Yes, the keyboard is attached. The Lenovo IdeaPad 130s-11 laptop is an entry level, light use system with its Intel Celeron processor, 4GB of RAM and a 64GB eMMC solid state hard drive. It ships with Windows 10 S-Mode Operating System for added security (you can switch to Windows 10 Home 64-bit Operating System at no additional cost, if you don't need the added security of S-Mode). It is not meant for multi-tasking or demanding programs. It is good for Microsoft Office and light internet browsing. The IdeaPad 130s-11 laptop ships with a free 1-year subscription to Microsoft Office 365 (a $69.00 value). If this describes your computing needs, the IdeaPad 130s-11 laptop would be a good choice.

No, this model does not have a built in CD/DVD drive, but you can use an external, USB-based, Windows 10 Compatible CD/DVD drive with this laptop.

There is a 30-day trial of Microsoft Office 365 included as part of the Windows 10 operating system. In order to keep the program active after the trial period, you will need to purchase a product key. You will not need to download any additional software. Just use the 25-digit Product Key to activate your version of Microsoft Office 365.

The Lenovo IdeaPad S145-15 laptop, model number 81N3005LUS, ships with a 2CELL_30WH_INTERNAL, Lithium Polymer Battery, with a battery life of up to 4 hours, depending on the work the device is performing. At about 3 hours, battery life is normal. To maximize battery life, first adjust your battery saver settings. Here is a link to instruction for doing this in Windows 10: https://www.digitalcitizen.life/how-use-configure-battery-saver-windows-10. Next, to maximize battery life, be sure there are no unwanted programs running in the background, draining the battery. Here is a link to some tips for finding out what is draining your battery:
https://www.laptopmag.com/articles/battery-saver-windows-10. Also, to maximize battery life, try changing your power management setting to a more conservative one. You can do this in the control panel, in the power management category on your system. Select a more conservative power management setting to extend battery life. Finally, if the battery life does not improve, a battery reset may help. Here is a link to instructions for reconditioning a non-removable battery, using the Battery Management Software installed on the computer. If you need further assistance, we recommend you call Lenovo Tech Support at: 877-453-6686. Here is the link: https://windowsreport.com/laptop-battery-not-charging-windows-10/