Question

Take a walk to the shopping mall area; • Identify 3 different computerized systems • For each system, identify the main output and input units • For each system, describe its “interactability” in terms of the display and input functions • For each system, explain how you think both the input and the output units can be improved to increase usability

Answer 1

ANALOGUE COMPUTERS

key functions :

-Precision resistors and capacitors.

-operational amplifiers.

-Multipliers.

-potentiometers.

-fixed-function generators.

Main out put and input units :

• Microphones.
• Photocells (light sensitive resistors)
• Temperature sensors.
• Force-sensitive resistors.
• Flex sensors.
• Thermistor (temperature sensitive resistor)
• Ultraviolet light sensor.
• Light sensors.

An analog computer or analogue computer is a type of computer that uses the continuously changeable aspects of physical phenomena such as electrical, mechanical, or hydraulic quantities to model the problem being solved. In contrast, digital computers represent varying quantities symbolically and by discrete values of both time and amplitude.

Digital Computer

Key Funtions :

• Input or inserting data and instructions.
• Processing.
• Output or retrieving data or information.
• Storing data or information/file management.
• Controlling of devices and functions.

Main output and Input Units :

• keyboard
• mouse
• CPU
• Monitor display
• RAM
• Hard drive

All computers are digital. If you wanted to record video on your hard drive from an analog camera, you'd have to connect a frame grabber in between the camera and a USB port on the computer Computers can solve complex mathematical problems, can be used to edit photos and video. All video games are produced on a computer. CGI is a term used by the movie industry to insert images into the movie that were not actually photographed. The list goes on.

Hybrid Computer.

-Hybrid computers are computers that exhibit features of analog computers and digital computers. The digital component normally serves as the controller and provides logical and numerical operations, while the analog component often serves as a solver of differential equations and other mathematically complex equations.

Hybrid computers are computers that exhibit features of analog computers and digital computers. The digital component normally serves as the controller and provides logical and numerical operations, while the analog component often serves as a solver of differential equations and other mathematically complex equations.