Question Discussion & Solution

The correct answer is Input, Process, Output, Storage

Key Points

• Input is the act of putting information into a computer.
• That information is now processed in the central processing unit of the computer.
• After the processing is completed, the computer generates the output of that information.
• The output data is now stored in the computer memory.

Additional Information

Some input and output devices of computer:

• Input
  • Keyboard
  • Mouse
  • Scanner 
• Output 
  • Printer 
  • Monitor
  • Plotter

The correct answer is It should always begin with an = (equal) sign.

• Creating a formula in Excel
  • To create a simple formula to add, subtract, multiply or divide values in your worksheet
  • Simple formulas always start with an equal sign (=), followed by constants that are numeric values and calculation operators such as plus (+), minus (-), an asterisk(*), or forward-slash (/).
• MS-Excel
  • It is a spreadsheet program for data analysis and documentation.
  • It contains a number of rows and columns, where the intersection of a column and cell and a row is a "cell".
  • Each cell contains one point of data.
  • It is developed by Microsoft.
  • It features calculation, graphing tools, pivot tables.

• All Excel formulas begin with an equal to sign (=)
• After the equal symbol, you enter either a calculation or function
• For example, to add up values in cells B1 through B5, you can either:
  • Type the entire equation: = B1+B2+B3+B4+B5
  • Use the SUM function: = SUM(B1: B5)
  • Press the Enter key to complete the formula.

The correct answer is 1 megabyte.

Key Points

• Computer data storage conversions:

The correct answer is ASCII.

Key Points

• The FAT (File Allocation Table) uses the traditional 8.3 file naming convention and all filenames must be created with the ASCII character set. 
• An 8.3 filename (also called a short filename or SFN) is a filename convention used by old versions of DOS and versions of Microsoft Windows prior to Windows 95 and Windows NT 3.5.
• It is also used in modern Microsoft operating systems as an alternate filename to the long filename for compatibility with legacy programs.
• The filename convention is limited by the FAT file system.
• Similar 8.3 file naming schemes have also existed on earlier CP/M, TRS-80, Atari, and some Data General and Digital Equipment Corporation minicomputer operating systems.

Additional Information

• ASCII abbreviated as American Standard Code for Information Interchange is a character encoding standard for electronic communication. 
• The Internet Assigned Numbers Authority (IANA) prefers the name US-ASCII for this character encoding.

• ASCII is one of the IEEE milestones. 

The correct answer is Arithmetic Logic Unit.

Key Points

•  Register
  • A register is a quickly accessible location available to a computer's processor.
  • Registers usually consist of a small amount of fast storage.
  • Some registers have specific hardware functions and may be read-only or write-only.
• ​Arithmetic Logic Unit.
  • Arithmetic Logic Unit is a combinational digital circuit.
  • It performs arithmetic and bitwise operations on integer binary numbers.
  • ALU can be designed to perform complex functions.

Additional Information

• Central processing unit
  • It is the main processor or it is electronic circuitry that executes instructions comprising a computer program.
  • The CPU performs basic arithmetic logic, controlling, and input/output operations specified by the instructions in the program.
  • The individual physical CPU processor cores can also be multithreaded to create additional virtual or logical CPUs.
• Control Unit
  • The control unit is a component of a computer's central processing unit that directs the operation of the processor.
  • It tells the computer's memory, arithmetic logic unit.
  • The control unit may include a binary counter to tell the control unit's logic what step it should do.
• Memory unit
  • A memory unit is a component of a computer system.
  • It is used to store data, instruction and information.
  • It is also known as a main/primary/internal memory.
  • There are two types of memory-:
    1. Read only memory.
    2. Random-access memory.