The power supply in a computer is there to:

1.   ?    increase the voltage to make the computer work faster;
   
2.   ?    enable the computer to work at a safe 240 volts ac;
   
3.   ?    reduce the voltage from 240 V dc to about 12 V ac;
   
4.   ?    to provide a very stable low voltage.
   

Which one of the following is NOT found on a motherboard?

1.   ?    RAM;
2.   ?    CPU;
   
3.   ?    HDD;
4.   ?    BIOS.
   

Which one of the following is a problem with RAM?

1.   ?    It is faster than HDD;
   
2.   ?    It is volatile;
   
3.   ?    It stores less than the HDD;
   
   
4.   ?    It can easily be increased.
   

A fan is often found on a CPU. It is there to:

1.   ?    keep the CPU cool when it is working;
   
2.   ?    to keep the BIOS cool;
   
3.   ?    to cool the electrons in the CPU down;
   
4.   ?    to indicate to the user that the CPU is working correctly.
   

Which one of these statements is true for a graphics card?

1.   ?     It converts analogue signals to digital signals for the monitor;
   
2.   ?    It can only handle signals from special graphics programs. It cannot handle photographs;
   
3.   ?    It changes digital signals to analogue for the monitor;
   
4.   ?    Its capability can be increased by adding RAM.
   

Which one of these following devices is NOT an auxiliary storage device?

1.   ?    CD writer;
   
2.   ?    USB flash drive;
   
3.   ?    BIOS
   
4.   ?    Floppy disk drive.
   

A computer program is described as having 8 bit colour. How many colours can it display

1.   ?    8;
2.   ?     64;
3.   ?    128;
   
4.   ?    256.
   

The layout of a computer is often called its…

1.   ?     map;
   
2.   ?    circuit diagram;
   
3.   ?    architecture;
   
4.   ?     mitre
   

What is meant by a bus on a computer?

1.   ?     Connections that carry data between components;
   
2.   ?    Heavy wires that connect the motherboard to the power supply;
3.   ?    A socket that is used to mount the CPU.
   
4.   ?    A special kind of charge carrier that can carry several hundred bits of data between the components on the motherboard at any one time.
   

An example of handshaking is…

1.   ?    the process used by computer professionals to bond;
   
2.   ?    when a computer passes a message to a printer to check it’s ready;
   
3.   ?    when feedback vibration is passed into a joystick in a flight simulator;
   
4.   ?    RSI after using a keyboard too long.
   

It is not a good idea to open up a hard disk drive. This is because:

1.   ?    dust could get in and cause a head crash;
   
2.   ?    data could escape;
   
3.   ?    the hard disk runs in a vacuum and would run slower if there is air;
   
4.   ?    air molecules could react with the data to corrupt it.
   

Which one of the following is NOT true of a floppy disk?

1.   ?    data can be protected by moving a plastic tab;
   
2.   ?    it is not a reliable medium as data can often be corrupted;
   
3.   ?    it has to be protected from heat and magnetic fields;
   
4.   ?    it can hold 5 megabytes of data.
   

Which one of the following sets of arithmetical calculations can a CPU do?

1.   ?    add, subtract, multiply, divide;
   
2.   ?    add and multiply only;
   
3.   ?    add only;
   
   
4.   ?    add and subtract only.
   

The data type of a telephone number would be entered as:

1.   ?    an integer (whole number);
   
2.   ?    a long integer (for very large whole numbers);
3.   ?    a real number (a number that can be a whole number or a fraction);
   
4.   ?    a set of alphanumeric characters (letters or numbers).
   

The binary number 00110110 is the decimal number

1.   ?    12.
2.   ?    54.
3.   ?    112.
   
4.   ?    110110.
   

A computer crash is MOST likely to be a result of when:

1.   ?     two programs attempt to access the same bit of memory causing a conflict;
2.   ?    the hard drive fails.
   
   
3.   ?    dirty electricity is used.
   
4.   ?    hexadecimal numbers are used by the CPU.
   

Sounds are processed in a computer by:

1.   ?    Manipulating analogue codes;
   
2.   ?    Manipulating binary codes, each of which represents a particular sound level of the sound wave;
   
3.   ?    Manipulating hexadecimal codes, each of which represents a particular sound level of the sound wave;
   
   
4.   ?     Vibrating electrons in special buffers.
   

The decimal number 30 is written in hexadecimal as:

1.   ?     30
2.   ?    20
3.   ?    1E
   
4.   ?     A2
   

What is meant by the term embedded computer?

1.   ?     A computer that is obsolete;
   
2.   ?     A computer that is mounted into a desk to prevent theft;
3.   ?    A computer dedicated to operating a particular device;
4.   ?    A computer built to military specification to withstand battlefield conditions.
   

During an ICT lesson a student complains loudly that "This computer is being gay". The teacher goes over to help him. The MOST likely reason for the student's difficulty is:

1.   ?    The student has misunderstood a sequence of instructions needed to perform a particular function.
2.   ?    The computer has crashed.
3.   ?    The computer has taken a dislike to the student and is refusing to cooperate with him.
4.   ?    The computer has developed a very powerful emotional and physical attraction to another computer on the network. The CPU is "off-task" sending electronic messages of an intimate nature to the CPU of its friend.