Why is 1024 bytes 1kb




















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Popular interchangable lens cameras ». Any gb phone prevents you from buying another phone from at least 2 years. Let me explain. If you are going for android and u have any less memory phone, adding memory card makes the phone slower. Reading from external memory device always takes more time. We believe that for most people, GB is a great storage size to go with.

With GB, you should have more than enough space for the important files that matter to you. And if you take a lot of photos with occasional video, then GB is also a great size for that. If you want to be able to download dozens of apps and mobile games on your device without hitting any limits, 10GB of storage space should give you the space you need.

Most phones today come with at least 32GB of storage space as an absolute minimum. The top of the range phone goes even further with anything from GB to GB. If you want the absolute top speed performance, no stuttering issues, lag, or any other graphical or performance hiccups, 32GB might be your ideal of good RAM.

Actually 12Gb is actually a sweet spot for gaming. Begin typing your search term above and press enter to search. Press ESC to cancel. Ben Davis May 28, Why is it KB in a MB? It is important to show where the 2 systems are used. It turns out that the SI system is used a lot, depending on what is being measured. I've worked in IT professionally since the mids. My current practice is to write whichever of e. Maybe one day I'll change my verbal abbreviations from e.

The basic confusion is in the notation at the KB base 2 derived vs kB SI unit unit level, and it is helpful to understand the origin of the use of the base 2 derived unit.

At the basic level, memory addressing is binary. Usually, at the programmatic level, the addressing is keyed in hexadecimal format it was originally binary ; however, hexadecimal is also base 2 derived it is base 16 or, 2 4 and so is directly compatible. Beginning at the KB level for communicating understanding here is useful since the concepts of base 2 derived units have existed since before MB was in common usage no differentiation in prefix from SI unit.

On a memory controller IC, if you imagine that address selectors are a row of switches binary logic gates and depending on how they are switched you get the memory read from a specific address on the data lines.

The data is stored and returned as bytes. There has always been a limited number of address lines available to address memory, and it so happens that using binary complete address sets for a given number of bits of addressing are base 2 numbers. So, on a 4KB machine, there are 12 address lines representing addresses 0 through bytes. These 12 address lines are corresponding to the addresses possible in binary, 0FFF in hexadecimal or, bytes in decimal.

It would not be logical to limit address mapping to bytes for the sake of decimal convention when there are 12 addressing bits available. This logic followed initially to hard disks also, where blocks are groups of bytes accessed by address, however and I have not checked , I do hear that perhaps hard disk vendors find it less critical to use 'round addressing' formats, particularly considering the following.

All standard values in computer terminology are base 2 derived, although, for marketing purposes, some vendors 20MB hard disk may not be as large as some keeping the convention.

It is convenient to slap 20MB on something even if it does not contain as many blocks and is easier to manufacture because there is less data density required. The entire addressing system was binary, and even standard Unix utilities used byte blocks for display. Later, the LBA addressing system allowed for logical mapping of the CHS format as hard disk size grew, however, LBA simply applies the CHS format addressing internally in the hard disk's onboard controller and allows the OS and the programmer to just consider the logical blocks.

It is only in decimal where this looks untidy as 2,,, bytes, but the underlying technology and conventions are not decimal. Computers are not decimal machines; they are binary machines. Network addressing also uses binary masks on every one of millions of data packets every second to ensure correct routing but, it is a long time since the data portion of a network packet has resembled a base 2 number.

It's KB or kB? I am adding a second answer to clarify some issues with the question and to clear the obvious confusion in the answers. The link refers to 'kilo' only. Number 3 is essentially the only useful definition in software engineering. Note that the K is capitalized. There is also KiB which is equivalent to KB. Note that the kilo word is always represented by small k. For OP to teach KB as ever is always flat wrong.

Teach them that without context, you don't know because there most certainly are people out there who will use k to mean and others who will use k to mean Which is right is not relevant because both usages are out there. This leaves any use of "k" with bytes ambiguous unless whoever gave the number also specified what they meant. For this reason I'd recommend that you teach that when giving a value in bytes, always use an IEC prefix like Ki instead.

We can declare certain usages are "wrong" all we want, and I'm not saying that is necessarily unjustified, but that doesn't make those usages go away. Teach them both but focus on in problems. They'll need to convert bandwidth, etc in networking and other courses. Converting using is easy but is tricky so focus on that, the knowledge will help them in computer architecture, assembly and networking courses.

They'll have to work with it someday so get them ready. The other answers all give solid reasons for teaching that both exist and how badly messed up the current situation is.

This is important, but it does not clarify what the students should prefer to use themselves. This answer focuses on the practical side of what the students can do; after learning about the current situation from the other answers. As with all uncertainty in computing, the safest option is always to assume the worst-case scenario.

That is, to minimise the chance that an incorrect assumption will cause bugs. At worst, you will think you have less resources than you actually do. But it means you will never plan for having 96 Bytes more than you actually do.

At worst, you will assume the library that said it uses 2kB RAM meant it uses 48 Bytes more memory than it actually does assume it meant , not But you will never plan for it using 48 Bytes less RAM than it actually does.

At worst, 3rd parties will assume your program uses more resources than it does, by assuming you meant Bytes per kB not But you will never accidentally lead somebody to think it uses less than it actually does. Of course, it's not ideal to have to "lose" resources unnecessarily.



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