Table of Contents
- 1 Which of the following is an advantage of portable hard disks and removable hard disks?
- 2 What term refers to the amount of time it takes a storage device to locate an item on a storage medium?
- 3 Which device has more storage capacity?
- 4 What are 3 examples of optical storage?
- 5 Does a computer accept data called output?
- 6 What are the 3 types of storage?
- 7 Which is a better storage technique CD ROM or tape?
- 8 Why does a DVD have more storage space than a CD?
Which of the following is an advantage of portable hard disks and removable hard disks?
Additional Storage Portable hard drives can provide much more space, freeing up room on the main computing system. With capacities of 80 GB to over 1 terabyte, external hard drives allow an even greater storage space for digital media such as photos, music and home movies.
What is optical storage technology?
Optical storage, electronic storage medium that uses low-power laser beams to record and retrieve digital (binary) data. In optical-storage technology, a laser beam encodes digital data onto an optical, or laser, disk in the form of tiny pits arranged in a spiral track on the disk’s surface.
What term refers to the amount of time it takes a storage device to locate an item on a storage medium?
What term refers to the amount of time it takes a storage device to locate an item on a storage medium? Access time.
Which term is used to describe number of bytes a storage medium can hold?
Cards
| Term ______ is the number of bytes (characters) a storage medium can hold. | Definition Capacity |
|---|---|
| Term A storage medium is also called primary storage. | Definition false |
| Term ape storage requires ______ access, which refers to reading or writing data consecutively. | Definition sequential |
Which device has more storage capacity?
A correct answer is option (C) Hard disk. A hard disk is a storage device that can store the maximum amount of data.
What are two advantages of the external hard disk over internal hard disk?
Benefits of External Hard Drives
- Storage Capacity. One reason for using an external hard drive is to increase your storage capacity.
- Backup Drive.
- Improved Performance. Using an external drive as your boot (or main) drive can speed up the performance of Macs with slower internal drives.
- Portability.
- Longer Life.
What are 3 examples of optical storage?
Examples of Optical Storage Devices
- CD-ROM. CD-ROM stands for “Compact Disc Read Only Memory”, and CD-ROM comes in the “Random Access” category’s devices.
- DVD-ROM.
- Blue Ray.
- HD DVD.
- DVD-RAM.
- CD-R & DVD-R.
- CD-RW & DVD-RW.
What are the advantages of optical storage?
Optical media offer the following advantages for storing data over conventional magnetic disks:
- Mass storage capacity (on the order of gigabytes)
- Mountable/unmountable storage units.
- Low cost per bit of storage.
- Long media life.
- High data stability.
Does a computer accept data called output?
A computer is a machine that can be programmed to accept data (input), process it into useful information (output), and store it away (in a secondary storage device) for safekeeping or later reuse. The processing of input to output is directed by the software but performed by the hardware.
What measures the amount of time it takes a storage device?
Storage Access Times Access time is defined as the speed of the memory and the storage medium. Access time of memory is faster than the storage medium. Amount of time required for delivering an item from memory to the processor. Hence, the correct option is c) Access time.
What are the 3 types of storage?
There are three main types of data storage on the market: cloud-based, server-based (also known as hyper-convergence), and traditional.
What are examples of storage devices?
Magnetic disks,Tapes and DVDs is an example of storage devices.
Which is a better storage technique CD ROM or tape?
A storage technique that a _______ can use to achieve a higher storage capacity than a CD-ROM is to make the disk denser by packing the pits closer together, use two layers of pits and are double-sided. A tape ____ is a small, rectangular, plastic housing for tape.
Why is a CD ROM called a CD?
A standard CD-ROM is called a ____ disc because manufacturers write all items on the disc at one time. A storage technique that a _______ can use to achieve a higher storage capacity than a CD-ROM is to make the disk denser by packing the pits closer together, use two layers of pits and are double-sided.
Why does a DVD have more storage space than a CD?
The DVD format doesn’t waste as much space on error correction, enabling it to store much more real information. Another way that DVDs achieve higher capacity is by encoding data onto a slightly larger area of the disc than is done on a CD. To increase the storage capacity even more, a DVD can have up to four layers, two on each side.
How many layers of storage does a DVD have?
To increase the storage capacity even more, a DVD can have up to four layers, two on each side. The laser that reads the disc can actually focus on the second layer through the first layer.