Chapter 10 Flashcards
Peripherals
Devices that separate from basic computer, not CPU, memory, or power source
Types of Storages
Primary memory and Secondary Storage
Average Transfer Time Formula
1/(# of sectors * rotational speed)
Total Time to access disk block formula
Avg. seek time + avg. latency time + avg. transfer time
Solid State Memory
Nonvolatile electronic integrated circuit, Ex, used in cellphones, USB thumb drives
CAV (Constant Angular Velocity)
Number of bits on each track
CLV (Constant Linear Velocity)
All tracks have same physical length and number of bytes
Flash Memory
Basically Solid State Drive
Seek Time
Time required to transfer a block of data to the disk controller buffer
RAID
Redundant Array of Inexpensive Disks
What is the size of picture calculation?
Ex, 100 pixels by 50 pixels, 4 bits required for 16 colour image 100 * 50 * 4 bits = 20, 000 bits