Unit 2 – Technology Systems Revision

Front

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?

Back

CPU

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.

Front

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

Back

CPU

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.

Front

I can have a number of cores. What am I? Options: CPU, RAM, Hard Drive, Monitor

Back

CPU

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.

Front

The component that manages all of the commands given to the computer by performing a constant command-decode-execute cycle is the ____. Options: CPU, RAM, Hard Drive, GPU

Back

CPU

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.

Front

Fill in the blank: ______ computers are used for scientific research and simulations. Options: Super, Personal, Tablet, Smartphone

Back

Super

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.

Front

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

Back

Storage

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.

Front

The 'Process' component of a computer system is responsible for ____.

Back

Executing instructions

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.

Front

The 'Storage' component of a computer system is used to ____.

Back

Store 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.

Front

Which component is responsible for executing instructions in the information processing cycle? Options: Input, Program, Storage, Output

Back

Program

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.

Front

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

Back

To automate tasks

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.