computing checklist
DESCRIPTION
Computing checklist for int 2 computingTRANSCRIPT
Computer SystemsRevision Checklist
Name: Topic Section Definition/Example
HARDWARE
Input Input is a device that inputs information into a computer e.g. mouse, keyboard
Output Output is something that puts information out of your computer e.g. speakers, monitor
Backing Storage This is an external device that can store information
Sequential / Random Access
Sequential information is information that you have to go through in a sequence to get to the part you want
Random Access memory can access any part of any information stored
Virtual Reality Hardware and/or software that induces reality
Specialised Devices
Input and output devices for disabled users
Computer Types e.g. Laptops, desktop computers, palmtops
SOFTWAREProgram Files An executable file that starts an
application or programData Files This is a file that is created by a
programApplication Software
Software that helps you do tasks on your OS
Functions of an Operating System
e.g. file management, memory management, control of input and output devices
Hierarchical Filing System
It allows the user to create folders and sub-folders, at the very start of the structure it is called the root
Device Drivers This is a software that allows a piece of input, output or backing storage to function and communicate with the computer
PROCESSOR ALU Carries out calculations and makes decisions
CPU The CPU is made up of ALU, CU and registers
CU Fetched and executes instructionsRegisters Temporary storage areas for data
and instructions being processedAddressability Word Length ASCII This is a world wide format of text
allowing computers to communicate easily
Graphics RepresentationBinary Numbers This is basically Bit, byte, KB, MB, GB, TB
This is the name of different sizes of files
RAM Random access memory, in contrary to sequential memory you can access anything without having to go through the rest of the data
ROM This is irremovable or editable data stored on the computer that tells the computer how to boot