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Types And Componenets of a Computer System (Hardware & Software…
Types And Componenets of a Computer System
Impact of Emerging Technologies
new technologies
quantum cyrptography
making a message impossible to understand for unknown users.
Impact: safer data transfer security
robotics
robots are used mostly in manufacturing industries.
Impact: allows safer working environment, reduce manufacturing costs
3-D and holographic imaging
holography - technology that allows 3-D images to be produces.
involves the use of:
light intensity recording
interference of light
laser light
Impact: allow pre-view of designs, better entertainment experience, allow the use if simulations
vision enhancement
low - vision enhancement systems
use video technology to produce images inside the headset in front of people's eyes.
night vision enhancement
makes an image still be visible in darkness.
Impact: clearer image than original
virtual reality
artificial envoronment created by a software.
makes use of:
data goggles
sensor suits
data gloves / helmets
artificial intelligence (AI) biometrics
a tecghnology that uses people's unique features such as fingerprints, facial-recognition and pupil for security
Impact: More reliable security systems
computer - assisted translation (CAT)
language translator that uses the help of a software.
Impact: help learning of new language, easier communication with others
Hardware & Software
Software
Application Software
Word processor - used to manipulate text documents such as an essay or a report.
Spreadsheet - used as a organizer and manipulate numerical data
Database - used to organise manipulate and analyse data.
Control & measuring software - designed to allow a computer or microprocessor to interface with sensors.
Apps/Application - type of software that runs the mobile phone.
Photo Editing Software - allows the user to manipulate digital photographs stared on a computer.
Video editing software - allows the user to manipulate videos to produce a edited video.
Graphics manipulation software - allows bitmap and vector messages to be changed.
System Software
Compiler - a program written in high-level language ( HLL ) into machine code ( code that is understood by the computer ) so that it can be directly used by a computer to perform a required task.
Linkers - a computer program that takes one or more object tiles produced by a computer and combines them into a single program that can be run on a computer .
Device Driver - enables one or more hardware devices to communicate with the computer's operating system.
Operating System (OS) - essentially a software running in the background of a computer system.
Untilities - softer that has been designed to carry out specific tasks on a comperier.
Hardware
keyboard
Mouse
Monitor
Printer
Operating Systems
Definition: special software that enables computer systems to function and to allow users to communicate with computer systems
General Tasks
Dealing with computer errors
Maintaining security
Supervising application programs
Maintain a computer log that details the computer usage
Control the operation of the input, output, and backing storage devices
Allow communication between user and computer system (user Interface)
types
Graphical User Interface (GUI)
Disadvantages
1.It uses up considerably more computer memory than a CU interface.
The user is limited to the icons provided on the screen
A visual way of interacting with a computer using items such as windows, icons, and menus, used by most modern operating systems
Advantages
2.It is more user friendly: icons are used to represent applications.
1.The user doesn't need to learn any commands
Command Line Interface (CLI)
Users are required to type in commands to interact with the computer
Advantages
the user is in direct communication with the computer.
it is possible to alter computer configuration settings.
Disadvantages
The user is limited to the icons provided on the screen.
the user needs to learn a number of commands to carry out basic operations.
Computer Systems
Types
Tablets
internet-enabled portable computer that uses a touchscreen technology
Advantages fast to switch on,, fully portable, simple touch-screen technology, don't generate heat, longer battery life,
Disadvantages: limited memory/storage, support less type of file formats,
PC/ Desktop Computers
general purpose computer that is made up of separate parts
Advantages: cheaper, better specification for a given price, less power consumption, less likelyhood of damage, more stable internet connection
Disadvantages: not portable, clutters up desk space
Smartwatches
wearable mini computer that is designed to shape like a watch and offer the same function as a smartphone
Advantages:easy to use for monitoring fitness and health, more convenient
Disadvantages: can be uncomfortable to use, have unattractive design
Laptop
type of computer where the parts and the processor are all together in a single unit
Advantages: portable, no trailing wires, can take full advantage of Wi-Fi, can link to any multimedia system
Disadvantages: easier to steal, limited battery life, touchpads can be awkward to use
Mainframe
large, very powerful computer system, often housed in large frames
Main Features: Have several CPU's, very fast processor speed, can support multiple operating system, large storage capacity, huge internal memories,etc.
Main Components
Internal Hard Disk Drive
Computer's main internal storage, stores application software,disk operating systems and files
Random Access Memory (RAM)
Where data is temporarily stored when running an application, it's volatile
Central Processing Unit (CPU)
Interprets and executes commands from the hardware and software
Read-only Memory (ROM)
Store information that need to be permanant like the configuration data, it's non-volatile
Definition: physical components that make up a computer system.
Definition: programs that control the computer system
By: Nadya, Abigail, Lindsey, Richelle, Yoana
