Answered Essay: Computer information systems….Completely over my head

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Computer information systems….Completely over my head

(1 point) __________ has three levels and is a special type of high-speed memory that improves the efficiency of a processor.
RAM
CPU cache
ROM
RISC
(1 point) ________________________ is volatile and holds data, programs and the operating system.
ROM
RISC
RAM
CISC
(1 point) __________________________ is a type of permanent and non-volatile memory found on the system board.
ROM
RISC
RAM
CISC

(1 point) Most RAM is _________________, which means it requires electricity power to hold data.
non-volatile
volatile
dedicated
secondary storage

(1 point) _____________________ storage stores data by magnetizing microscopic particles on a disk surface.
electronic
optical
magnetic
SSD

(1 point) A(n) ___________________contains one or more platters and their associated read-write heads.
multi-level drive
optical drive
hard-disk drive
SSD

(1 point) A hard disk with the specs “2 TB 8 ms 7200 RPM” has a spin rate of ____________________________.
7200
8 ms
2
16 t/ms

(1 point) A double layer DVD can store ___________________ of data.
750 MB
1 TB
8.5 GB
4 GB

(1 pointCD, DVD and Blue-ray technologies are types of ______________ storage.
primary
optical
magnetic
cloud

(1 point) ____________________ storage uses erasable, rewritable circuitry to store data.
Primary
Magnetic
Sequential
Solid state

Expert Answer

 

Hi,
1. CACHE- we have 3 levels in cache L1,L2 and L3 which are used in front of main memory mainly because of their faster access.
2.RAM- random access memory is the memory circuit that holds data, program instructions and the operating system while the computer is on. RAM holds raw data that is waiting to be processed, as well as the instructions that will process the raw data.
3.ROM- read only memory is a permanent and non volatile memory containing permanent instructins used during boot process.
4.Magnetic storage- is the type of memory that stores data on disk via magentizing them ex: hard disk, floppy etc
5.Hard disk drive HDD contains platters and is the main storage device on most of the computers.
6.Here 7200RPM means revolutions per minute, hence the spin rate is 7200RPM
7.double layer or dual layer dvd can store double the capacity of a single layer (4.7) making it 8.5GB
8.DVD and bluray come under the Optical disc type of storage- Thedata is stored on the disc with a laser or stamping machine
9.SSD is the newest storage technology which stores data in erasable rewritable circuitry
Thumbs up if this was helpful, otherwise let me know in comments. Good Day.

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