming a capacity of 300000000000bytes, not 300x10243 (which would be 322122547200) bytes.

Byte Chaser Mac Os X

Examples of gigabyte-sized storage[edit]

  • One hour of SDTV video at 2.2 Mbit/s is approximately 1 GB.
  • Seven minutes of HDTV video at 19.39 Mbit/s is approximately 1 GB.
  • 114 minutes of uncompressed CD-quality audio at 1.4 Mbit/s is approximately 1 GB.
  • A single layer DVD+R disc can hold about 4.7 GB.
  • A dual-layered DVD+R disc can hold about 8.5 GB.
  • A single layer Blu-ray can hold about 25 GB.
  • A dual-layered Blu-ray can hold about 50 GB.

Unicode character[edit]

The 'gigabyte' symbol is encoded by Unicode at code point U+3387㎇SQUARE GB ❰ ㎇ ❱.[14]

See also[edit]

References[edit]

  1. ^The prefix giga- may be pronounced two ways. Gigabyte - Definition and More from the Free Merriam-Webster Dictionary
  2. ^http://physics.nist.gov/cuu/Units/binary.html Prefixes for binary multiples
  3. ^ abSanDisk USB Flash DriveArchived 13 May 2008 at the Wayback Machine 'Note: 1 megabyte (MB) = 1 million bytes; 1 gigabyte (GB) = 1 billion bytes.'
  4. ^ abStorage Chart 'Megabyte (MB) = 1,000,000 bytes; 1 Gigabyte (GB) = 1,000,000,000 bytes; 1TB = 1,000,000,000,000 bytes'
  5. ^[1]
  6. ^'How Mac OS X reports drive capacity'. Apple Inc. 27 August 2009. Retrieved 16 October 2009.
  7. ^'How OS X and iOS report storage capacity - Apple Support'. support.apple.com. Retrieved 29 June 2016.
  8. ^JEDEC Solid State Technology Association (December 2002). 'Terms, Definitions, and Letter Symbols for Microcomputers, Microprocessors, and Memory Integrated Circuits'(PDF). Jesd 100B.01.
  9. ^'Order Granting Motion to Dismiss'(PDF). United States District Court. Retrieved 24 January 2020.
  10. ^ abcMook, Nate (28 June 2006). 'Western Digital Settles Capacity Suit'. betanews. Retrieved 30 March 2009.
  11. ^Baskin, Scott D. (1 February 2006). 'Defendant Western Digital Corporation's Brief in Support of Plaintiff's Motion for Preliminary Approval'. Orin Safier v. Western Digital Corporation. Western Digital Corporation. Retrieved 30 March 2009.
  12. ^Judge, Peter (26 October 2007). 'Seagate pays out over gigabyte definition'. ZDNet. Retrieved 16 September 2014.
  13. ^Percival, Colin. 'Why is 1 GB equal to 10^9 bytes instead of 2^30?'. tarsnap.com. Retrieved 1 November 2015.
  14. ^Unicode Consortium (2019). 'The Unicode Standard 12.0 – CJK Compatibility ❰ Range: 3300—33FF ❱'(PDF). Unicode.org. Retrieved 24 May 2019.

External links[edit]

Retrieved from 'https://en.wikipedia.org/w/index.php?title=Gigabyte&oldid=1015765762'
In their newest series of motherboards, Gigabyte has replaced the traditional motherboard BIOS with UEFI, a newer (and better-looking) interface for managing motherboard settings. The layout of the UEFI on Gigabyte motherboards is different from the old BIOS layout, and there are a few new settings that need to be changed to work optimally with Mac OS X. Rather than adding yet another section to our standard OS X installation guides, we've put together a separate guide to cover the UEFI setup process.
NOTE: This guide primarily applies to the UEFI on older Gigabyte motherboards with the LGA 1155 socket-- this means P67, Z68, Z77, H67, H77, B75, and Q77 motherboards. If you use a newer motherboard with the LGA 1150 socket, ignore the sections on xHCI and EHCI.

Introduction
Mac os mojaveEssentially, the BIOS (or UEFI) is the settings page for your computer's motherboard. From here, you can fiddle with how your computer hardware works-- it's often necessary to change a few basic settings in the BIOS or UEFI to get Mac OS X up and running. The BIOS standard is generally used by motherboards from before 2012, while the UEFI standard is used by motherboards made after that.
UEFI on the left, BIOS on the right
Not sure whether your computer's motherboard uses BIOS or UEFI? Here's a quick tip to differentiating between the two: the interface of BIOS is usually monochrome and entirely text-based. Meanwhile, the interface of UEFI usually has pictures, and allows you to use your mouse pointer.
Guide
To enter the UEFI on a Gigabyte motherboard, press the delete key when your computer boots (before the operating system starts). Different manufacturers set different keys for opening the UEFI. On some Gigabyte motherboards, this will bring you to the '3D BIOS'. From here, you can choose which specific part of your motherboard that you want to manage.
However, the 3D BIOS is kind of annoying to use. Instead, click on the 'Advanced' section in your UEFI instead (UEFI allows you to use your mouse cursor). This will lead you to a more standard-looking settings page.
Before starting, it's best just to reset all of your UEFI settings to their factory defaults. On Gigabyte motherboards, you can reset your UEFI settings to their default by pressing the 'F7' key. Once your UEFI is running on its defaults, you will have to change the following settings:
Boot Option Priorities - Change 'Boot Option #1' to your USB drive. You need to do this for Unibeast to work. After you finish installing Mac OS X, you should change this setting back to default, so your main hard disk is the first boot option (this optional, but it will speed up your boot times later on).
On Gigabyte motherboards, the settings page will often show you two versions of each hard disk: the UEFI version (usually labeled as 'UEFI'), and the legacy version (usually labeled as 'P', 'SATA,' or 'Legacy'). If you installed OS X El Capitan through the Unibeast method, you must set the UEFI version as first priority. This is because Hackintoshes with El Capitan use the Clover bootloader, which only works with UEFI boot.
However, if you are installing an older version of OS X through the Unibeast method (e.g. Yosemite, Mavericks, etc.), you must select the legacy version as first priority. This is because Hackintoshes with older versions of OS X usually use Chameleon or Chimera bootloader, which does not support UEFI boot.
xHCI Mode - Change this to 'Auto'. This setting is usually set to 'Smart Auto', which doesn't work.
xHCI Hand-off / EHCI Hand-off - Make sure both of these settings are enabled.
Even though the UEFI supports using a mouse, it'll probably be easier to navigate through the UEFI with the arrow keys on your keyboard. Press 'Enter' to change a selected option in the UEFI. On a Gigabyte motherboard, press F10 to save my changes.