Bits, Bytes & Binary Code

Explanation
1,000 BYTES = 1 KILOBYTE

Explanation
Binary code is a system of representing information using only two digits, 0 and 1. In this system, 0 represents the absence of something and 1 represents the presence of something. Therefore, the correct answer is 0 & 1, as these are the two numbers used in binary code.

Explanation
Gigahertz is faster than megahertz. Hertz is a unit of frequency, and both gigahertz and megahertz represent billions and millions of cycles per second respectively. Since gigahertz has a higher value, it means that it can complete more cycles in a second, making it faster than megahertz.

Explanation
The binary code 00000011 represents the number 3 because in binary, each digit can only be a 0 or a 1. The leftmost digit represents the value of 2^7, the next digit represents 2^6, and so on. In this case, the rightmost digit is a 1, representing 2^0, and the second rightmost digit is also a 1, representing 2^1. Adding these values together (2^0 + 2^1) gives us the decimal value of 3.

Explanation
A mouse is an example of an input device because it allows the user to input commands and interact with a computer or device by moving the cursor on the screen and clicking on various elements. It is used to navigate and control the computer, making it an essential tool for inputting information and commands. Unlike speakers, printer, and monitor which are output devices, the mouse is specifically designed for inputting data into the computer.

Explanation
Binary code is the fundamental language that computers use to process and store data. It is a universal language that all computers understand, regardless of their architecture or operating system. Therefore, binary code works on all computers, making the statement "Binary code does not work on all computers" false.

Explanation
Binary code is not a 10 base system. It is a base 2 system, meaning it only uses two digits, 0 and 1, to represent all numbers and characters. In contrast, a 10 base system, also known as decimal system, uses ten digits, 0 to 9, to represent numbers. Therefore, the statement that binary code is a 10 base system is false.

Explanation
The correct answer is "takes up an entire room" because mainframe computers are large and powerful machines that require a significant amount of space to accommodate their size and cooling requirements. They are typically housed in specialized rooms or data centers due to their physical dimensions and the need for proper ventilation and infrastructure. Therefore, they cannot fit on a desk or take up only part of a room.

Explanation
A PC (personal computer) can be used by only one user at a time. This is because a PC typically has one set of input devices (keyboard, mouse) and one display screen, which makes it designed for single-user operation. While multiple users can share a PC by taking turns, only one user can actively use it at any given time.

Explanation
The given correct answer for this question is "Macs". The question states that there are two types of computers, PCs and ________. Since PCs are already mentioned, the blank must be filled with the other type of computer. The term "Macs" refers to computers manufactured by Apple Inc., which are known for their sleek design and use of the macOS operating system.

Explanation
The "brain" of the computer refers to the central processing unit (CPU). The CPU is responsible for executing instructions and performing calculations in a computer. It acts as the control unit, coordinating the activities of all the other hardware components and processing data. The CPU is considered the most important component of a computer as it performs the majority of the computational tasks.

Explanation
The given system, 1001, consists of 4 bits. Each digit in a binary system represents a bit, and since there are 4 digits in this system, it means there are 4 bits.

Explanation
A bit is the smallest unit of computerized data. It represents a binary digit, which can be either a 0 or a 1. All data in a computer is stored and processed in the form of bits. A gigabyte, on the other hand, is a larger unit of data storage that is equal to 1 billion bytes. Therefore, the correct answer is bit.

Explanation
A monitor is not an input device, but rather an output device. It displays the output from a computer or other electronic device. Input devices, on the other hand, are used to input data or commands into a computer, such as a keyboard or mouse.

Explanation
The correct answer is .jpg because it is a file extension commonly used for image files.

Explanation
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