Question Discussion & Solution

The correct answer is cell.

Key Points

• The basic unit of an Excel spreadsheet where we enter data is known as a cell.
• Every worksheet is composed up of thousands of rectangles, which are called cells.
• A cell is the intersection of a row and a column.

Additional Information

• Columns are recognized by letters (A, B, C), while rows are identified by numbers (1, 2, 3).
• Each cell has its own name or cell address rooted on its column and row.
• The cell address will also embark in the Name box.

The correct answer is Shell.

Key Points

• Program
  • It is a collection of instructions that are executed by a computer to perform a specific task.
  • It is generally written by a computer programmer in a programming language.
• Shell
  • It is a program that interprets commands and acts as an intermediary between the user and the workings of the operating system.
  • It will give a prompt for the user to type in a command, take the command, execute it, and then waits for another command.

Additional Information

• Communications
  • Computer communications is a process, where two or more computers or devices transfer data, instructions, and information.
  • The most common examples are Email, SMS chat, Social Networks, etc.
• Thread
  • It is a single sequence stream within processes.
  • Threads are executed one after another but give the illusion as if they are executing in parallel.
• File Modification
  • It refers to modifying the file and folder and it can be only be done by the administrator for a computer or the owner of a file or folder.

The correct answer is RAM.

• RAM is a volatile memory while ROM is a non-volatile memory.
• While RAM allows the computer to read data to run applications, ROM stores all the application which is required to start the computer initially.
• RAM can perform both read and write operations on the information stored in it.
• ROM allows the user to read the information but not write the information. It is used to store permanent information, which is non-erasable.
• MROM, PROM, EPROM, and EEPROM are different types of ROMs.

The correct answer is PayTm.

• Facebook is an American social media platform.
• Products owned by Facebook are. Instagram, Messenger, WhatsApp, Oculus VR.
• Facebook acquired Instagram in 2012.
• Instagram was founded by Kevin Systrom and Mike Krieger
• Twitter is an American social networking service provider.
  • Parent company: Odeo.​
  • Twitter was founded by Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams
• Paytm is an Indian multinational technology company that specializes in digital payment systems.
  • Hence PayTm is the answer.

The correct answer is Gigahertz.

Key Points

• The speed of the CPU is measured in Gigahertz.
  • A central processing unit or CPU enables your computer to interact with all of the applications and installed programmes.
  • CPU interprets the program’s instructions and creates the output that is the interface.
  • The performance of the CPU has a major effect on the speed at which programs run.
  • Clock speed (also “clock rate” or “frequency”) is an important attribute to measure the performance of a processor. 
  • A higher clock speed means a faster CPU.  
  • The CPU processes many instructions from different programs every second.
  • The clock speed measures the number of cycles the CPU executes per second.
    • ​It is measured in GHz (gigahertz).
  • A “cycle” is technically a pulse synchronized by an internal oscillator.
  • During each cycle, billions of transistors within the processor open and close.
  • A CPU with a clock speed of 3.2 GHz executes 3.2 billion cycles per second.