Computer Hardware and Software Questions

Computer Hardware

• VDU (Visual Display Unit) is not an input device.
• A light-sensitive device that converts printed text or images into digital form is called a scanner.
• A dirty mouse ball can cause the mouse pointer to move erratically.
• A specialized program that allows users to utilize a specific application is classified as an Application program.

Input/Output Devices

• A plotter is not a light-sensitive device that converts printed text or images into digital form.

Motherboard

• Information travels between components to the Motherboard through busses.

Printers

• The resolution of Laser Printers are specified in terms of DPI (Dots Per Inch).

Assembly Language

• A mnemonic is a short abbreviation for the operation to be performed in instruction words.

Data Bus

• The data bus is bidirectional.

Macro Processor

• The macro preprocessor is the translator that performs macro expansion tasks.

Secondary Memory

• The hard disk is the secondary memory of the Data processing system.

Computer Terminology

• DASD stands for Data Assembling Storage Disk.
• Silico Sapiens refers to computers.
• A program in execution is called a process.

Telecommunications

• A modem is a device used to transmit data over telecommunications lines.

CPU

• The computer uses the ALU (Arithmetic Logic Unit) for comparison and calculations.

Memory

• RAM (Random Access Memory) is used in typical computer operations.

Processor

• The basic goal of computer processors is to convert given data into information.

Peripheral Devices

• HDD (Hard Disk Drive) is a peripheral hardware device in a computer system.

Computer Instructions

• Computers process data under the control of sets of instructions called computer programs.

Microcomputer

• A microprocessor unit, a memory unit, and an input/output unit form a microcomputer.

Firmware

• Firmware is the software used to drive microprocessor-based systems.

Data Bus Width

• The data bus typically uses 8-bit or 16-bit widths.