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