[ITF+] Units 13 and 14 Review

System memory stores programs and data on a memory chip, but only when:

• The power goes off.

• You click Save.

• When you log on.

• The computer is running.

DRAM (Dynamic RAM) is an outdated form of RAM no longer in use.

• True

• False

DRAM (Dynamic RAM) and Synchronous DRAM (SDRAM) chips offer options on RAM speed and memory.

• True

• False

When the power goes off on a computer, what happens to the data stored in RAM’s volatile memory?

• It is redirected to the CPU.

• It is lost.

• It is redirected to the CMOS, which is battery-powered.

• None of these

DDR SDRAM differs from SDRAM in what way?

• DDR SDRAM is smaller than SDRAM and fits better in a laptop.

• SDRAM is twice as fast as DDR SDRAM.

• DDR SDRAM is twice as fast as SDRAM.

• SDRAM is smaller than DDR SDRAM and fits better in a laptop.

A mass storage device, or fixed drive:  

• Stores the OS and application files as well as user data.

• Are housed in server farms for enterprise-level computing.

• Is a form of volatile storage.

• Is rarely used.

HDDs are designed never to wear out.

• True

• False

Data on an HDD is encoded magnetically on specially coated glass or plastic platters that:

• Copy and paste the data from the disk to the HDD.

• Spin at very high speeds while drive heads access the data.

• Significantly increases the speed and performance of the computer or laptop.

• Validates software licenses.

The faster the revolutions per minute (RPM) of the spinning disc, the faster the drive performs.

• True

• False

Solid State Drives (SSD) use non-volatile memory technology called flash memory.

• True

• False