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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 #gcse #computing #ocr #a451
Flashcards
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Questions
20
Answers
1
1024 Megabytes makes?
10MB
100MB
1000GB
1GB
2
What is 10010001 in Hex?
1B
81
A1
91
3
1 byte contains how many bits?
32
4
8
16
4
An interrupt is used to?
stop the world from ending
stop running the current program
down with this sort of thing
control device drivers
5
Instructions in binary used by the CPU are called?
Low Level Language
High Level Language
Machine Code
Binary
6
Assembly language uses?
Assembly
Machine
Binary
Mnemonics
7
The kernel looks after...?
Operating systems applications
Software
Basic memory operations
Low level hardware operations
8
The smallest element of an image is a?
Square
Block
Pixel
Bit
9
What is the denary of 10001001
139
78
137
99
10
A defragmenter brings together what?
File fragments
Words
Fragmented HDD
Cake
11
Which of the following is not a security utility?
Defragmenter
Firewall
Virus Checker
Spyware
12
Software permanently stored within a device is known as?
Firmware
Utility
Server
Driver
13
Open source software is developed by ?
Online Communities
A team of developers
Microsoft
Clients
14
Instructions are loaded into ?
ALU
RAM
ROM
HDD
15
Which is not a type of interface?
Voice
User
Command Line
GUI
16
Software is?
The programs that run on a computer
Programmed pieces of software
Components of a computer system
programming languages
17
The number of times a sound is recorded in a second is called the?
MHZ
Quality Rate
Recording Level
Sample Rate
18
Which of these is not a feature of an OS?
Interfaces
Hardware
Utilities
19
How many characters can we store in ASCII?
255
64
128
127
20
width and height are parts of the what in an image file?
Dimensions
Information
Metadata
Properties
