Assignment assigned by Mr. Tri Djoko Wahjono (A)True/False Mark T for True and F for False. 1. The system unit is a case that contains electronic components of the computer used to process data. (210) (T) 2. The processor holds data waiting to be processed and instructions waiting to be executed. (213) (F) 3. The speed of the system clock is just one factor that influences a
computer’s performance. (216) (T) 4. Replacing a motherboard is a fairly complicated process, whereas replacing a processor is much simpler. (218) (T) 5. A byte is the smallest unit of data the computer can process. (221) (F) 6. When the computer’s power is turned off, volatile memory loses its contents. (223) (T)
7. Current processors include advanced transfer cache (ATC), a type of L2 cache built directly on the processor chip. (227) (T)
8. Read-only memory refers to memory chips storing permanent data and instructions. (228) (T)
9. Hi-Speed USB is a more advanced and faster USB, with speeds 100 times higher than that of its predecessor. (234)
10. USB 3.0 is more than 10 times faster than USB 2.0. (234) (T)
11. Both USB 2.0 and USB 3.0 are backward compatible, which means they do not support older USB devices. (234) (F)
12. SAS (serial-attached SCSI) is a newer type of SCSI that transmits more reliably, but at slower speeds, than parallel SCSI. (235) (F)
(B)Multiple Choice Select the best answer.
- B. Central processing unit (CPU)
- A. Control unit
- B. Registers
- B. Massively parallel processing
- C. Firmware
- B. Port replicator
- A. Docking station
- D. Front side bus
(C) Matching Match the terms with their definitions.
- H. Main circuit board of the system unit
- A. Interprets and carries out the basic instructions that operate a computer
- F. Provides the capability to track computer hardware and software, diagnose and resolve computer problems, and secure computers from outside threats
- B. Small ceramic or metal component with fins on its surface that absorbs and disperses heat produced by electrical components such as a processor
- D. Electronic components that store instructions, data, and results of processed data
- E. Can allocate available space on removable flash memory devices as additional cache
- G. Nonvolatile memory that can be erased electronically and rewritten
- C. Amount of time it takes the processor to read data, instructions, and information from memory
- I. Device that plugs in a USB port on the system unit and contains multiple USB ports in which you plug cables from USB devices
- J. Connects the processor to cache
(D)Short Answer Write a brief answer to each of the following questions.
1.a. Slate Tablet PC , which typically does not include a keyboard, the system unit is behind the display.
b. Convertible Tablet PC, by contrast, the system unit is positioned below a keyboard, providing functionality similar to a traditional notebook computer
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 or netbook.
2. The motherboard, sometimes called a system board, is the main circuit board of the system unit. The motherboard contains many electronic components including a processor chip, memory chips, expansion slots, and adapter cards.
A computer chip is a small piece of semiconducting material
3. The machine cycleis a set of four basic operations — fetching, decoding, executing, and storing — that the processor repeatsfor every instruction
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. Many computers, peripherals, smart phones, PDAs, cars, and other consumer electronics are Bluetooth enabled,
3 ways of making Bluetooth enabled computer:
- You can purchase a Bluetooth wireless port adapter that will convert an existing USB port into a Bluetooth port
- For notebook computers, you can buy Bluetooth pc cards express card modules
- Bluetooth cards can be bought to make PDAs and smartphones to be Bluetooth enabled
5. Compressed air can be used to blow dust away from any unreachable by normal cleaning. For cleaning computer we should turn it off, and if necessary, unplug it from the electrical outlet, remove the battery, and disconnect all cables from the ports.