ICT systems

ICT systems

Learning Objectives

• We are learning about:– The specialist ICT equipment that can be

used– The use of microprocessor technology in

commercial applications– Mobile, portable and desktop ICT tools– The differences between the technologies

used and also the uses of these technologies

ICT systems

Using microprocessors in organizations 1

• Microprocessors are used to control devices

• They make decisions on how the device should operate

• They operate actuators or turn devices on/off as well as make adjustments

• They are also used in mobile devices such as mobile phones, PDAs, etc.

ICT systems

Using microprocessors in organizations 2

Used to control air conditioning systems

For controlling industrial processes

For access control

ICT systems

Operating Systems and applications software

• Computer hardware needs the specialised software to tell it what to do. This is the operating system or applications software.

• In PC’s this may be Windows 7 of Device Drivers.

ICT systems

Applications of technologies

ICT systems have to use a technology that is appropriate for their use. For example:

Portable Devices:•Less powerful chips•Light•Small Screen•Less Memory•Long Battery life•Trimmed down operating system

ICT systems

Magnetic ink character recognition (MICR)

• These are the strange-looking characters on bank cheques

• Characters are written in magnetic ink, which can be read automatically

• Used by banks to read cheques at high speed

• Very accurate and hard to forge

ICT systems

Optical mark recognition (OMR)

Optical mark recognition:• Works by shading in boxes on forms• Forms are batched together• Sent for reading by an optical mark

reader• Reports can be produced from the

system

ICT systems

Graphics tablet

• Used by designers• Can use the tablet

to draw freehand• Some tablets have

a series of shapes that can be chosen

• Can add units and appliances, etc., to a kitchen design

ICT systems

Specialist output devices

Specialist output devices include:• A3 printers• A0 plotters• 3D printers

ICT systems

A3 printers

• A3 paper is twice the size of A4 paper

• A3 printers are larger versions of the more familiar A4 printers

• Used for posters, plans, etc.• Used for printing spreads for pages

of books, magazines, etc.

ICT systems

A0 plotters

• A0 paper is very large

• A0 plotters can print in black and white and colour

• Used for printing maps and plans

• Ideal for CAD work• Used by architects

ICT systems

3D printers

• Can produce products in 3 dimensions

• Ideal for producing 3D prototypes of products

• Architects can quickly produce models of buildings based on their plans

ICT systems

Computers and portable devices

• Laptops• Netbooks• Notebooks• Palmtops• Desktop computers• Tablet Computers• PDAs and Handhelds

• WAP• Smart mobile

phones• Cloud computers

ICT systems

Software

• Specialised software– Computer-aided design (CAD)– Kitchen design software– Payroll software– Stock control software– Expert Systems– Control Software

ICT systems

Task 1

• Download the worksheet from the intranet and have a go at the questions.

• Extension: Complete the Test yourself task on page 195 of the text book.