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Data Storage Devices
Data storage devices are any piece of computer hardware used to record some sort of information. Questions about storage devices and the media on which they record information belong here.
1,624 Questions
You put the card in the reader, it reads the files and you can open them on the computer.
The size of iPhone apps (and probably all other smartphone apps) can vary from 100 KB to about 300 MB, so the quantity of apps for a 5 GB smartphone varies from 10,000 to 60, depending on the quality of the applications you purchase
What are the different kinds of cold storage?
There are a number of different cold storage options. These include a walk-in cold storage room, a walk-in vault, a free standing freezer, as well as a leased commercial cold storage unit.
How many bytes did early computers have?
I will assume you mean in main memory. Most early computers did not measure memory in bytes, instead in words, as the byte was not defined until the IBM System 360 (which is NOT an early computer) introduced in 1964. Hard disks did not exist until the IBM 305 RAMAC introduced in 1956 (each 350 hard disk on the 305 contained less than 4 Mbytes), most systems used Magnetic tape (the largest tape used was 2400 feet, less than 5 Mbyte).
Some early computers main memory:
- Zuse Z1 - 64 words, ~150 bytes
- ABC - 60 words, ~300 bytes
- Harvard Mark I - 72 words, ~700 bytes
- ENIAC - 20 words, ~100 bytes
- Zuse Z4 - 64 words, ~250 bytes
- EDVAC - 1000 words, ~5 Kbytes
- EDSAC - 1024 words, ~2 Kbytes
- SEAC - 512 words, ~3 Kbytes
- SWAC - 256 words, ~1 Kbytes
- IAS - 1024 words, ~5 Kbytes
- LEO - 2048 words, ~8 Kbytes
- RAYDAC - 1152 words, ~5 Kbytes
- Whirlwind - 256 words, ~512 bytes
- UNIVAC I - 1000 words, ~12 Kbytes
- UNIVAC 1101 - 16384 words, ~48 Kbytes
- UNIVAC 1103 - 17408 words, ~78 Kbytes
- IBM 701 - 2048 words, ~9 Kbytes
- IBM 702 - 10000 characters, ~10 Kbytes
- IBM 650 - 1000 words, ~5 Kbytes
- IBM 704 - 4096 words, ~18 Kbytes
- IBM 705 Model I - 20000 characters, ~20 Kbytes
- IBM 305 RAMAC - 3200 characters, ~3 Kbytes
Why is it hard to shift a 2002 Dodge Ram 1500 between 2 and 4 wheel drive?
your four wheel drive actuator/diaphram located on your front axle is sticking. i had this problem also
RAYGUIVER
What stores information on magnetic cylinders?
Magnetic drum memory or magnetic drum storage, a type of computer memory/storage that is now long obsolete.
An SSD (Solid State Drive) is a type of hard drive that uses no moving parts, but rather stores data on Flash chips, similar to a Flash drive or CompactFlash.
Solid State Drive
Which would be the most suitable output device for an architect to produce large plans?
a wide paper pen plotter
What is Data retention requirements?
Data retention is how long data must be kept available for retrieval if necessary. Each company determines what data retention for each subject matter based on business requirements. Stores data for that includes which stores are most profitable may need to be retained for years to do trend analysis on which stores are most and least profitable. To keep the database from growing too large, the history data can be backed up to tape and stored in an off site vault. If it is needed, when the recovery command is given, it will ask for that tape. Retention can be weeks, months, years.
What is the inboard memory and outboard storage and off-line storage?
1.Inbuilt memory is something thats inbuilt to the processor,meaning the processor can access it directly.
2.Then therez external memory that requires an input/output module to access it by the processor.In it:
(a)Outboard storage:Now this type doesnt reqiure an external device to touch it directly(ex-magnetic disk)
(b)Offline storage:This type requires an external device to touch it directly to access(ex-magnetic tape)
dual purpose devices are the devices that can perform the fuction of input devices as well as output device at the same time
example
disk drive ,cd-writer etc
What is the safeguard of Physical theft of computer hard drives by visitors to company?
Coded access to IT facilities at all times
What type of secondary storage records data in small pits on the reflective surface?
optical. such as cds
Archivist, curators,and museum technicians
Why accessing of data in magnetic tape is slower than hard disk?
- tape : seek time for a record requires moving the tape through the drive until the record's location is found, average seek time will be half the time needed to move the entire tape through the drive; a tape that takes 10 minutes to move all the way through the drive will have an average seek time of 5 minutes.
- disk : seek time for a record requires stepping to the track that holds the record then waiting no more than one disk rotation for the record, average seek time is the sum of the time to step halfway across the disk and the time for the disk to make half a rotation; a disk with 1000 tracks with a 2 ms step time that rotates 100 times per second (10 ms per rotation) has an average seek time of 500 * 2 ms + 5 ms = 1005 ms = 1.005 seconds
The above given numbers are for illustration only and do not correspond to any specific real device,
What does Fully used online storage mean?
Fully used online storage refers to a situation where the allocated storage space in a cloud storage service has reached its maximum capacity. This means that users can no longer upload or save additional files until they free up space by deleting existing content or upgrading to a larger storage plan. It indicates that the storage service is at its limit and cannot accommodate any more data without action from the user.
