Answer all the questions.
Select the appropriate column in the following table to indicate whether the named software is system software or application software.
System Software | Application Software | |
|---|---|---|
Operating system | ||
QR code reader | ||
Printer driver | ||
On-screen calculator | ||
Anti-virus software |
Choose four features of an operating system and describe their function.
Match utility programs with descriptions?
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
Software that communicates with the operating system and translates data into a format understood by an input/output device | arrow_right_alt | virus scanner |
Software that runs in the background and checks for malware; suspect programs are quarantined and deleted if necessary | arrow_right_alt | defragmentation |
Software that rearranges data on a hard disk drive (HDD) to reduce the scattering of the data stored on the HDD | arrow_right_alt | security software |
Software that manages access control and user accounts and also protects network interfaces | arrow_right_alt | screen saver |
Program that supplies static or moving images on a monitor when the computer has been idle for a period of time | arrow_right_alt | device driver |
What is meant by virtual memory?
What is meant by disk thrashing and why does it occur?
What is meant by multitasking?
Describe what an interrupt is.
a Describe the differences between a compiler and an interpreter. [4]
b Give one advantage and one disadvantage of using a compiler. [2]
c Give one advantage and one disadvantage of using an interpreter. [2]
What is meant by the term buffer?
What is the function of a printer driver?
Which of these is the correct name for the operating system function that allows many programs to run simultaneously?
Which of these is the name of a type of interface that allows the user to type in commands on a keyboard which gives the computer instructions?
Which of these descriptions is the main purpose of a GUI?
Which of the following will produce a signal which is sent to the CPU to suspend its current operation?
On which one of the following memories are the BIOS settings stored?
Maisey purchases a new router and attaches it to her computer.
The connection she sets up uses full duplex data transmission.
Five statements are given about full duplex data transmission.
Select if the statement is True or False.
True | False | |
|---|---|---|
Full Duplex data transmission can be either serial or parallel | ||
Full Duplex data transmission is when data is transmitted both ways, but only one way at a time | ||
Full Duplex transmission is always used to connect a device to a computer | ||
Full Duplex data transmission is when data is transmitted both ways at the same time | ||
Full Duplex data transmission automatically detects any errors in data |
Identify and describe two methods of error checking that can be used in Question 16 to make sure that the data stored after transmission is accurate.
Nancy has captured images of her holiday with her camera. The captured images are stored as digital photo files on her camera.
Explain how the captured images are converted to digital photo files.
Nancy wants to email photos to Nadia. Many of the photos are very large files, so Nancy needs to reduce their file size as much as possible.
Identify which type of file compression would be most suitable for Nancy to use. Explain your choice.
Give the binary and denary equivalent of 3F hexadecimal number.