Lenovo has announced a round of updates for its entry-level product lineup covering the Q-series of compact desktops and the C-Series all-in-one family. The former sees the introduction of the IdeaCentre Q190, an update to last year's Q180 model that Lenovo likes to tout as the "world's smallest full-function desktop PC," while the C-series is getting as many as seven new models equipped with 18.5-inch to 23-inch displays.

Measuring in at just 22mm (0.86 inches) wide, the Q190 is targeted at the HTPC crowd and those in the market of a space-saving computer. Exact specifications for the base model aren't available yet but Lenovo says it can be configured with up to a third-generation Core i3 processor (the Q180 was powered by Atom chips), 8GB of DDR3 memory, 1TB of hard drive storage alongside a 24GB SSD cache, and Windows 8 Pro.

Other specs include an optional Blu-ray disc drive, integrated Intel HD 3000 graphics, up to 7.1-channel surround sound support (via HDMI), an S/PDIF connector, USB 3.0 and 6-in-1 card reader. Lenovo says the tiny IdeaCentre Q190 will be available in January starting at $349.

Moving on to the C-series all-in-ones, the new lineup starts with the C240 and C245 at $350, both featuring a fixed-position, 18.5-inch display and an Intel Celeron or AMD E2 dual core processor respectively.

The C340 and C345 feature 20-inch displays alongside an Intel core i3 with Nvidia GeForce 615 2GB graphics for the former at $499, or an AMD E2 dual core processors with AMD Radeon HD graphics for the latter at $479. Similarly, the C440 and C450 represent Intel and AMD flavors of the 21.5-inch model at $519 and $499, respectively, while the C540 rounds out the roost with a 23-inch screen and an Intel-only CPU for $549.

All of them offer up to 1TB of hard drive space, with the exception of the C540 which offers up to 2TB, as well as up to 8GB of RAM, a 720p HD webcam, Dolby Advanced Audio V2, and Windows 8. The C240 and C245 will be available in November, while the rest will be available in January.