1.
What is this?
Correct Answer
A. Hard drive
Explanation
The image shows a person handling a device that resembles a hard drive. The hard drive is a data storage device commonly found in computers, consisting of spinning disks where data is stored magnetically. The blue gloves and the exposed internal components, including the circular disk, are characteristic of a hard drive, typically seen when it is being repaired or examined. This is not a mouse, CPU, or anything else.
2.
What is this?
Correct Answer
C. External modem
Explanation
An external modem is a device that connects a computer to the internet or a network using a telephone line or cable. It is called "external" because it is a separate device that is connected to the computer through a cable, rather than being built into the computer like an internal modem. This allows for easier installation and the ability to easily switch the modem between different computers.
3.
What is this?
Correct Answer
D. Flash drive
Explanation
A flash drive is a portable storage device that can be used to store and transfer data. It is a small, lightweight device that connects to a computer via a USB port. Flash drives are commonly used to backup and transfer files, as they offer a convenient and portable solution for data storage. They are often referred to as USB drives or thumb drives.
4.
What is this?
Correct Answer
A. Floppy drive
Explanation
The given question is asking to identify the object depicted in the image. Based on the options provided, the correct answer is "floppy drive". A floppy drive is a storage device that reads and writes data on floppy disks. It was commonly used in the past for data storage and transfer.
5.
What is this?
Correct Answer
B. Hard drive
Explanation
The picture is of a hard drive. Hard drives are commonly used for storing the operating system, software applications, and user data, including documents, pictures, videos, and more. They provide persistent storage, meaning the data is retained even when the computer is powered off.
6.
What is this?
Correct Answer
C. Audio plug
Explanation
The given options are ethernet cable, USB plug, audio plug, and printer. Out of these options, the correct answer is the audio plug. An audio plug is a connector used to transmit audio signals from devices such as headphones, speakers, or microphones. It is commonly used to connect audio devices to audio inputs or outputs on electronic devices like computers, smartphones, or audio systems.
7.
What is this?
Correct Answer
D. Keyboard
Explanation
The correct answer is "keyboard." A keyboard is an input device for computers and other electronic devices that allows users to input data and commands by pressing keys with their fingers. It typically consists of a set of keys, each representing a specific character, letter, number, or function. Keyboards come in various layouts, with the most common being the QWERTY layout.
8.
What is this?
Correct Answer
A. Random Access Memory
Explanation
The correct answer is "Random Access Memory" because the question is asking about what "this" refers to, and out of the given options, Random Access Memory is the most likely answer. The other options, such as mouse and external hard drive, are not typically referred to as "this."
9.
What is this?
Correct Answer
A. MicropHone
Explanation
Among the options provided, the correct answer is "microphone." A microphone is a transducer device that converts sound waves into electrical signals. It is an input device used to capture audio or sound and transform it into an electrical signal that can be processed, transmitted, or recorded by electronic devices such as computers, audio recording equipment, or communication devices.
10.
What is the pink jack for?
Correct Answer
A. MicropHone
Explanation
The pink jack is used for connecting a microphone. This jack is specifically designed to transmit audio signals from a microphone to a device such as a computer, audio interface, or amplifier. By plugging a microphone into the pink jack, the user can capture and record their voice or other audio input.
11.
What is the blue jack for?
Correct Answer
D. Audio in
Explanation
This blue jack is used for audio in. This means that it is used to input audio signals into a device, such as a computer or audio recording equipment. It allows for the connection of external devices, such as microphones or musical instruments, to the device for recording or processing audio.
12.
What is this?
Correct Answer
A. Internal modem
Explanation
An internal modem refers to a device that is installed inside a computer system and is used for connecting to the internet or other remote networks. It is typically connected to the motherboard of the computer and is not visible externally. In contrast, a flash drive is a portable storage device, an external modem is a device that connects to a computer externally to provide internet connectivity, and "none of these" implies that none of the given options are correct.
13.
What is this?
Correct Answer
B. Monitor
Explanation
Among the options provided, the correct answer is "monitor." A monitor is a display device that visually presents information generated by a computer or other electronic device. It is an output device that allows users to view the content, graphics, and videos produced by the computer's graphics card or other connected devices.
14.
What is this?
Correct Answer
D. Motherboard
Explanation
The question is asking to identify what "this" refers to. The correct answer is "motherboard" because a motherboard is a main circuit board that connects all the components of a computer system, such as the CPU, memory, and peripherals. It is an essential component that allows communication between different hardware components and facilitates their functioning as a cohesive unit.
15.
What is this?
Correct Answer
C. Mouse
Explanation
The correct answer is "mouse." A mouse is a pointing device that is used to interact with a graphical user interface (GUI) on a computer. It typically consists of a small hand-held device that is moved across a flat surface, and it may have one or more buttons for user input.
16.
What is this?
Correct Answer
B. Optical drive
Explanation
The question is asking to identify an item based on the given options. The correct answer is "optical drive." An optical drive is a device used to read or write data from optical discs such as CDs, DVDs, or Blu-ray discs. It is separate from the motherboard and mouse, which are components of a computer system. Therefore, the correct option is "optical drive."
17.
What is this?
Correct Answer
C. Portable external hard drive
Explanation
A portable external hard drive is a device that can be connected to a computer or other electronic devices to provide additional storage space. It is portable, meaning it can be easily carried around and used with different devices. Unlike an internal hard drive, which is installed inside a computer, or a flash drive, which is smaller and has limited storage capacity, a portable external hard drive offers larger storage capacity and can be easily connected or disconnected from different devices.
18.
What is this?
Correct Answer
D. Power supply
Explanation
The device shown in the image is a computer power supply unit (PSU). The power supply is responsible for converting electrical power from an outlet into a usable form for the components of a computer, like the motherboard, hard drive, and other peripherals. It usually includes a fan, power connectors, and a power switch, as shown in the image. The other options, such as a hard drive, memory, or mouse, look entirely different and serve other specific functions in a computer system.
19.
What is the yellow plug for in an RCA plug?
Correct Answer
B. Video
Explanation
The yellow plug in an RCA plug is used for video. RCA plugs are commonly used to transmit audio and video signals. The yellow plug specifically carries the video signal, while the red and white plugs typically carry the left and right audio channels respectively. Therefore, the correct answer is video.
20.
What are the red and white plugs for on an RCA cord?
Correct Answer
A. Audio
Explanation
The red and white plugs on an RCA cord are used for audio. These plugs are typically connected to the corresponding red and white audio input or output jacks on electronic devices such as TVs, DVD players, or audio receivers. The red plug carries the right audio channel, while the white plug carries the left audio channel. By connecting these plugs, you can transmit audio signals between devices and enjoy sound output or input.
21.
What is this?
Correct Answer
C. Wireless router
Explanation
A wireless router is a device that functions as both a router and a wireless access point. It is used to provide access to the Internet or a private computer network. In its role as a router, it directs data traffic by forwarding data packets to their intended IP addresses within the network. As a wireless access point, it allows devices to connect to the network without physical cables, using radio waves for communication.
22.
What is this?
Correct Answer
C. Speakers
Explanation
Among these options, speakers are the correct answer as they are a common audio output device used to amplify sound and produce sound waves. A microphone is an input device used to record sound, a monitor is a display device, and "none of these" is not applicable as one of the options accurately identifies the object.
23.
What is this?
Correct Answer
D. Sound card
Explanation
A sound card is a hardware component that allows a computer to output and input audio signals. It is responsible for producing sound from the computer's speakers or headphones, as well as enabling the computer to record audio through a microphone or other input devices. This is the correct answer because it is the only option that specifically refers to a component related to audio functionality in a computer system.
24.
What is this?
Correct Answer
B. USB cable
Explanation
The given question asks for the identification of an item. The correct answer is "USB cable." This is because the other options, RCA cable and external hard drive, are different types of devices and not cables. Additionally, the last option, "none of these," does not provide any specific identification. Therefore, the USB cable is the most appropriate answer based on the given options.
25.
What is this?
Correct Answer
C. Video card
Explanation
The question is asking for the identification of the given item. The correct answer is "video card" as it is a component of a computer that is responsible for generating and outputting images to a display. This is different from an external hard drive and memory, which are storage devices, and "none of these" is not the correct answer as the given item is indeed a video card.