Unit 2 – Technology Systems Revision

My speed is measured in hertz – gigahertz (GHz) or in older computers megahertz (MHz). The higher my hertz are in gigahertz, the faster my clock. What am I?

• CPU

• RAM

• Hard Drive

• Monitor

Answer explanation

The question refers to speed measured in hertz, specifically gigahertz (GHz) or megahertz (MHz), which are units for the clock speed of a CPU. Higher hertz indicate a faster CPU, making 'CPU' the correct answer.

I manage all of the commands given to the computer by performing a constant command-decode-execute cycle. What am I?

• CPU

• RAM

• Hard Drive

• GPU

Answer explanation

The CPU (Central Processing Unit) is responsible for executing commands through a cycle of fetching, decoding, and executing instructions. This makes it the correct answer, as RAM, Hard Drive, and GPU do not perform this cycle.

I can have a number of cores. What am I?

• CPU

• RAM

• Hard Drive

• Monitor

Answer explanation

The CPU (Central Processing Unit) is the component that can have multiple cores, allowing it to perform multiple tasks simultaneously. RAM, hard drives, and monitors do not have cores.

The component that manages all of the commands given to the computer by performing a constant command-decode-execute cycle is the ____.

• CPU

• RAM

• Hard Drive

• GPU

Answer explanation

The CPU (Central Processing Unit) is responsible for executing commands through a continuous cycle of fetching, decoding, and executing instructions, making it the correct answer.

Fill in the blank: ______ computers are used for scientific research and simulations.

• Super

• Personal

• Tablet

• Smartphone

Answer explanation

Super computers are specifically designed for complex scientific research and simulations, offering high processing power and speed. In contrast, personal computers, tablets, and smartphones are not equipped for such intensive tasks.

Fill in the blank: The four main components of a computer system are Input, Process, Output, and ____.

• A) Storage

• B) Decoration

• C) Program

• D) Network

Answer explanation

The four main components of a computer system are Input, Process, Output, and Storage. Storage is essential for saving data and programs, making it the correct choice to complete the list.

Fill in the blank: The 'Process' component of a computer system is responsible for ____.

• Storing data

• Executing instructions

• Receiving data

• Displaying data

Answer explanation

The 'Process' component of a computer system is primarily responsible for executing instructions. This involves carrying out the operations defined by the program, making it essential for the functioning of the system.

Fill in the blank: The 'Storage' component of a computer system is used to ____.

• Display data

• Store data

• Process data

• Input data

Answer explanation

The 'Storage' component of a computer system is specifically designed to store data. It retains information for future use, unlike the other options which pertain to different functions of a computer.

Which component is responsible for executing instructions in the information processing cycle?

• Input

• Program

• Storage

• Output

Answer explanation

The program is responsible for executing instructions in the information processing cycle. It contains the set of instructions that the computer follows to perform tasks, making it the correct choice.

What is one of the uses of computer systems in businesses?

• To reduce productivity

• To automate tasks

• To increase manual labor

• To decrease communication.

Answer explanation

One of the primary uses of computer systems in businesses is to automate tasks. This increases efficiency and allows employees to focus on more complex activities, rather than performing repetitive manual labor.