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GCSE OCR Computing A451 Revision 2 Flashcards | StudBud
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GCSE OCR Computing A451 Revision 2
GCSE OCR Computing A451 Revision 2
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GCSE Computing OCR A451 Revision
Flashcards
20 cards
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Questions
20
Answers
1
Instructions in binary used by the CPU are called?
Machine Code
Low Level Language
High Level Language
Binary
2
What is 10010001 in Hex?
1B
A1
91
81
3
What is the denary of 10001001
78
137
99
139
4
Assembly language uses?
Mnemonics
Assembly
Binary
Machine
5
Software permanently stored within a device is known as?
Driver
Firmware
Utility
Server
6
Which of the following is not a security utility?
Virus Checker
Spyware
Defragmenter
Firewall
7
A defragmenter brings together what?
Cake
Words
File fragments
Fragmented HDD
8
Which of these is not a feature of an OS?
Interfaces
Hardware
Utilities
9
Open source software is developed by ?
Clients
Microsoft
A team of developers
Online Communities
10
1024 Megabytes makes?
10MB
1GB
100MB
1000GB
11
Instructions are loaded into ?
ALU
ROM
RAM
HDD
12
Software is?
Programmed pieces of software
Components of a computer system
The programs that run on a computer
programming languages
13
An interrupt is used to?
down with this sort of thing
stop the world from ending
stop running the current program
control device drivers
14
The smallest element of an image is a?
Pixel
Block
Bit
Square
15
1 byte contains how many bits?
8
32
4
16
16
Which is not a type of interface?
User
Voice
Command Line
GUI
17
The number of times a sound is recorded in a second is called the?
Quality Rate
MHZ
Sample Rate
Recording Level
18
The kernel looks after...?
Operating systems applications
Low level hardware operations
Basic memory operations
Software
19
How many characters can we store in ASCII?
64
128
127
255
20
width and height are parts of the what in an image file?
Information
Dimensions
Metadata
Properties
