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IT - Unit 1 Fundamentals of IT > 1.2 Computer Components > Flashcards

1.2 Computer Components Flashcards

1
Q

Name 3 Components of the computer

A

Processor
Motherboard
Power supply unit
Memory
Secondary storage

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2
Q

What’s the main role of a processor

A

Manages the functions of computer system by processing data and instructions

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3
Q

What is the Motherboard

A

The main circuit board of a computer - components such as CPU and ROM are connected

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4
Q

What does the PSU do

A

Converts electricity from Alternating Current from the mains power supply to Direct current which the computer system can use

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5
Q

What are 2 types of Memory

A

Volatile
Non volatile

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6
Q

What is Volatile

A

Temporary - data is lost whenever the power is turned off

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7
Q

What is Non volatile

A

Long term - saves data even when power is off

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8
Q

What is RAM

A

Volatile
Stores all programs that are currently running
Stores pats of the operating system to be accessed by the CPU
Each RAM location can be identified by unique address

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9
Q

What is ROM

A

Non Volatile
Can’t be changed
Stores the boot program/ BIOS for when computer is on
BIOS then loads up the operating system to take over managing the computer

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10
Q

What is Cache Memory

A

Volatile
Stores data that is frequently accessed
Very quick to access - its closer to the CPU

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11
Q

Name all 4 Secondary storage

A

Magnetic Storage
Optical Storage
Solid State Storage
Cloud Storage

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12
Q

Give Examples of Magnetic Storage

A

HDD - Hard Disk Drive
Magnetic Tape - has high capacity storage, has to be accessed in order
Floppy disk - obsolete

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13
Q

Adv and Disadv of Magnetic Storage

A

A - Large capacity
A - Cheaper per GB than SS
A- Relatively quick access sped but slower than SS

D- Not Durable
D - Not Portable when powered on because moving it can damage the device

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14
Q

Examples of Optical Storage

A

CD
DVD
Blu-Ray

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15
Q

Adv and Disadv of Optical Storage

A

A- Discs are thin + very portable
D- Low capacity
D - Not durable - fragile + can break/scratch easily
D - Slowest access speed

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16
Q

Examples of Solid State Storage

A

USB flash drive
Memory card (SD card)

17
Q

Adv + Disadv of Solid State Storage

A

A - Durable
A - Portable - small size
A - Fastest access speed - No moving parts
A - High capacity
D - More expensive

18
Q

Examples of Cloud storage

A

Google Drive
Dropbox
iCloud

19
Q

Adv + Disadv of Cloud Storage

A

A - Huge capacity - can upgrade
A - Convenient - allows ppl to work on the same file at the same time
D- Requires internet connection

20
Q

2 Types of Storage protocols

A

SCIS - Small Computer System Interface
SAS - Serial Attached SCSI

21
Q

What is SCIS

A

A protocol for attaching external devices to a computer system, such as printer, scanners

22
Q

What is SAS

A

An improved version of SCSI that enables many more external devices to be connected at the same time to a computer system

23
Q

Types of Expansion Cards

A

Graphics Card
Network Interface Card - NIC
Fibre Channel Card
Sound Card
Storage Controller Card

24
Q

What is Graphics Card

A

Processes graphical data + converts it into a displayable output on a monitor

25
Q

What is NIC

A

Allows computers to connect to networks and enables them to transfer data to other computers

26
Q

What Is Fibre channel card

A

Transfers data between servers across a network
> allows for quick transfer speeds
>connect data storage to servers

27
Q

What is Sound card

A
  1. Inputting audio = SC convert analogue sound waves into digital data
  2. Outputting audio = SC convert digital data to analogue sound waves
28
Q

What is Storage Controller Card

A

Manages and use any attached storage devices

29
Q

What is a Port

A

The interface between external device and the computer
> allows data to be transferred to + from

30
Q

What is USB Port

A

> Connects storage devices (usb sticks)
connects input devices (keyboard)
data transfers

31
Q

What is Firewire port

A

> Transfers data at a high speed (ext. hard drive)

32
Q

What is SD Port

A

Enables data from SD card to be transferred (to camera)

33
Q

What is Ethernet Port

A

Connects comp to network devices&raquo_space; allowing access to internet

34
Q

What is SATA Port

A

Allows data transfer to ext HDD / SSD

35
Q

Micro SD Port

A

Allows data from Micro SD Card to be transferred (from + to smartphones)

IT - Unit 1 Fundamentals of IT (6 decks)

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