Denary- The normal numbering system that uses base 10.
Integer- a whole number that can be positive or negative. Including 0.
Real Number- Any positive or negative number without a fractional part.
Ordinal number- any numbers which follow an order e.g 1-2-3-4.
Byte- 8 bits
Nibble- 4 bits
Bits- the smallest representative value for a computer to process. Can be a 1 or 0.
Metadata- data accompanies the image and has information on it.
Data types;
JPEG
PNG
GIF
Compression- the way of reducing the number the number of bits to represent data.
Lossless Compression- A way of compressing the data without losing any quality or accuracy.
Parity system- A way of checking if data is accurate and that it is complete and has not been tampered with.
Pixel- The smallest
Bit mapped graphics- Used pixels to display an image
Vector graphics- uses shapes and mathematical formula to construct an image
Trace table- A table that how numbers change when a program or code is followed.
Floating point number- A number r
2's Complement- a way of representing a negative number in a binary.
Mantissa- This is the main number. standard form has the decimal between a 0 and a 1.
Exponent- Tells us how far the decimal point is moved left or right.
RLE- Run length encoding,
A form of lossless compression in which a sequence is shortened. b,b,b,b=4b
Precision- how accurate something is.
Hexadecimal Representation- a way of representing numbers using 0-9 than letters for the numbers 10+. E.g 11=b
Bubble sort- a way of sorting numbers by comparing and swapping. each pass brings the largest number to the top each time until they are in order.
Hardware- The real physical/electrical components of the computer.
Software- Software is the
Application software-
Utility program- These help the computer by keeping the computer in an efficient state. They are in charge of the 'house keeping' such as deleting old files.
Library programs-
Translators-
Compiler-
Assembler-
Interpreter-
Operation system- This manages the system hardware and creates the 'virtual machine' for the user.
Virtual machine-
Resource management-
Processor-
Scheduling-
Memory management-
File management-
Peripheral-
Data types;
JPEG
PNG
GIF
Compression- the way of reducing the number the number of bits to represent data.
Lossless Compression- A way of compressing the data without losing any quality or accuracy.
Parity system- A way of checking if data is accurate and that it is complete and has not been tampered with.
Pixel- The smallest
Bit mapped graphics- Used pixels to display an image
Vector graphics- uses shapes and mathematical formula to construct an image
Trace table- A table that how numbers change when a program or code is followed.
Floating point number- A number r
2's Complement- a way of representing a negative number in a binary.
Mantissa- This is the main number. standard form has the decimal between a 0 and a 1.
Exponent- Tells us how far the decimal point is moved left or right.
RLE- Run length encoding,
A form of lossless compression in which a sequence is shortened. b,b,b,b=4b
Precision- how accurate something is.
Hexadecimal Representation- a way of representing numbers using 0-9 than letters for the numbers 10+. E.g 11=b
Bubble sort- a way of sorting numbers by comparing and swapping. each pass brings the largest number to the top each time until they are in order.
Hardware- The real physical/electrical components of the computer.
Software- Software is the
Application software-
Utility program- These help the computer by keeping the computer in an efficient state. They are in charge of the 'house keeping' such as deleting old files.
Library programs-
Translators-
Compiler-
Assembler-
Interpreter-
Operation system- This manages the system hardware and creates the 'virtual machine' for the user.
Virtual machine-
Resource management-
Processor-
Scheduling-
Memory management-
File management-
Peripheral-
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