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