Test De Verificare A Cunostintelor - Clasa A Ix-a

One megabyte (Mo) is equal to 1024 kilobytes (ko). This is because in digital systems, data is often represented in binary form, and 1024 is the closest power of 2 to 1000. Therefore, when converting between megabytes and kilobytes, we use the factor of 1024.

The correct answer is "inch" because the unit of measurement for the diagonal of a monitor is commonly expressed in inches.

A byte is a unit of digital information that consists of 8 bits. Each bit can have a value of either 0 or 1, and when combined, they form a byte. Therefore, the correct answer is 8.

The correct answer is Gb. Gb stands for gigabyte, which is a unit of measurement for digital storage capacity. HDD, or hard disk drive, is a type of computer storage device that uses magnetic storage to store and retrieve digital information. The capacity of an HDD is typically measured in gigabytes (Gb), which indicates the amount of data that can be stored on the drive. Therefore, Gb is the appropriate unit of measurement for HDDs.

CD-ROM is a type of compact disc that can only read information, while CD-R/RW can read, write, and rewrite information. Therefore, the correct answer is that CD-ROM only reads information, while CD-R/RW can read, write, and rewrite information.

The content of ROM (Read-Only Memory) cannot be erased or modified. ROM is a type of non-volatile memory that is programmed during manufacturing and retains its data even when the power is turned off. Therefore, the statement "Poate fi șters conținutul memoriei ROM?" (Can the content of ROM be erased?) is false.

The answer is "DA" because the information stored in RAM (Random Access Memory) is volatile, meaning it requires a constant supply of power to retain data. When the computer is shut down or loses power, the data stored in RAM is lost. This is why it is important to save any important files or data to a non-volatile storage device, such as a hard drive, before shutting down the computer.

The correct answer is "controla activitatea altor echipamente si de a prelucra informatiile." A microprocessor is responsible for controlling the activity of other equipment and processing information. It acts as the central processing unit (CPU) of a computer system, executing instructions and performing calculations. Additionally, it communicates with other hardware components, such as memory and input/output devices, to coordinate and control their operations.

The given answer arranges the units of memory capacity in ascending order. Starting with the smallest unit "o" (which represents octet), it is followed by "Ko" (kilooctet), "Mo" (megaoctet), "Go" (gigaoctet), "To" (teraoctet), and finally "Eo" (exaoctet), which is the largest unit.

Perifericele care măsoară viteza de lucru în caractere pe secundă (cps) sunt dispozitivele de intrare/ieșire care permit introducerea și afișarea de caractere. Procesorul este componenta centrală a unui sistem de calcul și nu măsoară viteza de lucru în cps. Tastatura și discul dur sunt dispozitive de intrare/ieșire care permit introducerea și stocarea de date, dar nu măsoară viteza de lucru în cps. În schimb, imprimanta este un dispozitiv de ieșire care tipărește caractere pe hârtie și, prin urmare, măsoară viteza de lucru în cps.

SVGA (Super Video Graphics Array) is the correct answer because it offers a higher resolution and color palette compared to the other options listed. XGA (Extended Graphics Array) has a lower resolution than SVGA, VGA (Video Graphics Array) has an even lower resolution than XGA, and CRT (Cathode Ray Tube) refers to a type of monitor technology rather than a specific resolution or color palette. Therefore, SVGA is the technology that provides the highest resolution and color options among the given choices.

The correct answer is "bitul." A bit is the fundamental unit of information in computing and digital communications. It represents a binary digit, which can have two possible values: 0 or 1. Information is stored and transmitted in the form of bits, and they are used to measure the amount of data or information in a system. Therefore, the bit is considered the elementary unit of measurement for information.

The correct answer is microprocesorul, memoria internă. On the motherboard, the microprocessor and internal memory are connected. The microprocessor is the central processing unit of the computer, responsible for executing instructions and performing calculations. The internal memory refers to the storage space within the computer, where data and instructions are temporarily stored for quick access by the microprocessor. These components are essential for the functioning of the computer system.

Memoria ROM este utilizată doar pentru citire. Acest tip de memorie este non-volatilă, ceea ce înseamnă că datele stocate în ea nu se pierd atunci când alimentarea este întreruptă. Deoarece datele sunt scrise permanent în timpul fabricației, utilizatorii nu pot scrie sau modifica datele stocate în memoria ROM. Prin urmare, răspunsul corect este "citire".

The correct answer includes all the characteristics that define a monitor. The number of colors refers to the maximum number of different colors that the monitor can display, which affects the quality and realism of the images. The resolution refers to the number of pixels that the monitor can display, determining the level of detail and sharpness of the images. The level of radiation refers to the amount of electromagnetic radiation emitted by the monitor, which can have health implications. Lastly, the clarity of the image refers to how sharp and clear the displayed content appears on the monitor.