Computer Memory

The computer memory is a physical device used to store data or programs for use in a computer. Some types of computer memory include RAM (random access memory), ROM (read-only memory), and page cache.

9,928 Questions
Computer Terminology
Word Brain Teasers
Computer Memory

How many megabytes are in a gigabyte?

Standard definitionOfficially, there are 1000 (103) megabytes (MB) in a gigabyte (GB). So 500MB would equal 0.5 GB.

This definition is used in hard drives, portable memory drives (memory cards, USB drives), DVDs, Blu-ray disks, and most measures of performance. Some software (such as Mac OS X and the Linux kernel) uses this definition when displaying file and disk sizes.

MB stands for megabyte. Mb with lowercase b is ambiguous, as it has been used for both "megabyte" and "megabit". Writing megabytes as MB and megabits as Mbit avoids any confusion.

Memory manufacturer definitionAnother definition is used by memory manufacturers and some software, like Microsoft Windows. They use 1024 (210) megabytes per gigabyte, but this is more properly called a gigabinary byte(GiB), sometimes contracted to gibibyte.

Using the non-standard definition:

  • 1 megabyte (MB) = 1024 kilobytes (KB)
  • 1 gigabyte (GB) = 1024 megabytes (MB) or 8192 megabits (Mb)
Examples:
  • 1,000 megabyte (MB) = 1 gigabyte (GB)
  • 1,024 mebibyte (MiB) = 1 gibibyte (GiB)
  • 1 megabyte = 8 megabits
  • mega- = 1,000,000
  • giga- = 1,000,000,000
  • mebi- = 1,024 × 1,024 = 1,048,576
  • gibi- = 1,024 × 1,024 × 1,024 = 1,073,741,824
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Microsoft Word
Computer Memory

What is the storage size of a word on a computer?

It depends on the size of bit support the processor.

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Software and Applications (non-game)
Microsoft Windows
Windows XP
Computer Memory

What causes the error 'Winlogon ese-application error the instruction at 0x759723ee referenced memory at 0x00000000 the memory could not be read'?

first u change the BIOS battery and restart the PC in last known config mode.

Also can try removing RAM chips and re-seating them.

There are 3 step to repair 0x759723ee error

If you got 0x759723ee error then there is a 94% chance that your computer has registry problems. To repair 0x759723ee error you need to follow the steps below:

* Step 1 - Download a 0x759723ee error repair tool RegInOut Cleaner, and install this error repair tool.

* Step 2 - Click the Repair All Button.It will scan you pc for Free.

* Step 3 - Then click the Repair All Button again and your done! It is very easy to repair 0x759723ee error.

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I DISAGREE COMPLETELY! First of all the person who answered this question doesn't know what kind of PC you're using or how old it is. They don't know what OS you're using or what level of comfort you have troubleshooting in such sensitive areas. Your best bet is to visit a site that has the credentials to answer your question. After you give them ALL the info about your pc - i.e. brand & type, (laptop or pc) age, your CPU and which OS you're using. Then they can give you educated and SAFE suggestions. If you mess with the Registry or BIOS and don't know what your doing you could really do irreperable damage. You may not have to but If you make a post on any site you should state your comfort level of fixing this issue yourself.

The fact that you came here for an answer (instead of going to a tech site or googling the error) tells me that you're not at the level that's required to do the instructions above. (Besides I'm sure neither one of those areas are the problem) I know you're using Windows so here are some links to go to where you will get a much better answer. Don't forget to give them the info they need about your pc. BTW - Winlogon.exe is the application that logs you on/off the system. It has nothing to do with the BIOS and using a Registry Cleaner is very dangerous if you're not familiar with Registry values. Even the ones that tell you to let the program do the "cleaning" is dangerous - 90 percent of the time they remove files that are needed to keep your system stable. DON'T EVER USE A REGISTRY CLEANER UNLESS YOU KNOW & UNDERSTAND REGISTRY VALUES.

Don't worry this problem is fixable. It's usually caused by security issues (virus, trojans, etc) that have caused damage to one of your volume drives OR faulty hardware like RAM or Hard Disk Drive (HDD). You'll probably have to do a chkdsk fix which is pretty simple, but Changing your BIOS or messing around in the Registry will not help. You could just pull up the event - go to your events monitor - find the event, r-click on properties and when that pops up at the bottom there should be a direct link to the Windows online event help. From there you can go to the Tech Library or try the related links below.

Or, check out the link to the Windows forum - you will have to choose which OS (XP, 7, VISTA, etc) forum you want from there. You'll have to register and then they will validate to make sure you've got a legitimate Windows OS.

After that do a search for your propblem by typing in 'Winlogon.exe Error' in the search box. If you can't find one then start a new thread. GOOD LUCK

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Computer Terminology
Computer Memory
The Difference Between

What is the difference between SDRAM and DDR RAM?

SDRAM and DDR RAM are memory integrated circuits used in computers. The difference between the two is the speed because SDRAM is a single data rate which is slower than DDR RAM that stands for the double data rate. Which means the chip reads or writes two words of data per clock cycle.

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Computer Buying
Computer Memory
Computer Keyboards

What does the computer require on a regular schedule?

Registry cleaning, defragmenting, and temp file cleanup. This can take a while,

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Computers
Computer Memory

Does 626 KB take up a lot of space on your computer?

626 KB is a rather small filesize. It is the equivalent of about 1 picture. 1,024 KB is one megabyte (1MB). A song is typically 3 to 8 MB, or 3,000 to 8,000 KB. Most desktop harddrives today are between 120,000 MB to as much as 1,500,000 MB. Laptops are typically 40,000 to 250,000 MB. 626 KB is such a tiny amount that it's often considered 'negligible'. Or so small it makes no difference. What is listed below is technically correct for BYTES. However a Byte is 8 bits, a a bit (abbreviated as a lower-case 'b' or just 'bit') is the smallest unit of measurement in a computer. Most modern computers however use a filesystem that limits the smallest size of a unit to 512 bytes. So a 1 byte or 1 bit file will both be 512 bytes. This is called a 'cluster'. A cluster may be as large at 64 KB as well. However, for a 626 KB filesize, this is largely irrelevent as it would easily use the clusters efficiently. However having a very large number of files smaller than 512 bytes may waste a lot of space. IE, you could have 100,000 files that are all 1 byte in real size, but they take up a 512 byte size each. Making what would be 100 KB actually take up 51,200,000 KB. Older computers, SD cards, thumb drives, and other USB and flash drives use FAT and FAT32 filesystems, and suffer less of this problem (they can have clusters as small as 32 bytes) Either way though, a single 626 KB file is very, very tiny. It's the eauivalent of just under 1/2 of a floppy drive, or 1/1000th of a CD. Also, TB (Terabyte) is not the largest unit. While very rare to see in a consumer (home user's) computer, there also exist PB (Petabytes), and even EB (Exabytes). Some supercomputer clusters, such as Google, have systems with an EB of storage or more. But there are, at most, a dozen such systems on earth as of this moment (7/31/2010) OLD: no, B is the smallest computer unit, KB is the 2nd smallest, MB is the 3rd smallest, GB is the 4th smallest, TB is the highest computer unit.

The question is in reference to 626Kb however. The lower case 'b' is commonly used to refer to a bit, with is one eight of a byte. The discussion above refers to bytes, commonly abbreviated with a capital B.

Thus, 626Kb are 626/8 KB = 78.25 KB. Since each kilobyte ('K') is 1024 bytes, 626 Kb therefore are 80128 bytes.

By modern standards, this is a rather small file size, but size is of course relative to the space available. Some specialized computers have very little storage, and would struggle to accommodate this amount. Other computers, including modern PCs and similar devices, can easily cope with data of this size.

339340341
Computers
Computer Memory

How many gigabytes is in 5000000 kilobytes?

5 Million kilobytes = 5 GB

There are 1024 kilobytes in a megabyte. and 1024 megabytes in a gigabyte.

Technically 5000000 kilobytes exactly equals about 4.7498GB.

Also, 5GB exactly equals 5242880KB, which is greater than 5000000KB.

So if you where trying to partition a hard drive, and specified 5000000KB and expected to see 5GB, but found 4.74GB, this could explain why.

Note: Most formatting programs align partitions on a specific KB block, such as 4KB. A 5000000KB partition could be altered to be a different KB size.

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Computer Hardware
Computer Memory
SMS and Texting

How many bits needed to represent 64 characters?

That depends on the character code used:

  • baudot - 5 bits per character - 320 bits
  • FIELDATA - 6 bits per character - 384 bits
  • BCDIC - 6 bits per character - 384 bits
  • ASCII - 7 bits per character - 448 bits
  • extended ASCII - 8 bits per character - 512 bits
  • EBCDIC - 8 bits per character - 512 bits
  • Univac 1100 ASCII - 9 bits per character - 576 bits
  • Unicode UTF-8 - variable bits per character - depends on the characters in the text
  • Unicode UTF-32 - 32 bits per character - 2048 bits
  • Huffman coding - variable bits per character - depends on the characters in the text
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Computer Hardware
Computer Terminology
Computer Memory

How many kilobytes are in a gigabyte?

There are actually two answers to this, depending on what method you want to use to determine the answer.

Standard definition The standard definition for kilobyte is 1,000 (10^3) bytes, just like there are 1,000 meters in a kilometre.

Likewise, the standard definition for gigabyte is 1,000,000,000 (10^9) bytes. Dividing, this means there are 1,000,000 (1 million) kilobytes (kB) in a gigabyte (GB).

This is the definition used for hard drives, portable memory drives (memory cards, USB drives), DVDs, Blu-ray disks, and most measures of performance. Some software (such as Mac OS X and the Linux kernel) uses this definition when displaying file and disk sizes. Memory manufacturer usage Memory manufacturers use a non-standard system that conflicts with the way everyone else measures. By their definition, a kilobyte (written "KB") is 1,024 (2^10) bytes, and a gigabyte (written "GB") is 1,073,741,824 (2^30) bytes.

The correct name for 1,024 bytes is "kilobinary byte" or "kibibyte". The correct name for 1,073,741,824 bytes is "gigabinary byte" or "gibibyte".

This is approximately equal to the above, but you may need to know it to figure out exact numbers:

By this definition, 1 "GB" = 1,048,576 "KB" More correctly, 1 GiB = 1,048,576 KiB

This definition is used by memory manufacturers and some software, like Microsoft Windows.

309310311
Home Electricity
Electronics Engineering
Electrical Engineering
Computer Memory

How does a solid state relay work?

A solid state relay (SSR) is an electronic device to switch the electrical current, rather than an electromechanical device.

An electromechanical relay uses a magnetic coil and mechanical contacts. When current flows through the coil, it pulls down a piece of iron called an armature, causing the mechanical contacts to touch and thus close an electrical circuit.

A solid state relay (SSR) has no mechanical moving parts, but instead uses a three terminal device such as a triac (triode AC), SCRs (back-to-back thyristors), or FET (field effect transistor) to conduct the electrical current. When the third terminal (gate) is energized by the control input, the device conducts.

Essentially the solid state relay controls a larger electrical current by accepting a small control signal. There are no moving parts.

Advantages of solid state relays are: they have no internal arcing or contacts to wear out, can last virtually forever, can have extremely low control input requirements, and are immune to vibration or G-force chatter.

There are 3 installation parameters that must be planned for. Avoid over-amperage (inrush > than SSR rating), over-voltage (voltage surges) and over temperature. Solid state relay has also opto isolation feature. control signal & power line is completely isolated by an internal LED. It is just like a big version of Opto Coupler.

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Computer Memory

What is ram charan tej's favorite colour?

green

305306307
Computer Memory
Intel 8085
Intel 8086 and 8088

How many memory locations can be addressed by a microprocessor that uses 24 bit addressing?

A microprocessor that uses 24 bit addressing, such as the Intel 80286, can address 224 or 16,777,216 memory locations. The IBM MainFrame, 360/44 or any modern version running in AMODE=24 also has the same capacity.

303304305
Microsoft Windows
Computer Memory

The memory address of last location of an 8K byte memory chip is FFFFH. Find the starting address. Will someone Please tell how it is calculated?

The starting address of an 8K byte memory chip that ends at FFFFH is E000H.

8K is 8192 (8 * 1024) which is 2000H. Subtract 2000H from FFFFH, and add 1, and you get E000H.

298299300
Hinduism
Computer Memory

Who was shree ram's wife?

Goddess sita.

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Motherboards
Computer Memory

Can a DDR3 Fit in a DDR2 slot?

nope

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Computer Memory

What is asynchronous memory?

This refers to the fact that the memory is not synchronized to the system clock. A memory access is begun, and a certain period of time later the memory value appears on the bus. The signals are not coordinated with the system clock at all.

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Computer Memory
Hard Disk Drives

Does a hard drive store everything you brouse?

When you browse the internet the web browser stores or remembers where you have been in the history part of the web browser. That history is stored in Random Access Memory until you quit the browser. You can edit or even clear the history of where you have been on your computer. The company that enables the web browser to do its work may be required by Law to record that history

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Motherboards
Computer Memory

Can you put different types of RAM on a motherboard?

To answer your question, let's make something clear: there can be four different things meant when you ask about "different types":

  1. Different technologies: for instance, SDR (Single Data Rate), DDR (Double Data Rate), DDR2 (2nd Generation Double Data Rate), etc.
  2. Different speeds: within a given technologies, the RAM can be built to run at different speeds: 800Mhz, 1066Mhz, 1333Mhz, etc.
  3. Different features: RAM designs have a bunch of other properties, depending on their target audience. Things like ECC (Error Correction), being buffered or unbuffered, are the major extra features.
  4. Different hardware: even if two pieces of RAM have #1 - #3 all the same, it is possible to construct the RAM itself from a variety of different physical chips. For instance, a 1Gbyte RAM module can be made using 8 x 1Gbit chips, or 4 x 2Gbit chips, or 2 x 4Gbit chips.

The short answer to this question (which will satisfy 99% of all computers), is that a computer can use only a single technology and feature set, can use speeds equal to or GREATER than your existing RAM, and can normally use different hardware designs within that technology and feature set.

For instance, the vast majority of systems which are sold as "desktops" (NOT workstations or servers), use a single type of SDR, DDR, DDR2, or DDR3 RAM (these days, it's DDR3, with DDR2 common for machines made in the last 5 years), with the feature set of NO ECC, and NO buffering ("unbuffered"). Very, very briefly around 2000-01, there were some of systems made that had BOTH SDR and DDR sockets - however, only ONE of those two sets of RAM sockets could be used at once, so it wasn't possible to use DDR and SDR RAM at the same time. Systems can use any speed of RAM, but will run at the LOWEST speed of any DIMM used - so, if you have a mix of 800Mhz and 1333Mhz DIMMs, the system runs at 800Mhz.

Please check your motherboard or system documentation. It will explicitly lay out the combinations of the four factors above that can be used in your system. If your motherboard manual doesn't explicitly say it can be used, then DON'T assume it works. If you are unsure, ask your local computer repair store - they'll know for certain.

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Computer Memory

What type of memory as volatile?

RAM is a volatile memory, meaning that it must have a constant supply of power or it will lose the stored data.

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Motherboards
Computer Memory
Intel Microprocessors

What ram is compatible with the Intel D 865 Perl?

PC 3200/DDR 400

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Computers
Computer Terminology
India Colleges and Universities
Computer Memory

How many bits are in a byte?

In the most common definition, there are 8 bits in one byte.

One bit is either a flow of electricity or no electricity. This written as 0 or 1. There are four bits in a nibble and two nibbles in a byte.

8 bits = 1 byte.

1024 bytes = 1KB

1024 KB = 1 MB

1024 MB = 1 GB

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Computer Terminology
Computer Memory
The Difference Between

What are megabytes and megabits?

The prefix mega- means "1 million", and a byte is usually made up of 8 bits, so:

  • A megabit (Mbit) is
    • 1,000,000 bits
    • 1,000 kilobits (kbit)
  • A megabyte (MB) is
    • 1,000,000 bytes (B)
    • 1,000 kilobytes (kB)
    • 8,000,000 bits
    • 8,000 kilobits (kbit)

In some contexts, people in the computing and information technology industry use the prefix mega differently. Because digital computing is based upon a binary numbering system, mega- in many cases meant 1,048,576, while in others it meant 1,000,000.

With the increase in use of, and access to, the technology by persons with little or no education in digital computing, or experience of this historical meaning, the prefixes mega- and kilo- etc. became confusing because of their ambiguous meanings.

With the increase in storage capacities, the discrepancy between the two measurement systems became much larger and more important, and the old meaning of mega in the binary numbering system is now, therefore, formally known as megabinary.

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Mozilla Firefox
Computer Memory

Does bookmarks take up memory?

Yes but very little 500 bookmarks can take space less than 1 MB

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Computer Memory

What is the concept of memory in computer?

The concept was to create a mechanical or electronic device able to store data for later retrieval.

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Computer Hardware
Computer Terminology
Computer Memory

Can you read and write data into ROM?

No, you cannot read and write, only read. ROM stands for "Read-only Memory".

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