y8 EOY revision

Pregunta	Respuesta
what is psuedocode	a simplified version of code which is the root of all programing language.
what is a algorythem	step by step instructions for a computer to folow
flowchart: start/stop	flowchart: oval
flowchart: process	flowchart: rectangle
flowcharts: input/output	flowcharts: paralelogram
flowcharts: pre-defined process	flowcharts: rectangle with lines at the edges
flowcharts: decision box	flowcharts: diamond
flowcharts: connectors	flowcharts: arrows
logic gates: and	half circle half square both elements have to be true to go to z Image: And Gate (binary/octet-stream)
logic gates: or	curvy kite one of the elements need to be true to go to y Image: Or Gate (binary/octet-stream)
logic gates: not	triangle with dot statement need to be false to go on Image: Not Gate (binary/octet-stream)
integer	a number
double	a decimal number
string	multiple characters
boolean	true false, yes no, 0 1
char	one single character
variable	a thing which holds a value and that value can be changed through the program, in VB to iniiate a variable you do Dim (var name) As (datatype)
concatenation	the act of joining two things together, in VB we use "+" for non-number values or else it will just add the numbers so for numbers you use "&" (you can use this for strings aswell)
Binary	A piece of code that only involves zeros and ones, this is known as Base 2
denary	This piece of code only involves 10 digits. The system contains number from 0 to 9, not 10 as the computer counts the zero as part of the 10 numbers also known as Base 10
Hexidecimal	A piece of code that uses 0 to 9 but as well as that uses A to F so 16 numbers
computer systems	A system of interconnected computers that share a central storage system and various electronic devices such as a printers, scanners, or Wi-Fi.
data processing	using input devices data processing – using a microprocessor, typically the Central Processing Unit (CPU)
record	a horizontal line of info. contains info about one particular thing
primary key	a number which represents a record
field	the verticle information. conatins answers to one single question e.g. all of the name or all of the ages
entities	things in a database which we want to know about e.g. in a register (yes that's a database) the entity would be pupils
queiry	A query is a request for data or information from a database table or combination of tables
forms	a simple user interface that fill data into a database
CPU	The CPU is responsible for executing a sequence of stored instructions called a program.
GPU	Graphics Processing Unit: These features are designed to lessen the work of the CPU and produce faster video and graphics.
RAM	RAM is a fast temporary type of memory in which programs, applications and data are stored. where the operating system, applications the graphical user interface (GUI) are stored. If a computer loses power, all data stored in its RAM is lost.
Disk Drive	A place where you put in a disk and the computer reads the disk
two types of storage	SSD (solid state drive) HDD (hard disk drive)

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	Creado por Oleg Paska hace más de 6 años