Understanding types of memory Flashcards

1
Q

DRAM

A

Constantly refreshed, goes by address row and column

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2
Q

SRAM

A

Sram - used for cache memory, holds info in memory celss, helps find info faster, doesnt need to be refreshed. refreshed at the systems speed

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3
Q

CMOS RAM

A

stores configuration memory,

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4
Q

VRAM

A

video , pixels, audio helps speeds up

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5
Q

The purpose of memory

A

supports work area of the computer
increases the speed
less work, more space

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6
Q

2 types RAM

A

Rom - Rom helps boots

Ramm is erased when the computer cuts off

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7
Q

Data is measured in what?

A

Data measured in nano/secs..

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8
Q

CMOS needs power ___

A

because it maintains info from the battery

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9
Q

VRAM can be read and ___

A

written

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10
Q

ROM =

A

Read only memory

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11
Q

EPROM =

A

(erasable programable rom)- Can be used to make update bios

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12
Q

EEROM

A

(flash rom) - runs software for the manufacture

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13
Q

Erasable programmable ROM (EEPROM) called flash ROM runs software from the manufacturer. It is used to update what?

A

Bios

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14
Q

what is parity?

A

Verifies info, read at a later time

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15
Q

What does a parity error indicate about the memory?

A

There is an issue with the intergity of the data

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16
Q

Non-parity memory is not used to perform

A

error checking against the information that is “read” compared to what is “retrieved”.

17
Q

In random access memory, the lower the number of nanoseconds the better the what?

A

Perfomace

18
Q

Software that is written to a read-only memory chip is called _______.

A

firmware

19
Q

How many DIMMs are required to fill a bank?

A

one