1.
Explain the difference between ROM and RAM. (2 marks)
2.
Both RAM and ROM are used in computers.
(a) State what ROM is.
(b) Give one example of when ROM is used.
3.
A computer has two types of memory, RAM and ROM.
What does RAM stand for?
4.
A computer has two types of memory, RAM and ROM.
What is RAM used for?
5.
A computer has two types of memory, RAM and ROM.
What does ROM stand for?
6.
State whether each statement is True or False
MICR is used in banking
Correct Answer
A. True
Explanation
MICR stands for Magnetic Ink Character Recognition. It is a technology used in the banking industry for the processing of checks. The characters on the bottom of a check, such as the account number and bank routing number, are printed in a special magnetic ink that can be easily read and processed by MICR readers. Therefore, the statement "MICR is used in banking" is true.
7.
State whether each statement is True or False
A touch screen is necessary on home computers
Correct Answer
B. False
Explanation
The statement is False because a touch screen is not necessary on home computers. While touch screens can be convenient for certain tasks, they are not essential for the basic functioning of a home computer. Most home computers can be operated using a keyboard and mouse without the need for a touch screen.
8.
State whether each statement is True or False
The data on a DVD may be changed
Correct Answer
A. True
Explanation
The statement is true because data on a DVD can be changed. Unlike a CD, which is read-only, a DVD is capable of being written to or rewritten, allowing for data to be added, modified, or deleted. This makes DVDs a versatile storage medium that can be used for various purposes such as data backup, software installation, or media distribution.
9.
State whether each statement is True or False
Supermarkets use bar-code readers
Correct Answer
A. True
Explanation
Supermarkets use bar-code readers to scan the barcodes on products for pricing and inventory purposes. This technology allows for efficient and accurate tracking of products, simplifying the checkout process and ensuring accurate stock levels.
10.
State whether each statement is True or False
ROM is a volatile storage medium
Correct Answer
B. False
Explanation
The statement "ROM is a volatile storage medium" is False. ROM stands for Read-Only Memory, which is a type of non-volatile memory. Unlike volatile storage mediums such as RAM, ROM retains its data even when the power is turned off. ROM is typically used to store permanent instructions or data that cannot be modified or erased by normal computer operations.
11.
Select whether the statement is true or false.
A GUI uses icons
Correct Answer
A. True
Explanation
A GUI (Graphical User Interface) is a type of interface that allows users to interact with electronic devices through graphical icons and visual indicators. Icons are an essential part of a GUI as they represent various functions, applications, or files. Therefore, it is true that a GUI uses icons.
12.
Select whether the statement is true or false.
DVD players use microprocessors
Correct Answer
A. True
Explanation
DVD players use microprocessors to control various functions, such as reading the disc, decoding the video and audio signals, and displaying the content on the screen. Microprocessors are essential components in DVD players as they handle the complex operations required for the device to function properly. Therefore, the statement is true.
13.
Select whether the statement is true or false.
MICR is used to read bar codes
Correct Answer
B. False
Explanation
MICR (Magnetic Ink Character Recognition) is a technology used to recognize and process the information printed in magnetic ink on checks and other financial documents. It is not used to read barcodes. Therefore, the statement is false.
14.
Select whether the statement is true or false.
OCR is used to recognise scanned text
Correct Answer
A. True
Explanation
OCR, which stands for Optical Character Recognition, is a technology used to recognize and convert scanned or printed text into editable and searchable data. It analyzes the shapes and patterns of characters in the scanned text and translates them into machine-readable text. Therefore, the statement that OCR is used to recognize scanned text is true.
15.
Select whether the statement is true or false.
ROM loses its contents when the computer is switched off
Correct Answer
B. False
Explanation
ROM (Read-Only Memory) is a type of memory that retains its contents even when the computer is switched off. Unlike RAM (Random Access Memory), which is volatile and loses its contents when power is removed, ROM is non-volatile and its contents are permanently stored. Therefore, the statement is false.