Lesson 1: Common Computing Devices
Which is a true statement regarding whether or not laptops make good servers? A. Their size and weight make them perfect for a server rack, and this allows for better cooling. B. There are limited options for expansion, and its components are not practical for network-wide use cases. C. Their redundancy makes them reliable, particularly during power outages. D. Their mobility allows for more flexibility in where you store the server.
B. There are limited options for expansion, and its components are not practical for network-wide use cases. Laptops have limited options to expanding resources and storage, and therefore cannot compare to the performance of a full rack server, for example. A laptop is also not meant to run nonstop for long periods such as months or years. Overheating and battery life will be problematic. Their size and weight do not make them ideal for server racks (they are just too small). There is absolutely no room for redundancy in laptop computers. While mobility is the key to a good laptop, it doesn't usually make for a good server.
Why is a smartphone NOT a good tool for writing a report? A. They have great user interfaces that enable you to write quickly. B. Touchscreen or mini keyboards are not optimized for writing lots of text. C. They have large displays with excellent resolution. D. Their size makes them easy to place in ergonomic positions.
B. Touchscreen or mini keyboards are not optimized for writing lots of text. Smartphones do not make good tools for writing reports because their touchscreens or mini keyboards are not large enough to write large text files on, so they are not optimized for writing lots of text. Furthermore, there are some privacy concerns with Smartphones. If your phone is stolen then information will no longer be private. While smartphones do have pretty good user interfaces that can help you write quickly, they are still too small to be of any use as a word processing tool. Although smartphone sizes are increasing, their displays are still too small for effective word processing. Holding a smartphone for a lengthy period of time can be harmful from an ergonomic perspective. Very few people use smartphones in an ergonomically-safe method.
What type of computer is best suited for using in a job where you have to make notes and be able to move around easily? A. Desktop computer with an electronic stylus. B. A server that is mounted on a cart for easier mobility. C. A tablet or smartphone or possibly a hybrid laptop/tablet. D. Gaming console with voice activated commands.
C. A tablet or smartphone or possibly a hybrid laptop/tablet. The best computer suited for a job where you take notes and move around a lot is a tablet or smartphone. Furthermore, they are good for keeping you connected to all your favorite social networks. A smartphone will enable you to use Internet search engines on the move, shop at online stores, and bring all the latest news and sports into your hand. Servers are just too big to be used for this type of activity. Even if you put it on a cart, most servers require a separate keyboard/video/monitor (KVM) remote device to use them. A desktop computer would be too cumbersome to take notes on and move around with even if you had an electronic stylus. A gaming console is best suited for playing video games.
What systems use a Central Processing Unit (CPU) and memory? A. Desktops only B. Servers only C. All types of computers D. Laptops only
C. All types of computers A Central Processing Unit (CPU) and memory are used by all types of computers including servers, desktops, and laptops. The CPU retrieves each instruction or data file from memory and processes it. After, the CPU writes the results back to memory and directs other components to perform actions. Servers are a type of computer that uses a CPU and system memory along with desktops and laptops. Desktops are a type of computer that uses a CPU and system memory along with servers and laptops. A laptop is a type of computer that uses a CPU and system memory along with servers and desktops.
What type of computer is most likely to need peripheral devices? A. Smartphone B. Laptop C. Desktop D. Server
C. Desktop Desktop computers are more likely to need peripheral devices. The peripheral devices would be used to manage specific input and output processes (like printing) when necessary. Another way to look at peripheral devices is that they are dependent on the computer system. For example, most printers can't do much on their own, and they only become functional when connected to a computer system. Laptops and or tablets can have peripheral devices, but peripheral devices would end up weighing them down and making them less mobile. A smartphone is rarely used in situations where you would need a peripheral device. Servers do not usually have peripheral devices on them.
What IoT device may contain a "black box" that is able to record event data? A. Environmental controls B. Home appliances C. Window curtains D. Smart Vehicle
D. Smart Vehicle Many modern vehicles use a substantial amount of electronics and are Internet-connected. Some vehicles are fitted with a "black box," or event data recorder, that can log the car's telemetry (acceleration, braking, and position). There are now many Environmental Control Units (thermostats, heaters, air conditioners) that are controlled via a home automation hub. Some of the newer smart refrigerators are specifically marketed to be used with a home automation hub. You may be surprised with all of the household items that can connect to a hub. There is a market for window shades and curtains to be connected to a hub to control lighting in a house. These devices typically connect to an automation hub.
