3.4 select, install and configure storage devices Flashcards
Optical drives do what?
They use a laser to read and/or write data to an optical disk. Examples include CD-ROM/CD-RW.
What is the difference between CD-ROM and CD-RW?
Compact disc-read only memory (CD-ROM) stores data, but you cannot write to it.
CD-RW is rewritable, so you can write data to it multiple times.
What is the storage capacity of a CD?
CDs store up to 700 megabytes of data.
What are the differences between DVD-ROM, DVD-RW, and DVD-RW DL? What are their storage capacities?
DVD-ROM- Can only be read. 4.7 GB
DVD-RW- Can be read or rewritten once edited. 4.7 GB
DVD-RW DL- RW with dual-layer, has almost double storage capacity of normal DVD. 8.5 GB
What is the difference between BD-R and BD-RE?
Blu-ray disc recordable (BD-R) is a Blu-ray disc that you can write to only once.
Blu-ray disc recordable erasable (BD-RE) is a Blu-ray disc that you can write to multiple times.
Both have a max capacity of 25GB, 50 gigabytes, for a dual layer Blu-ray.
If you have a desktop or a laptop computer, you probably have a ___ inch SSD.
SATA 2.5
___ use non-volatile RAM to store data. There is no disk and no moving parts, tends to be more reliable than disk drives. Access times are faster than disk drives.
Solid-state drives (SSD)
___ is a form factor for SSD. It is 22 mm wide and can vary in length. The most common lengths are 80 mm and 60 mm. It is referred to as “gumstick memory” because its size is similar to a stick of gum.
M.2
M.2 drives plug in to SATA ports on the motherboard.
T/F?
False, M.2 drives plug into only M.2 slots on a motherboard. Have no cables, fast as or faster than SATA. PCI express bus connection.
Motherboards need to be compatible with the slot ___ on the M.2 drive. Some motherboards support both.
key/spacer (M key, B key)
B keys support the use of ___ lanes of the PCI express bus at a maximum, while M keys support ___ lanes.
two
four
If you had a laptop with a small magnetic disk HDD and wanted an increased performance at the cost of storage quantity, what specific storage would you likely want to replace it with?
SATA 2.5 inch SSD,. It is solid-state memory in the same size case as a 2.5 inch magnetic hard drive.
___ is a form of memory that uses the M.2 form factor. It is the fastest SSD available today.
NVME (Non-volatile memory express)
The SATA 2.5 SSD was designed to ___.
** replace a 2.5-inch magnetic hard drive**.
SSHD has the same form factor as ___.
HDD (2.5 and 3.5 inch)
