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