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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.
4,434 Questions
How do you use a memory stick as RAM storage?
Plug in you USB flash drive to the USB port and go to MY COMPUTER, then RIGHT CLICK on the DEVICE and click on READY BOOST
How do you transfer images from a camera or memory card to your computer?
My best guess would be to use the usb data cord that may have come with your camera to load pics to your computer. After that,I suggest uploading the pics from the comp to your sd card via usb card reader(you can get them on ebay.ca for $10 including shipping) or at The Source for $20.Hope this helps someone.
On my Nikon Coolpix L11, you put your sd card in, hit menu, then copy. It will then ask you if you want to copy from camera to sd, or reverse. Then it will ask you to choose one photo or select all. It works great, hope it works on your camera too.
Who built the first computer and how it was?
A: For personal computer has to be apple. They had a scheme all set up give the apple to schools for free, WHY? Any computer is worthless unless there is software to run it. So students pick it up and generated simple sometimes useful software to run it. IBM big in sales force but no idea followed to make money walla Microsoft got the contract for DOS disk operating system that Was written in one month but the nerd bill gates. I think that is remarkable What i think remarkable is the insistence of IBM to restrict the memory to 640k They thought that nobody will ever write a program needing all those memories
What is the unit of random access memory?
Random access memory (usually known by its acronym, RAM) is a type of computer data storage. It takes the form of integrated circuits that allow the stored data to be accessed in any order - that is, at random and without the physical movement of the storage medium or a physical reading head. RAM is a volatile memory as the information or instructions stored in it will be lost if the power is switched off.
source: Wikipedia
What are the four stages of computer?
Four stages in development of computer are believed to have emerged yet: 1 The first generation(1946-1958)-The era of vacuum tubes,egs are-ENIAC,UNIVAC-|,EDVAC 2The second gerneration(1959-1964)-The era of the tranisters. 3 The third generation(1965-1970)-Integrated Circuits-Miniaturizing the computer 4The fourth generation(1971-today) The era of microprocessors. That all.Have a nice day.
In computer terms what is a nibble?
In computer terms a nibble = 4 bits = 1/2 byte.
You can further define the data segment as:
Crumb = 2 bits
Nibble = 4 bits
Byte = 8 bits
Word = 16 bits
Double Word=32 bits
Jury still out on 64 bits and Sentence
In keeping with the spelling of "byte", the lick and nibble are sometimes spelled "lyck" and "nybble"
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A nibble is half a byte, but believe it or not, a byte does not necessarily have to have eight bits. I don't know of any computer platform that uses anything but 8 bit bytes these days, but in computer science terms, a byte is generally the smallest addressable element, and the size needed to store a character. You also might be surprised to know that not all machines use ASCII (eight bit bytes) characters. IBM Mainframes still use EBCDIC under their traditional operating systems, and that stands for Extended Binary Coded Decimal Interchange code, which accounted for the lion's share of data until a few decades ago. It's an extended version of BCD, which uses 4 bits to express numbers, and there's no technical reason that a BCD based machine couldn't have 4 bit bytes.
It's unlikely that you will ever encounter a computer that doesn't use eight bit bytes, but you may encounter people who studied computer science back in the 1970s.
Back in the "old" days (the 1960's) when computer's didn't have operating systems or hign level programming languages, you always dealt with the byte. On some machines the byte was 8 bits and on others it was 8 bits + a parity bit for 9 bits. There was "even" parity and "odd parity", meaning you set the parity bit on if an even number of bits = 1 in the original 8 bits, or set it on for an odd number of bits = 1 in the original 8 bits. The "word" was originally set to be the size of a register (everything was done through a set of registers). The registers were used to assemble the current instruction that you wanted the computer to execute (what kind of action, like move a byte, add, subtract etc., plus the final length of your data, which determined how many cycles the computer had to go through to execute your instruction, plus where the data was coming from and going to). The "word" length was pegged to the length of the register, meaning that in treating the computer like a book, each register was a word. Since the first computers were totally byte oriented, a word was 8 bits. When 16-bit registers were implemented, they became 16 bits, then 32 bits and now 64 bits. There are some computers today that even have 128 bit words. So a "word" is the length of the registers in whatever computer you are using. It is also the biggest chunk of bits that the computer can process at one time.
The word "nibble" was invented to specify the high-order 4 bits in a byte or the low-order 4 bits in a byte (like eating a nibble from a cookie, instead of the whole cookie). Since a number can be specified in 4 bits, you only needed a "nibble" to store a number. So, if you had a field that was all numbers, you could write it out in "nibbles", using half the space you would have used if it was in bytes. Back in those days, space counted. The first "mainframe" computers had 4k of memory (no, that really is 4k), so you didn't have any space to waste if you were doing something like payroll or inventory management.
In some cases, individual bits within bytes are used to store flags (yes or no for a given attribute) and, in at least one IBM manual, these were referred to as tidbits. IBM was not known for a sense of humor, but the term never became a generally accepted abbreviation.
I think, if we talked about speed DRAM is much faster that SRAM because DRAM require only one transistor and a capacitor per bit, compared to six transistors in SRAM. That allows DRAM to reach very high density.
If for durability my opinion goes to SRAM.
I based my conclusions from definitions in WIKIPEDIA In terms of speed, Static RAM(SRAM) is faster. Dynamic RAM(DRAM) needs to be refreshed thousands of times per second while Static RAM does not need to be refreshed, which is what makes it faster than Dynamic RAM. Dynamic RAM supports access times of about 60 nanoseconds, Static RAM can give access times as low as 10 nanoseconds. Despite Static RAM being faster, it's not as commonly used as Dynamic RAM because it's so much more expensive.
Which type of memory is primarily used in cache memory?
Cache memory is composed of 2 types of memory:
- RAM (Random Access Memory) this is used to store the data copied from main RAM as a series of Cache Lines
- CAM (Content Addressable Memory) this is used to store the main RAM address for each Cache Line, so the data in Cache Memory can be found and associated with main RAM. The CAM also typically contains special flags (e.g. the "dirty" bit - indicating that the Cache Line has been modified and will have to be written back to main RAM).
Cache memory also contains controller logic to coordinate the necessary actions.
The first computer built to have what we now call Cache memory was the IBM Stretch 7030 introduced in 1961. However IBM at the time called this feature "Virtual memory". (Confusing isn't it?)
How does random access memory work?
Random access memory (RAM) is the best known form of computer memory. RAM is considered \"random access\" because you can access any memory cell directly if you know the row and column that intersect at that cell. When you have programs running ram, stores them, the more ram you have the more applicatios you can have open. Basically the more ram you have the faster your PC, to a certain extent RAM 2 For a more detailed article on RAM, go here: http://computer.howstuffworks.com/ram.htm
Can you wipe your hardrive without rebooting your computer?
Insert hard drive CD when you start up your computer. Check box when it asks you if you want to delete and re-use your hard drive. When completed, insert your OS CD, and money in the bank... if you want a quick re-format, dont insert the hard drive CD on startup.. just insert the OS CD on start up.. it will do a quick reformat that will give you results until you can find your hard drive CD if you dont have one.
You can also use DBAN or wipedrive - both these free and paid for products will erase / wipe your hard drive to DOD standards.
Be more specific please. If you mean deleting all the files, the best method i would suggest is to reinstall the OS.
A bus transfer is basically proof that you paid. It is also used whenever you need to take two buses to get to your destination. For example, if you need to go northeast then you'll probably need to take two buses.
You pay the price for the first bus you get on and ask the bus driver for a transfer after you pay. After you get off the first bus and get onto the second bus, you just need to show the transfer to the bus driver and he or she will let you in unless it is expired because there's a one-hour time limit. If you're not sure what I'm saying, you can ask the bus driver for a transfer and look at the back of it. There's usually some information about how to use it.
RAM stands for Random Access Memory, and is the thinking space for a computer. Note that it doesn't acctually do anything by itself, it is merely a short term memory for the CPU.
(Do you know how to use Google?)
1.4 times more expensive 2.Very low access time 3.Information stored as voltage level in a flip flop. 4.used in cache memory 5.high cost 6.Information stored on RS flip-flops 7.small storage capacity 1.looses its signal 1 becomes 0 2.periodic refreshing of memory is needed. 3.These are mostly made of capacitors. 4.Information is stored as a charge in the gate to substrate capacitance. 5.used in main memory 6.low cost 7.comparitively high storage capacity
Why is adding RAM a performance advantage?
Computers with more RAM can handle more information without crashing. Computers have to store all of the data coming from all the the devices in the computer until the processor can process the data and this data is stored in the RAM. If you have small amounts of RAM, it will fill up and then all the devices pause until the RAM has more room for data. So the more RAM that a computer has the less waiting the devices have to do on account of the CPU having data already waiting to be processed. daman155 In most modern systems using Windows XP, Linux, etc.. more RAM is better. This enables the system to keep more applications and data such as documents spreadsheets and Internet pages in the systems main storage area, which is RAM. When you have more applications and data loaded than can fit into RAM, the system will remove what it sees as idle data not being immediately used and move it from ram to "Virtual Memory" on your hard disk. This "Virtual Memory" or Swap Space is VERY SLOW. This means when you go back to what was deemed idle memory, it takes awhile to swap back into RAM. So unless you run out of both RAM and disk space, you may not crash, but without more RAM you will not be able to open as many applications or documents as you may like. --Veggivore--
Short note on motherboard of computer?
motherboard is a most important part of system.Motherboard also now as main board or main CKT board or plaenboard all the component of system intrigrated are attached vaya motherboard.
What is an escape character in Java?
The escape character, the back slash: \, is the character that signals the following character is not what it normally means, i.e. as a reserved symbol, or as a new symbol.
The uses of the escape character include:
In Strings when " or ' is a required part of the string
String example1 = "She said,"Hello""; //the escape sequence signifies the " is actually //a " not the end of the String literal.
In Formatting Strings
\n means new line
\t means tab
i.e.
System.out.println("Hello\nHow are you?\tFine thank you.");
// Prints
// Hello
// How are you? [tab] Fine thank you.
And of course the really idiosyncratic one:
When the back slash is essential to a string, and you don't want it to be a escape character:
\\ means \
i.e.
System.out.println("\");
// Prints \
Difference between register and memory?
Registers are storage locations internal the the processor. CPU instructions operate on these values directly. On RISC processors, all data must be moved into a register before it can be operated. On CISC (Intel) chips, there are a few operations that can load data from RAM, process it, and save the result back out, but the fastest operations work directly with registers.
Also, there are registers that are set aside for certain tasks, these generally include a program counter, stack, and flags.
Each register also has a size that determines the maximum amount of data that can be processed at a time. The registers on Pentium chips, for example, are 32 bits.
Finally, there are generally only a few registers available on a processer. Intel chips, for example, have 6 general purpose registers, and several specialized registers including a base register, stack register, flags register, program counter, and some addressing registers.
Memory, or RAM, is located external to the CPU. Generally speaking, data has to be loaded into a CPU register from memory before the CPU can process it, RAM is much slower than registers, there is a lot more RAM than registers, and generally memory can be addressed on a byte boundaries, where registers may not be able to access all the bytes in a register.
To summarize: in general, registers are temporary storage in the CPU that holds the data the processor is currently working on, while RAM holds the program instructions and the data the program requires.
Hopefuly this helps,
--Eric Tolman
If we use 7 binary digits (Computers counting systems is binary) we end up with 127. That isn't enough to hold all the characters. So we make it 8 binary digits. The maximum number for 8 binary digits is 11111111. Which in our counting system is 255.
AnswerASCII is a 7-bit character encoding, so it has only 128 codes: 0 through 127. The upper 128 codes in an 8-bit byte (128 through 255) are unused and undefined by ASCII, but many ASCII extensions (such us ISO-8859-1) make use of those unused codes.What commands clear the computers memory?
When you turn it off, all memory is lost. You usually end up with pseudo-random patters.
To actively clear all mem would require a machine language program ... which would be wiped in the process.
The RAM is like a dish holder. When required the disk is used and when the process is complete we keep the dishes back in its place again. Imagine the dishes to be empty spaces in the RAM. When a software or a program wants to run then a dish is utilised in the process and when the program is terminated the dish is again placed back in its place so that other programs can utilise the free space.
it have 40 pins 1st one is ground
and last one is Vcc. Itplh = 450
What are the functions of DRAM memory?
Main memory is the storage that is directly available to the CPU of a computer and is made3 up of RAM and ROM. RAM's (Random Access Memory) purpose is to hold the data and instructions temporarily which the CPU will process. ROM's (Read Only Memory) function is to hold data necessary for starting up the computer permanently , whose contents cannot be changed by the user.
Explain the concept of memory interleaving?
Interleaving is an advanced technique used by high-end motherboards/chipsets to improve memory performance. Memory interleaving increases bandwidth by allowing simultaneous access to more than one chunk of memory. This improves performance because the processor can transfer more information to/from memory in the same amount of time, and helps alleviate the processor-memory bottleneck that is a major limiting factor in overall performance.
Microsoft Word and Word Perfect are two types of word Processing systems. There are others out these but these are just two examples.
Which of the following types of memory contain data that cannot be modified by the user?
Pick one:
ROM, PROM, EPROM
write-protected magnetic disk/tape, CD-ROM, DVD-R
write-protected partition/file, other user's or sysadmin's file
code-segment, read-only data-segment, other user's or kernel's code- or data-segment
