Module 4 Unit 4: Using Storage Devices

Question 1

the main storage area for programs and data when the computer is running

Answer 1

System memory

Question 4

determines a computer’s ability to work with multiple applications at the same time and manipulate larger files

Answer 4

RAM size

Question 4

Why is system memory important?

Answer 4

It’s much faster than accessing data in a mass storage system

Question 4

System memory is a type of volatile memory called __________

Answer 4

Random Access Memory (RAM)

Question 5

If there is not enough system RAM, the memory space can be extended by using what?

Answer 5

Virtual memory (disk space)

Question 6

System RAM is a type of RAM called __________.

stores each data bit as an electrical charge within a single bit cell

Answer 6

Dynamic RAM (DRAM)

Question 7

Common type of DRAM in the mid-1990’s used for system memory

Answer 7

Synchronous DRAM (SDRAM)

Question 8

an updated type of SDRAM featuring “double pumped” data transfers

64 bits of information are transferred at the start of a clock cycle then another 64 bits at the end.

Answer 8

Double Data Rate SDRAM (DDR SDRAM)

Question 9

DDR2, DDR2, and DDR4 increase bandwidth by increasing what?

Answer 9

Bus speed

Question 10

provides non-volatile storage where the data is preserved when the power is turned off.

Answer 10

Mass Storage Device

Question 11

one of the most widely used type of mass storage device

data is encoded magnetically on specially coated glass or plastic platters accessed by drive heads.

Answer 11

Hard Disk Drives (HDD)

Question 12

how is HDD performance measured?

Answer 12

How quickly it can read and write data