IGSCE- Year 10- Unit 1: Types of Computers

 

 💗💓IGSCE- Year 10- Unit 1: Types of computers💓💗

         Designed By: Jassmin Elsayed          Class: 10M2

(1) Smartphones

         -Smartphones can use traditional methods to make phone calls and send messages using mobile network.

         -Smart phones have operating systems which allows them to run multiple applications.   

         -Like tablet computers, Smart phones have many features including:

• Touch technology.
  
• Sensors.
• Cameras.
• Internet connection  (Wireless/3G/4G).                                                                                                                                                                                                                                                                                                                                                                                                                          Disadvantages:                                                                   Advantages: 
• Small in size and easier to carry around.              Battery life is short.
• Touch screen technology.                                       Small screen makes it difficult to read.
• Can be moved whilst on the move using              Slow data transfer rates.

                    wireless or 3G/4G connectivity.                               Limited storage/memory compared to other computer types.

(2) Tablet computer                                                                                                                           

    - Tablets are very similar to smartphones.

         - They have an internet connection via a wireless connection including 3G/4G.

         - Tablets make use of touch screen technology to select options on a menu or to select particular icons.

         - Applications can be downloaded and installed.

         - Sensors including speech recognition.  

                  Advantages:                                                                     Disadvantages:                                                    

•  High definition anti glare display.                                                       -Limited memory compared to laptops.
• Wireless, 3G/4G and Bluetooth connection.                                       -Expensive to use 3G/4G internet.
• Data can be backed up or synchronised with other devices.         - Typing can be more difficult compared to normal                                                                                                           keyboard.
• Touch screen technology.                                                                      - Not all files are compatible with tablets.
• Battery life longer than a smartphone.
• Portable.

(3) Laptop computer                                                                                                               

            -Laptops refer to a computer where all components (monitor,keyboard etc.) are together on a single device.                                                                                                                            

   -Laptops are able to be folded flat for transportation and have a built-in keyboard and touchpad with built-in monitor and rechargeable battery.                                                                                  

Advantages:

• It's portable due to small size and weight.
• Battery can be recharged.
• Can connect wireless to internet.
• No loose cables, all components connected together.

 Disadvantages:

• Limited battery life.
• Laptops are difficult to repair and upgrade.
• Can be stolen or lost.
• Some users find it difficult to use pointing device.

 

(4) Personal computer (Desktop)

                - Desktop computers normally have seperate monitor,keyboard,mouse,speakers,etc.

                - They are designed to be used by one person at a time.

                - Can perform tasks such as gaming, school work, household accounts, internet access and emailing.

Advantages:

• Always connected to the mains.
• Monitors can come in any sizes.
• Can be upgraded and parts easily replaced.
• Tend to have a higher specification than laptop computers.

Disadvantages:

• Not portable.
• Takes up more desk space.
• Separate components like keyboard,mouse,monitor,speakers,etc.
• Loose cables which could be trip hazards.

 

(5) Super computers 

-A computer with high level of performance compared to a general-purpose computer.

-Supercomputers contain tens of thousands of  processors and can perform billions and trillions of calculations or computations per second.

                                                                               Advantages:

• Used for huge operations that require high speed and complicated calculations.
• Testing mathematical models, complex physical phenomena or designs, such as climate and weather, evolution of the astronomy, nuclear weapons and reactors, new chemical compounds (especially for pharmaceutical purposes).
• Can test big experiments.

Disadvantages:

• Big size.
• Too expensive.
• Can't be used for personal use.

(6) Personal Digital Assistance (PDA)

- A term for a small mobile,handheld device 

-    It provides computing and information storage and retrieval capabilities for personal or business use, often for keeping schedules,calendars, and address book information handy.

Advantages:

• Small portable size
• Used to perform specific light jobs: run multimedia software,keeping schedules,global positioning system.
• Help monitor day arrangements.

Disadvantages:

• Not widely used, smartphones/apps could replace it's job.
• Small/easy to lose.
• Can only help with small tasks

(7) Wearable computers

- Electronic devices that can be attached on the human body such as the smartwatch and smart glasses. 

- It can track heart beat, physical movement and much more. 

Advantages:

• Can be helpful on the daily basis.
• Allows easier communication.
• Portable, not too heavy.
• They provide biometric data, such as pulse rate, temperature, muscle stretch, heart rhythm and physical movement.
• Monitor fitness levels.

Disadvantages:

• Really expensive
• Easy to break/lose
• Difficult to type in smartwatches because of small screen.