ICT

Portable devices

There are many different portable devices such as:

  • Laptops - carrie out the same functions as a computer but is designed to be light and potable so can be carried around.

  • Notebooks - similar to a laptop but even more compact.

  • Netbooks - similar to the notebook but designed to be used for wireless communication. Usually cheaper and a lower specification.

  • Personal Digital Assistant (PDA) - small enough to be held in the palm of your hand, usually contains an address book, note making features, and internet features.

Peripherals

Definition - A computer peripheral is any external device that provides input and output for the computer. For example, a keyboard and mouse are input peripherals, while a monitor and printer are output peripherals. Computer peripherals, or peripheral devices, are sometimes called "I/O devices" because they provide input and output for the computer. Some peripherals, such as external hard drives, provide both input and output for the computer.

Inputs

Definition - Whatever goes into the computer Input can take a variety of forms, from commands you enter from the keyboard to data from another computer or device. A device that feeds data into a computer, such as a keyboard or mouse, is called an input device.

· Touch screen

· Games controller/ joystick

· Mouse

· Keyboard

· USB

Outputs

Definition - Anything that comes out of a computer. Output can be meaningful information or gibberish, and it can appear in a variety of forms -- as binary numbers, as characters, as pictures, and as printed pages. Output devices include display screens, loudspeakers, and printers.

· Flash drive

· Printer

· Speakers

· Monitor

· Games controller

Storage Devices

There are diferent storage devices such as:

  • Optical
  • Magnetic
  • Solid state

Optical Devices

Definition - Optical storage is any storage method in which data is written and read with a laser for archival or backup purposes.

· CD's

· DVD's

· Blu-ray

Magnetic Devices

Definition- A system of storing information through the alignment of small grains in a magnetic material. Once the grains have been aligned by an external magnetic field, the information remains stored for long periods of time. This is the technique used in the hard drives of computers as well as in magnetic tape.

· Credit card

· SSD

· Floppy disk

· Hard drive

Solid State Devices

Definition - Solid-state storage (SSS) is a type of storage technique that employs storage devices built using silicon microchip based storage architecture.

Solid-state storage is designed on the architecture and storage mechanism of volatile and non–volatile flash memory and stores data electronically by passing electrical charge across the memory chips.

  • Memory stick