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GCSE OCR Computing A451 Revision 4 Data Representation Flashcards | StudBud
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GCSE OCR Computing A451 Revision 4 Data Representation
GCSE OCR Computing A451 Revision 4 Data Representation
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GCSE OCR Computing Revision A451
Flashcards
20 cards
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Questions
20
Answers
1
What is this in denary?
87
175
177
159
2
The program counter stores the address of the next....
Instruction
Program
Data
Address
3
Machine code used by the CPU uses?
Assembly
Firmware
Binary
Denary
4
Colour depth is the number of what used for each pixel?
Bits
Dots
Colours
Resolution
5
A signal used to stop what is currently happening and start another task is called a ...
Halt
Stop Request
Client
Interrupt
6
246 in binary is?
11111100
11110110
11001111
01111111
7
What is this binary number in Hex?
A7
A6
B7
B6
8
The smallest element of a picture is a?
Pixel
Colour
Byte
Block
9
Which of the following is NOT an interface
Voice
GUI
Command Line
Icon
10
A location in main memory used to store data or instructions is an....
Operator
Accumulator
Address
Register
11
What is this in denary?
69
67
71
56
12
Sample rate is measured in...
THz
GHz
MHz
Hz
13
Which of these is NOT a software utility?
Firewall
Defragmenter
Disk Cleanup
Spyware
14
Assembly language uses mnemonics
False
True
15
The two parts of an instruction are the Operator and the...
Operand
Address
Opcode
CPU
16
The OS kernel connects applications to what?
Software
Hardware
Binary
Processes
17
How many characters can ASCII represent?
127
128
65
64
18
How would a low sample rate affect the quality of a recording?
Worse quality
Better quality
Improve Bass
Analogue
19
How many bytes are in a kilobyte?
1024
10024
10000
1000
20
What is the total of this binary addition?
00011100
00101110
00001110
00011011
