CHAPTER 4. Assignment from Mr. Tri Djoko Wardjono.

True/False

1. True
2. False
3. True
4. True
5. False
6. True
7. True
8. True
9. False
10. False
11. False
12. False

Multiple Choice

1. B
2. A
3. B
4. B
5. C
6. B
7. A
8. D

Matching

1. H
2. A
3. F
4. B
5. D
6. E
7. G
8. C
9. I
10. J

Short Answer

1. What are two types of designs of Tablet PCs?The two types of Tablet PCs are slate Tablet PC and convertible tablet PC.
   What are the differences in the designs of the two types of Tablet PCs?The differences in the designs are:
   With the slate Tablet PC, which typically does not include a keyboard, the system unit is behind the display. On a convertible Tablet PC, by contrast, the system unit is positioned below a keyboard, providing functionality similar to a traditional notebook computer or netbook. The difference is the display attaches to the system unit with a swivel-type hinge, which enables a user to rotate the display and fold it down over the keyboard to look like a slate Tablet PC.
2. What is the motherboard?The motherboard, sometimes called a system board, is the main circuit board of the system unit. Many electronic components attach to the motherboard; others are built into it.
   What is a computer chip?A computer chip is a small piece of semiconducting material, usually silicon, on which integrated circuits are etched.
3. What are the four basic operations in a machine cycle?For every instruction, a processor repeats a set of four basic operations, which comprise a machine cycle: (1) fetching, (2) decoding, (3) executing, and, if necessary, (4) storing. Fetching is the process of obtaining a program instruction or data item from memory.  The term decoding refers to the process of translating the instruction into signals the computer can execute. Executing is the process of carrying out the commands. Storing, in this context, means writing the result to memory (not to a storage medium).What are some functions of registers?Register functions include storing the location from where an instruction was fetched, storing an instruction while the control unit decodes it, storing data while the ALU computes it, and storing the results of a calculation.
4. What types of devices might be Bluetooth enabled?Many computers, peripherals, smart phones, PDAs, cars, and other consumer electronics are Bluetooth enabled, which means they contain a small chip that allows them to communicate with other Bluetooth-enabled computers and devices.Describe three ways in which a computer can become Bluetooth enabled.-          You can purchase a Bluetooth wireless port adapter that will convert an existing USB port into a Bluetooth port.-          Also available are Bluetooth PC Cards, and-          ExpressCard modules for traditional notebook computers and Tablet PCs
5. What is compressed air used for with regards to caring for your computer?Compressed air is used for removing dust and lint from difficult-to-reach areas or removes sticky liquid spilled on keyboardsHow should you prepare for cleaning your computer?First, prepare the following:
   1. Can of compressed air — removes dust and lint from difficult-to-reach areas; removes sticky liquid spilled on keyboards
   2. Lint-free antistatic wipes and swabs
   3. Screen cleaning solution or 50/50 mix of rubbing alcohol and water (do not use ammonia-based solutions)
   4. Small computer vacuum (or small attachments on your house vacuum)
   5. Antistatic wristband — to avoid damaging internal components with static electricity
   6. Small screwdriver (may be required to open the case or remove adapter cards)
   Before cleaning the exterior of a computer or mobile device, turn it off, and if necessary, unplug it from the electrical outlet, remove its battery, and disconnect all cables from the ports. Use compressed air to blow away dust from any openings on the computer or device case, such as drives, slots, ports, and fan vents. Then, use an antistatic wipe to clean the exterior of the case and a cleaning solution on a soft cloth to clean the screen.