T1 - MS Flashcards

1
Q

Explain why having a dual core processor might improve the performance of the computer. (2)

A
  • Dual core is 2 processors/cores //
    double the number of processors/cores
  • Parallel processing can take place
    … which means each processor can
    execute a separate instruction at the
    same time
    …which enables multitasking
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2
Q

Explain how the cache size can affect the performance of the CPU. (2)

A

Cache stores frequently/recently/next
to be used instructions/data
…that can be accessed faster than
accessing them from RAM

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3
Q

State the purpose of a CPU. (1)

A

CPU performs the FDE cycle
or
Process instructions

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4
Q

State what is meant by a single core 2.5 GHz processor. 2`

A

Single core means there is only one
processor
2.5Ghz means it can run 2.5 billion
FDE cycles per second

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5
Q

Identify two registers used in Von Neumann architecture.

A

MAR
MDR

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6
Q

Embedded system

A

Embedded system has one/few
functions

Embedded system is single chip

Embedded system is part of a larger
system

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7
Q

CU

A

runs FE cycles

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8
Q

MAR

A

Stores the
address of the
data to be
fetched from, or
the address
where the data
is to be stored.

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9
Q

PC

A

Stores the
address of the
next instruction
to be fetched
from memory.
Increments in

each fetch-
execute cycle.

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10
Q

Give one difference between RAM and flash memory.

A

RAM is volatile // Flash memory is non-
volatile

RAM stores currently running
programs/instructions/data/OS // Flash
memory stores files and software

RAM can be directly accessed by CPU
// Flash data has to go to RAM before
CPU

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11
Q

Describe the purpose of ROM in a tablet computer. 2

A

Store BIOS
… the boot-up instructions

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12
Q

Describe what the internal secondary storage device will store.

A

Software / applications / programs
…including OS

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13
Q

Give three benefits of the tablet having a solid state device instead of a magnetic device.

A

faster access/read/write speed

Smaller in physical size

More durable/robust

Uses less power

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14
Q

Give two drawbacks of the tablet having a solid state device instead of a magnetic device.

A

limited number of read/write times
more expensive (per byte)
(usually) smaller capacity

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15
Q

State the difference between RAM and ROM.

A

ROM is non-volatile, RAM is volatile //
by description

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16
Q

Give two examples of data that a smart television could store in RAM.

A

(Parts of the) operating system
currently running

Current video/film/tv program being
watched