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GCSE OCR Computer Science Paper 1 Flashcards | StudBud
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GCSE OCR Computer Science Paper 1
GCSE OCR Computer Science Paper 1
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#GCSE #OCR #computer #science #9-1 paper 1. #computing
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1
The programs or applications that a computer system runs:
software
hardware
2
RAM is...
high speed memory
slow memory
3
Four characteristics of secondary storage devices:
Size, speed, portability, cost
Size, mobility, portability, capability
Mobility, portability, moveability, transportability
Durability, capability, speed, cost
4
ROM is...
secondary storage
primary storage
5
Embedded systems are dedicated to a single task, therefore...
they get depressed easily.
they are usually easier to design.
they are cheaper to produce.
they’re more efficient at doing their task than general coms
6
What keeps the CPU at a steady temperature?
cooling fan
heat sink
thermoregulation
motherboard
7
Computers inside a larger system are...
specialised computers.
embedded systems.
8
Describe how the ALU and Accumulator work together in the CPU.
ALU performs logical operations and accumulator stores them
Accumulator stores data 4 ALU to perform logical operations.
ALU stores data 4 accumulator to perform logical operations.
Accumulator performs logical operations and ALU stores them.
9
What is used for read/writing of optical discs?
CD-RW
hard disk drive
optical drive
motherboard
10
ROM stands for...
human rights because that’s always been his passion.
Random Ovasive Memory
Read Only Memory
Random Origin Memory
11
The cache is...
much slower than RAM
much faster than RAM
12
wap
allows individual devices to connect to network
carries data between devices on network
directs data on network
13
True or false? Each core in a CPU can process data independently of the rest.
true
false
14
Registers used in Von Neumann Architecture.
PC
Accumulator
MAR
MDR
15
peer to peer...
creates copies of files between computers
stores one file centrally
16
true or false: the internet is the same as the www
true
false
17
How many MB in 1GB?
1000
0.1024
1024
0.1
18
How many bits in a nibble?
2
8
4
6
19
Which of these is not an input device?
Speakers
Mouse
Touch screen
Keyboard
20
What hardware is the internal secondary storage?
ROM
hard disk drive
virtual memory
motherboard
21
Why is multitasking needed in an OS?
Enables user to be more productive.
Shares processing time between programs.
Allows more than one program to run at the same time.
22
RAM stands for...
Random Access Memory
Read and Access Memory
Random A$$ Memory
Read Aloud Memory
23
Why do computers need systems software?
To provide an interface between software and hardware.
For the same reason you need your mother
24
How much data does a CD hold (roughly) ?
700GB
700MB
70MB
70GB
25
Which is not a function of an OS?
File and memory management
Provides a platform for applications
Provides a user interface
To provide a space to store hardware
26
Some CPUs can be overclocked to make them run at a higher...
bit rate
clock speed
dpi
27
What stores the result of arithmetic calculations?
ALU
Accumulator
28
ethernet cable
directs data on network
allows individual devices to connect to network
carries data between devices on network
29
Files on hard disk moved, empty spaces collected together, files moved together. C’est quoi?
disk defragmentation to overcome the issue of slow computer
file sorting, to organise the files
30
RAM...
requires power to retain its data.
keeps its contents even when it has no power.
31
Pick the one that doesn’t answer the question: describe what is meant by quad-core CPU.
The cores work at different times.
The cores can perform multiple tasks.
The cores are independent processors within the CPU.
The computer has 4 cores.
32
What is needed to successfully overclock a CPU?
high performance cooling system
large cache size
more than one core
patience
33
Gareth has a sat nav. Which of these statements is false?
RAM holds copies of open routes and maps.
The contents of RAM is lost when the sat nav is turned off
ROM holds copies of open maps.
ROM stores the boot up sequence of the sat nav
34
How many MB in 1KB?
0.1
0.01
0.0001
0.001
35
hardware needed for wan
wap
nic
router
36
hardware needed for lan
wap
ethernet cable
nic
37
Drawback of cloud storage.
Need internet connection to access.
Cloud storage system would likely charge subscription fee.
Quick to access individual files.
Data is vulnerable to hacking.
38
Which security measure would an OS not provide?
user account control / access levels
data encryption
men in black suits stood by the doors ready to knock u out
retina scanner
39
true or false: the internet is a lan
false
true
40
causes of poor WiFi signal
the wifi just isnt feeling up to the job that day
objects/walls between device and wap could obstruct signal
additional nearby network cud b using same/overlapping chanl
devices could b far away from wap
41
Topology?
mesh - every computer is connected to each other
star - see the lovely star in the middle? 🥰👌
42
Non-volatile memory is...
permanent memory
temporary memory
43
What is the number of instructions a single processor core can carry out per second (Hz)?
clock speed
cache size
44
Difference between level 1 and level 2 cache?
Level 2 is quicker than level 1.
Level 1 is quicker than level 2.
45
benefits of LAN
can share hardware
i want to sleeeeeep
can share files
46
Drawback of magnetic tape
It is always accessible.
Very cheap per GB
Used sequential access, so slower to find specific file.
Easily destroyed in fire.
47
LAN
its the day before my exam and i know nothing woop woop
computers are connected to each other
restricted to small geographical area
gosh im tired
48
What is the main circuit board in the computer, where the hardware is connected?
multilayer PCB
single sided PCB
motherboard
ALU
49
CPU stands for...
Computer Processing Unit
Central Programming Unit
Computer Programming Unit
Central Processing Unit
50
To recap: hardware is...
the physical stuff that makes up the computer system.
the applications that a computer system runs.
a computer that runs something physical, e.g. robot.
the material that a computer is made of.
51
What is the most important component, that does all the processing?
ALU
CPU
motherboard
CU
52
Describe the purpose of virtual memory.
Allows user to run programs there is insufficient RAM for.
Boot up computer.
Allows her to run more programs simultaneously with less lag
Keeps her memories virtually in case she gets amnesia.
53
Benefit of magnetic tape
It is always accessible
Very cheap per GB
Tape uses sequential access, so slow to find specific file,
Easily destroyed in fire.
54
RAM is slower than (1), but way faster than (2).
(1) secondary storage (2) CPU cache
(1) ROM (2) CPU cache
(1) CPU cache (2) volatile memory
(1) CPU cache (2) secondary storage
55
RAM is..?
volatile memory
non-volatile memory
56
How many KB in 1MB?
1024
1.024
1000
0.1
57
The purpose of a computer is to...
take data, process it, then output it
output data then retake it and process it
take data, output it, then process it
play Minecraft
58
How many bits in a byte?
4
8
2
10
59
PC...
stores the data that has just been fetched.
is incremented each time an instruction is run.
stores the address where the next data will be fetched from.
stored the address of the next instruction to be run.
60
Why doesn’t doubling the amount of cores double performance?
Not all processing tasks can be split evenly between cores.
keine Ahnung
Software needs to be designed to use multicore processing.
61
Explain how cache size affects CPU performance.
More cache CPU has, the less time is spent accessing memory
is incremented each time an instruction is run.
Cache is stored just outside CPU.
Cache is faster than memory.
62
True or false? Doubling the number of cores doubles performance.
false
true
63
What extracts hot air from the computer case?
case cooling fan
CPU heat sink
64
MAR...
stores the address of the next instruction to be run.
stores the address where the next data will be fetched from.
stores the data that has just been fetched.
is incremented each time an instruction is run.
65
Volatile memory is...
temporary memory
permanent memory
66
What supplies power to the motherboard, optical and hard drive, and other hardware?
yo mama
power supply
electricity
67
What does antivirus software do?
scans the computer periodically to check for harmful code
like antivaccers but for viruses
68
How do the CPU AND RAM work together?
data is stored in RAM which is fetched by CPU
RAM decodes data in fde cycle
CPU holds data for RAM while RAM holds something else
69
_____ doesn’t need to be frequently accessed.
secondary storage
primary storage
70
ROM...
keeps its contents even when it has no power.
requires power to retain its data.
71
Identify an event that does not take place during the fetch-execute cycle.
Address of instruction to be fetched is placed in MDR.
The program counter is incremented.
An instruction is fetched from memory then decoded.
Decoded instruction is executed so CPU performs continuously
72
How many bytes in a nibble?
0.1
0.5
10
0.75
73
WAN
i actually spent a whole day making this kahoot
dont cram on the last day kids
communication medium is not owned by owner of computers
computers are geographically remote
74
Which of these is a characteristic of Von Neumann Architecture?
Data and instructions stored separately.
Data and instructions stored together.
75
Which one does not describe an effect of installing a solid state drive instead of magnetic?
Quicker to boot up computer
Faster access than magnetic drive
Quicker to load programs or files
Moving parts
76
How many bytes in 1MB?
100,000
10,000
1000
1,000,000
77
What contains the instructions needed for a computer to boot up?
ROM
RAM
78
To recap: software is...
the programs or applications that a computer system runs.
the less solid components of a computer, e.g. foam filler.
79
ROM is..?
non-volatile memory
volatile memory
80
ROM comes on a small, factory-made chip in the...
control unit
SSD
hard disk drive
motherboard
81
Explain one reason why the cache size affects the performance of the CPU.
Data is transferred faster which makes a CPU more efficient.
It is faster to transfer to and from cache than RAM.
82
Topology?
spider web???
now this is a star - everything is just connected to the hub
83
A machine that processes data is...
the ALU
a computer
an embedded system
the motherboard
84
More RAM can mean...
an increased use of virtual memory.
a faster or smoother system.
85
MDR...
stores the address of the next instruction to be run.
stores the data that has just been fetched.
stores the address where the next data will be fetched from.
is incremented each time an instruction is run.
86
External pieces of hardware, like the keyboard and mouse, are called...
peripherals.
USBs.
exterior components.
add-ons.
87
Which of these is not an embedded system?
Dishwasher
Video game console
Sat nav
Manufacturing equipment
88
Pick the one that doesn’t answer this question: Describe what is meant by 3MHz CPU.
Indicates how many instructions may be processed each second
3MHz is how fast the processor is.
3MHz is the clock speed.
Indicates how many clock cycles the processor can do at once
89
Benefit of cloud storage.
Need internet connection to access.
Data is vulnerable to hacking.
Quick to access individual files.
Cloud storage system would likely charge subscription fee.
90
A computer is more likely to run faster if...
it has more cores.
it has less cores.
91
Which one does not describe an effect of a faster processor?
Less cache needed
More tasks completed / second so software may respond faster
Performing tasks in a shorter time
Allows more instructions to be run per second
92
GPU stands for...
Graphical Processing Unit
Graphics Processing Unit
Graphical Programming Unit
Graphics Programming Unit
93
GPUs help CPUs process...
images
data
sounds
94
Which one is the odd one out?
primary storage
volatile memory
RAM
ROM
95
nic
carries data between devices on network
allows individual devices to connect to network
directs data on network
96
Volatile memory...
keeps its contents even when it has no power.
requires power to retain its data.
97
Virtual memory is...
secondary storage
primary storage
98
role of pc in client-server network
sends requests to server
processes requests
shows results from server
centrally stores files
99
Non-volatile memory...
keeps its contents even when it has no power.
requires power to retain its data.
100
true or false: the internet is a network between many networks
false
true
101
Describe the purpose of cache memory.
🤷♀️
Smaller in size so technology can be smaller.
Costs less per byte.
Technology can be more mobile
102
The physical stuff that makes up the computer system:
hardware
wires
metal
software
103
RAM is...
primary storage
secondary storage
104
Which one does not describe the impact of increasing RAM?
Avoid use of virtual memory.
Allows more programs to be open at once without slowing comp
Higher speed therefore greater clock speed
Can temporarily store more data in faster memory.
105
What is directly accessed by the CPU?
primary storage
secondary storage
106
client server...
stores one file centrally
creates copies of files between devices
107
Which one of these is not a computer system?
Calculator
Etch-a-Sketch
Supercomputer
Watch
108
Which one is the odd one out?
SSD
magnetic hard disk drive
virtual memory
ROM
109
Virtual memory is used as extra...
RAM
ROM
110
State the purpose of the CPU.
To carry out the processing on the computer.
To control the computer.
To fetch and execute instructions.
111
How many bytes in 1KB?
1.024
0.1
1000
1024
112
role of server in client-server network
centrally stores files / software
processes requests
shows results from clients
sends requests to clients
